Location: United States
Director of Paid Media
Marketing · Full-time · Remote (US) · Core hours 9-5 EST
About Nysonian
Nysonian is a $250 million dollar consumer products company built around two brands:
NOBL
and
Flo Pilates
. We grew revenue 8x in 2025 and are building the next phase of the US-based business across physical products, software, and subscription experiences.
NOBL is a functional travel brand built around a simple idea: travel products should solve real problems, not just look better. Every feature is designed to eliminate friction from the travel experience — from seamless organization and easy access, to tracking, connectivity, and protection.
Flo Pilates brings studio-quality Pilates into the home through connected fitness hardware, content, and subscription experiences.
Across both brands, we're building product ecosystems that deepen the customer relationship beyond the initial purchase and create recurring value over time. We're looking for builders who want autonomy, speed, and the ability to shape products at scale.
The Opportunity
Nysonian is hiring a Head of Paid Media to own acquisition performance across NOBL and Flo, personally managing paid channels at scale and driving profitable growth. This role reports to Daniel (Co-CEO) and works closely with the performance creative and data teams.
What You'll Own
Hands-on media buying across Meta, Google, TikTok, Snapchat, and AppLovin; Launching campaigns, analyzing performance, and making spending decisions daily across all brands.
Landing-page creation and testing: turning campaign insights into page variants tailored to specific ads, audiences, and offers. You'll execute this yourself, not request it from others.
Deep account analysis: connecting ad performance to landing-page behavior, conversion data, and funnel dynamics to diagnose what's working and what's broken.
Hypothesis development and testing: forming your own theories about platform dynamics and account optimization, then running live tests to validate them.
Scaling strategy and execution: determining how much incremental spend each channel and campaign can absorb, where to redirect budget, and when to cut or consolidate.
Performance monitoring and autonomous decision-making seven days a week. Accounts need attention on weekends, and you won't hand off buying responsibility because it's Saturday.
Skills & Qualifications
Recent, hands-on media-buying experience: you personally launched, analyzed, and scaled campaigns in Meta Ads Manager. A management title or big brand on your résumé doesn't count—we need evidence you did the actual work.
Personally managed at least $1 million per month in media spend that you controlled directly.
Direct-response copywriting and landing-page creation: you've written hooks, offers, objections, and proof points, and built and tested landing-page variations yourself.
Deep Meta knowledge and obsessive attention to platform dynamics, including original thinking about campaign structure, targeting, and scaling approaches.
Strong analytical foundation: you understand CAC, new-customer ROAS, attribution limits, and how to move beyond "ROAS is down" to diagnose root causes.
Ability to connect acquisition performance to creative, offers, funnels, and landing pages—you see the full customer journey, not just ad-account metrics.
AI workflow already in active use: you have a demonstrated, concrete workflow showing how AI helps you analyze, write, build, or test faster.
Comfort with autonomy and influence: you propose the next move, don't wait for us to decide it.
This Role Is Not a Fit If
You've never personally created and tested landing pages yourself, or you treat landing-page, copy, and offer improvements as someone else's responsibility.
You stop analyzing at "ROAS is down" and can't dig through the ad, page, and conversion process to identify the likely problem and recommend a specific change.
You wait for direction on what to test or where to adjust spending instead of proposing priorities yourself and expecting to execute on your own call.
You won't personally manage the accounts on weekends or you view this as a nine-to-five role where account coverage ends Friday.
Compensation
We use a market-based approach to compensation. The expected total compensation range for this role is: USD $200,000 to $250,000. This role also offers a performance-based bonus tied to business impact (OTE $300-350k).
Why You'll Love Working at Nysonian
Culture
We're founder-led and operate with speed, direct communication, and clear accountability
We invest in tools and management practices that help colleagues do their best work
Our products are used by customers globally
AI is intentionally embedded in how we work, create, and scale
Senior leaders are expected to create structure, make decisions, and stay close to execution
Growth & Development
Competitive pay and meaningful opportunities for performance-based advancement
Ownership of strategy, systems, execution, and team buildout within your function
Opportunity to build and scale a meaningful part of the business across two consumer brands
Scope and compensation growth tied to performance, role expansion, and measurable business impact
Benefits
Comprehensive Health, Dental, and Vision Insurance options for you and your family
100% Paid for Life and Disability Insurance
Paid Time Off
Nine (9) paid holidays per year
Complimentary NOBL & Flo Pilates products
Remote-first — core operating hours are 9-5 EST
We are proud to be an equal opportunity employer. All qualified applicants will receive consideration without regard to race, color, sex, religion, gender, marital status, natio
nal origin, genetics, disability, age, veteran status or other characteristics.
Location: Remote
About GiveDirectly
What if the most effective way to fight poverty was also the simplest: give people money and trust them to decide what they need?
Since 2011, GiveDirectly has proven that idea at scale. We’ve delivered more than $1B in cash directly to 2+ million people living in poverty and crisis across 15 countries, and rigorous research shows the results: healthier kids, stronger businesses, sturdier homes, and more resilient families and local economies. Cash is now widely recognized as one of the most scalable, cost-effective, and dignified forms of aid.
Our ambition goes beyond our own programs. We want cash to become the benchmark for aid, much as the index fund became the benchmark for investing, so that every aid dollar is held to one question:
is this doing more good than giving the money directly to people living in poverty?
We’re growing fast, and this is a rare and important moment to join.
We expect to hit $1B in revenue in 2026 with significant growth forecast for 2027. At the same time we are building a new technology stack and operating model designed for a roughly 10x change in scale, and we are actively pursuing partnerships with major funders to move even more money in bigger ways, to people who need it. We are known for our extensive integration of technology into field processes; our quantitative approach to performance measurement; and our commitment to rigorous, independent, experimental evaluation of our impact, with multiple Randomized Control Trials completed and others in progress.
How we work
Our team spans 20+ countries and 69 languages. Our culture is candid, analytical, and non-hierarchical. We expect high ownership and give people real responsibility early. Our values are central to how we hire, work, and grow, and they are deliberately opinionated:
Recipients first.
Recipients’ preferences come before those of donors or ourselves.
Team next.
We optimize for organizational success, not individual success.
Be proactively candid.
We say what we believe and share information openly.
Create positive energy.
We aim to be a source of energy for colleagues, not a drain.
Think rigorously; act quickly.
We reason from first principles, then act rather than debate.
Know yourself and grow.
We own our imperfections and seek feedback to grow.
Accept reality. Propose solutions.
We focus on what can change and bring solutions, not just problems.
Be productively ambitious.
We take risks for step-change impact, not incremental progress.
If they describe how you like to work and they energize you, this could be a great fit.
Want to learn more? Read and listen:
We are one of
Time100’s
Most Influential Companies of 2026, and our work has been covered by
The Economist
,
NPR
,
TED
, and
The Washington Post
. We're now preparing to deliver billions of dollars a year to people in extreme poverty, if funding allows.
Read our CEO's essay
on what that will take.
About This Role
GiveDirectly is scaling its emergency response operations to reach more people, faster, with cash in the wake of crises. As a Senior Manager on the Delivery team, you will play a key role in building team capacity, strengthening response systems, and ensuring GiveDirectly can deploy effectively at scale. You will mentor and develop Delivery Managers and surge roster members, contribute to the strategic direction of the team, and serve in assigned functional roles during responses. This role does not currently carry direct line management responsibility, though this may be added as the team scales.
Senior Managers should be able to:
Understand and clearly communicate about the market/landscape and GiveDirectly's value proposition in their domain and across domains
Mentor teams and contribute to resource planning to develop individual members
Oversee excellence in design and implementation, with a constant drive to improve, iterate, and learn
What You'll Do
Support and Develop High-Performing Teams
Mentor and train Delivery Managers and surge roster members on response systems, tools, and operational best practices, building long-term capacity across the team
Participate in the evaluation of the team's learning opportunities and contribute to the professional development of individual team members with key performance indicators
Support quality assurance across responses, providing expertise and guidance to ensure consistent operational standards
Contribute to the strategic vision and direction of the Delivery team, in coordination with the Delivery Director
Support broader surge roster readiness, including onboarding and preparing internal and external surge staff for deployment
Strengthen Response Systems and Capabilities
Support steady-state work as assigned by the Delivery Director, including development of tools, protocols, and documentation
Contribute to the development and continuous improvement of operational tools and protocols to accelerate readiness across a growing number of countries
Conduct operational diligence and feasibility inputs for potential responses, in coordination with the Delivery Director
Define, track, and report on operational efficiency metrics to support performance management and continuous improvement
During responses, serve in an assigned functional role as directed by the Delivery Director
Support Fundraising and External Representation
Translate field learnings and operational experience into inputs for donor proposals, updates, and campaign materials, in coordination with the Fundraising team
Represent GiveDirectly at external and internal forums as assigned, including media engagements as necessary
Staff Emergency Cash Responses
Deploy on short notice to implement Emergency Cash crisis response programs
When deployed or remote: supervise program implementation, test approaches and tools, drive program design, liaise with local authorities and other response actors, and ensure excellent communication and documentation during responses
When deployed: conduct field assessments, coordinate field logistics, and ensure the safety and security of the deployed team
What You'll Bring
Alignment with GiveDirectly values:
exceptional alignment with values and an active demonstration of our core competencies — emotional intelligence, problem solving, project management, follow-through, and fostering inclusivity
5–7+ years of experience:
in a role focused on problem solving, team management, cross-functional collaboration and/or new business development. Prior humanitarian/emergency experience strongly preferred
5+ years of experience:
working in difficult settings, including low-resource and high-insecurity contexts
3–5+ years of experience:
providing direct mentoring or coaching to teams, with the ability to assess strengths and opportunities for improvement, as well as measure performance growth
Analytical problem solving:
looks at problems with an analytical and iterative mindset, with a strong framework for prioritization and the ability to bring structure and process to ambiguous problems
Strong project management skills:
the ability to manage multiple workstreams, prioritize and explicitly deprioritize, and hold a high quality bar
Strong technical skills:
including data analysis and ease with learning new third-party tech platforms and tools
Fundraising:
preference for candidates with a strong partnership and relationship-management background
Strong communication skills:
skilled in speaking, writing, presenting, and negotiating across multiple stakeholders
Enthusiasm for fast-paced environments:
which may lack a pre-defined playbook for success and involve significant "learning by doing." Comfort with ambiguity and building systems from scratch
Language Requirement:
English (professional fluency)
Language Preference:
Additional proficiency in French, Portuguese, Arabic, or other languages is a plus
Compensation
At GiveDirectly, we strive to pay our employees generously and equitably. We use an accredited third-party salary aggregator to ensure that staff's total compensation package (base compensation + bonus) falls within the 75th percentile of similar roles, at similar organizations. We also have a no-negotiation policy to ensure we are paying staff equitably across roles.
United States
Base Salary: $115,000
Bonus at Target Performance: 10% (~$11,500, with potential for upside. For reference, with the organization's current performance multiplier, this amount would be $13,455 in 2025)
Estimated Total Compensation at Target: $126,500+
Annual Benefits Stipend: $21,393
United Kingdom
Base Salary: £73,900
Bonus at Target Performance: 10% (~£7,390, with potential for upside. For reference, with the organization's current performance multiplier, this amount would be £8,646 in 2025)
Estimated Total Compensation at Target: £81,290+
Annual Benefits Stipend: £2,760
Kenya
Base Salary: $79,825
Bonus at Target Performance: 10% (~$7,983, with potential for upside. For reference, with the organization's current performance multiplier, this amount would be $9,340 in 2025)
Estimated Total Compensation at Target: $87,808+
Annual Benefits Stipend: $8,453
If you are not based in the US or Kenya, we will share an estimated salary benchmark for the country you are based in during the hiring process.
#LI-REMOTE
Working at GiveDirectly
GiveDirectly is an Equal Opportunity Employer. All qualified applicants are considered for employment without regard to the person’s race, color, religion, national origin, sex, sexual orientation, age, marital status, veteran status, disability, or any other characteristic protected by applicable law.
Flagging for US applicants:
We invite you to "
Know Your Rights
" as an applicant.
Commitment to Safeguarding
As a global organization working with communities to eliminate extreme poverty, GiveDirectly takes the safeguarding of its recipients, staff, and partners seriously. To that end, GiveDirectly is a member of the
Misconduct Disclosure Scheme
, and will systematically check with previous employers about any abuse or misconduct related matters involving potential new hires. We may also employ other robust pre-hire screens, including in-depth reference checks, criminal background checks, and sanctions screens.
These efforts help us continue to build and maintain trust with the communities we work with, and prevent abuse to our recipients and staff.
**GD is committed to observing all local, national and international laws that protect people and basic human rights of all. GD is committed to a policy of “zero tolerance when it comes to preventing, reporting, or responding to any form of abuse or exploitation.” and expects anyone who works for GD to uphold the protection and safeguarding of our recipients as a priority.**
Reasonable Accommodations
We are committed to fostering an inclusive and accessible work environment. If you require any accommodations during the application or interview process, or to perform the essential functions of the role, please email us at careers@givedirectly.org with the email subject “Accommodation Needed”. We will work with you to ensure reasonable accommodations are made to support your needs.
Want to put your best foot forward on your GiveDirectly application?
Take a look at our
Candidate Application Prep Guide
!
Referrals
Know the right person for this role? Please consider
referring them
. We offer a reward of $3,000 for a Senior Manager or above role, and $500 for a Manager role, paid if we end up hiring your referral. Thank you for sending great people our way!
Location: United States
About Nysonian
Nysonian is a 9-figure consumer products company built around two brands:
NOBL
and
Flo Pilates
. We grew revenue 8x in 2025 and are building the next phase of the US-based business across physical products, software, and subscription experiences.
NOBL is a functional travel brand built around a simple idea: travel products should solve real problems, not just look better. Every feature is designed to eliminate friction from the travel experience — from seamless organization and easy access, to tracking, connectivity, and protection.
Flo Pilates brings studio-quality Pilates into the home through connected fitness hardware, content, and subscription experiences.
Across both brands, we're building product ecosystems that deepen the customer relationship beyond the initial purchase and create recurring value over time. We're looking for builders who want autonomy, speed, and the ability to shape products at scale.
The Opportunity
Nysonian is hiring a Senior Product Designer (UI/UX) to own the end-to-end design of our digital product experiences — app, web, and subscription/account flows — across NOBL and Flo Pilates.
This role reports to VP of eCommerce and works closely with eCommerce, engineering, and brand creative.
What You'll Own
Lead end-to-end UI/UX design for digital product experiences — from early concept and wireframes through high-fidelity design and shipped product — across web, app, and connected hardware interfaces (Flo Pilates).
Own the design system and component library, ensuring consistency and speed of execution as both brands scale.
Translate ambiguous product and business problems into clear, tested design solutions — running (or partnering closely on) user research, usability testing, and iteration based on real usage data.
Partner directly with engineering to ensure design intent survives implementation, and with product management to shape roadmap priorities from a user-experience lens.
Balance two brands with distinct customer bases and product types (physical/travel vs. connected fitness/subscription) without diluting either brand's design identity.
Mentor or provide design direction to other designers/contractors as the team grows.
Skills & Qualifications
7-10 years of experience in product design (UI/UX) for consumer-facing digital products, ideally at a DTC, subscription, or connected-hardware company.
Strong portfolio demonstrating end-to-end ownership — from research and problem framing through shipped, measurable outcomes, not just polished mockups.
Experience designing for both web and mobile app, and comfort designing for connected hardware/IoT product experiences is a plus.
Fluency with modern design tooling — e.g. Figma, FigJam, Framer, or similar for prototyping — and analytics/testing tools (e.g. Amplitude, Mixpanel, Maze, Hotjar) to validate design decisions with data.
Experience building or maintaining a design system at scale.
Comfortable working daily with LLM tools (Claude, ChatGPT, or similar) — for research synthesis, copy drafting, rapid prototyping, or workflow acceleration. You don't need to be an AI expert, but you should already have this in your workflow, not be learning it on the job.
Prior experience designing for two distinct brands or product lines simultaneously is a plus.
This Role Is Not a Fit If
You're primarily a visual/UI designer without research, testing, or data-informed iteration experience — this role requires owning outcomes, not just interfaces.
You need a mature, fully-built design system and established design ops to plug into — this is being built and refined as you go.
You're looking for heavy creative-review layers before shipping — this team expects senior designers to make and defend their own calls.
Compensation
We use a market-based approach to compensation. The expected total compensation range for this role is: USD $130,000 to $160,000.
Why You'll Love Working at Nysonian
Culture
We're founder-led and operate with speed, direct communication, and clear accountability
We invest in tools and management practices that help colleagues do their best work
Our products are used by customers globally
AI is intentionally embedded in how we work, create, and scale
Senior leaders are expected to create structure, make decisions, and stay close to execution
Growth & Development
Competitive pay and meaningful opportunities for performance-based advancement
Ownership of strategy, systems, execution, and team buildout within your function
Opportunity to build and scale a meaningful part of the business across two consumer brands
Scope and compensation growth tied to performance, role expansion, and measurable business impact
Benefits
Comprehensive Health, Dental, and Vision Insurance options for you and your family
100% Paid for Life and Disability Insurance
Paid Time Off
Nine (9) paid holidays per year
Complimentary NOBL & Flo Pilates products
Remote-first — core operating hours are 9-5 EST
We are proud to be an equal opportunity employer. All qualified applicants will receive consideration without regard to race, color, ancestry, sex, religion, gender, gender identity or expression, sexual orientation, marital status, natio
nal origin, genetics, disability, age, veteran status or other characteristics.
Location: San Francisco
Workplace: Hybrid
Patreon is a media and community platform where over 300,000 creators give their biggest fans access to exclusive work and experiences. We offer creators a variety of ways to engage with their fans and build lasting businesses, including paid and free memberships, community chats, live experiences, and one-time purchases.
Ultimately, our goal is simple: fund the creative class. We're leaders in that space, with:
- $10 billion+ generated by creators since Patreon's inception
- 100 million+ free memberships for fans who may not be ready to pay just yet
- 25 million+ paid memberships on Patreon today
We're continuing to invest in building the best creator platform and team in the creator economy. We're looking for an Executive Assistant to help advance that mission.
This role is based in San Francisco and is open to candidates who can work in-office three days per week under our hybrid model.
ABOUT THE TEAM
The Office of the CEO provides high-touch support to Patreon's CEO & Co-Founder and executive team, spanning calendar management, communications, travel, and cross-functional coordination. This role partners closely with the Chief of Staff to keep the CEO's priorities, schedule, and business rhythms running smoothly.
ABOUT THE ROLE
- As a member of the Office of the CEO, you will provide support to the CEO & Co-Founder and work closely with the Chief of Staff
- Proactively manage complex calendars 3-6 months out, partnering closely with Biz Ops to ensure the CEO's calendar and the exec team's calendars stay aligned; maintain and adjust business rhythms as needed
- Proactively communicate calendar updates and priorities to the Rhythm of Business (ROB) stakeholders (Business Operations, Executive Assistants, Communications teammates)
- Maintain the CEO's inbox, draft correspondence
- Work with the Chief of Staff to procure or create meeting agendas and presentations
- Attend meetings, take notes, track action items and deliverables
- Coordinate offsites and events for the Executive Team
- Celebrate birthdays, anniversaries and new family member arrivals of Executive Team members
- Coordinate all of the CEO's business travel and some personal travel, including bookings and logistics
- Build and share quarterly/annual travel lookaheads with CEO's family office to support long-range planning
- Maintain, organize, and code receipts, expenses, and reimbursements
- Work with the Chief of Staff to create project management processes for cross-functional initiatives, building and maintaining systems that scale with the office
Projects you may work on:
- Coordinating activities, logistics and agendas for exec team offsites
- Meeting coordination during company planning, annual reviews
- Supporting monthly All Hands efforts
- Special projects on an as-needed basis
- Board meeting coordination and planning
- Annual company kickoff (PKO) planning and support
ABOUT YOU
- 3-5 years EA experience supporting C-level executives in startup or high-growth environments
- Experience supporting executives in both business and personal capacities, ideally including family office experience or close cross-functional partnership with a personal-side EA
- This is a San Francisco based role for a hybrid model company, in office 3 days/week
- Extremely organized and detail oriented
- Exercises sound judgment, confidentiality and professionalism
- Moves quickly without sacrificing efficiency or effectiveness
- Prioritizes shifting demands with a high degree of accuracy and consistent follow up
- Excellent written and verbal communication skills
- Strong project management skills; able to build and run systems and processes independently
- Ability to:
- Work autonomously
- Problem solve
- Think five steps ahead
- Create and maintain structure and processes
- Advanced knowledge of business-related tools including (but not limited to) Google Suite, Slack, Notion, and AI tools, with strong AI fluency and a demonstrated ability to leverage AI to improve productivity
ABOUT PATREON
Patreon powers creators to do what they love and get paid by the people who love what they do. Our team is passionate about making this mission and our core values come to life every day in our work. Through this work, our people:
- Put Creators First | They're the reason we're here. When creators win, we win.
- Build with Craft | We sign our name to every deliverable, just like the creators we serve.
- Make it Happen | We don't quit. We learn and deliver.
- Win Together | We grow as individuals. We win as a team.
We hire talented and passionate people from different backgrounds because workplace diversity and inclusion are critical to our ability to serve creators worldwide. If you're excited about this role but your experience doesn't match every qualification above, we strongly encourage you to apply. If you're a creator at heart, energized by our mission, and share our company values, we'd love to hear from you.
Patreon is proud to be an equal opportunity employer. We provide employment opportunities without regard to age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, veteran status, or any other protected class. If you need a reasonable accommodation during the interview process, please contact accommodations@patreon.com. http://patreon.com
Patreon offers a competitive benefits package, including salary, equity plans, healthcare, flexible time off, company holidays and recharge days, commuter benefits, lifestyle stipends, learning and development stipends, patronage, parental leave, and a 401(k) plan with matching.
Patreon operates under a hybrid work model. Employees based in office locations are expected to come into the office two days per week, excluding sick time and paid leave. The goal is to be intentional about in-person time and strengthen our sense of community. Candidates hired into remote-eligible roles are not expected to meet the same requirements.
At Patreon, we believe in fair and transparent pay. In compliance with New York and California pay transparency laws, we share the expected salary range for each role. The posted range may encompass multiple levels within the role's job family and depends on location. The final offer will reflect the candidate's experience, skills, competencies, geographic location, and alignment with Patreon's leveling framework. For remote employees located outside California and New York, salary may vary based on location and local market conditions.
Patreon reserves the right to modify or update compensation and benefits at any time.
Location: Remote - US
Founded in 2012, Bugcrowd is the preemptive security platform that unifies exposure discovery and assessment, offensive testing, and intelligence shaped by AI and human insight to help organizations avoid, discover, and validate real-world risk. Bugcrowd helps security teams move faster by identifying the exposures that matter most so they can act first and stay ahead of attackers. By combining the power of humans and AI, teams can preempt attack paths and prevent breaches. Based in San Francisco and New Hampshire, Bugcrowd is supported by General Catalyst, Rally Ventures, Costanoa Ventures, and others. Visit
www.bugcrowd.com
.
Job Summary
The Product Marketing Manager plays a central role in how Bugcrowd brings new products, features, and platform capabilities to market. This role sits within the Marketing team and reports into Brand, partnering closely with Product, Engineering, Growth, and Revenue teams to shape messaging, support launches, and turn technical depth into clear, credible stories for customers. It's a hands-on role for someone who can create clarity in ambiguity, bring structure to complex work, and move ideas from insight to execution. Success in this role requires strong judgment, thoughtful collaboration, and the ability to make complex ideas clear and compelling.
Essential Duties & Responsibilities
Own and support launches for new features, product updates, and select platform capabilities, including launch planning, audience definition, messaging development, and cross-functional coordination.
Develop messaging and evolve our positioning for assigned product areas, translating technical capabilities into clear customer value and distinct stories that resonate in the market.
Conduct customer and market research through interviews, win/loss analysis, competitive intelligence, community listening, and hands-on product exploration.
Create enablement materials for the Sales team, including launch briefs, battlecards, FAQs, pitch support, and internal guidance.
Partner cross-functionally with Product, Engineering, Design, Brand, Growth, Sales Enablement, and Customer Experience to keep initiatives moving from planning through launch.
Monitor competitive activity and market trends, and share insights that inform launch strategy, positioning, and broader product marketing recommendations.
Education, Experience, Knowledge, Skills, and Abilities
3+ years of product marketing experience, ideally in B2B SaaS, cybersecurity, or another technical category.
Demonstrated experience supporting product launches or major go-to-market initiatives from planning through execution.
Strong writing and communication skills, with the ability to translate technical concepts into clear, credible messaging for a range of audiences.
Ability to conduct and synthesize customer, product, and market research into actionable insights and recommendations.
Strong project management, prioritization, and cross-functional collaboration skills, with the ability to move work forward independently.
Experience marketing technical products, cybersecurity solutions, or offerings for highly regulated industries is preferred.
Working Conditions & Physical Requirements
The ideal candidate must be able to complete all physical requirements of the job with or without reasonable accommodation.
Sitting and / or standing - Must be able to remain in a stationary position 50% of the time
Carrying and / or lifting - Must be able to carry / move laptop as needed throughout the work day.
Environment - remote, work-from-home 100% of the time.
Pay Range Disclosure
The base pay range for this role takes into account the wide range of factors that are considered in making compensation decisions, including but not limited to Qualifications, Geographical Location, Education/certifications, Experience, Skill Sets, Training, and other business and organizational needs.
At Bugcrowd, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for the position of Product Marketing Manager
is: $83,200 - $110,000.
This position may also be eligible to participate in a discretionary bonus program or commission plan, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.
Culture
At Bugcrowd, we understand that diversity in the workplace is vital to a company’s success and growth. We strive to make sure that people are included and have a sense of being part of making Bugcrowd not only a great product but a great place to work.
We regularly hear from both customers and researchers that Bugcrowd feels like a family, and we strive to maintain that internally as well.
Our team consists of a broad range of people: musicians, adventure sports junkies, nature lovers, parents, cereal enthusiasts, night owls, cyclists, artists—you get the point.
At Bugcrowd, we are solving security threats and vulnerabilities that are relevant to everyone, therefore we believe solving these problems takes all kinds of backgrounds. We value the perspectives and experiences people from underrepresented backgrounds bring.
Disclaimer
This position has access to highly confidential, sensitive information relating to the technologies of Bugcrowd. It is essential that the applicant possess the requisite integrity to maintain the information in the strictest confidence.
The company is authorized to obtain background checks for employment purposes under state and federal law. Background checks will be conducted for positions that involve access to confidential or proprietary information (including trade secrets).
Background checks may include Social Security verification, prior employment verification, personal and professional references, educational verification, and criminal history. Applicants with conviction histories will not be excluded from consideration to the extent required by
law.
Any personal data you submit in connection with your application will be processed in compliance with Bugcrowd's Privacy Policy, which you may review here:
https://www.bugcrowd.com/privacy
.
Equal Employment Opportunity:
Bugcrowd is EOE, Disability/Age Employer.
Individuals seeking employment at Bugcrowd are considered without regards to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, or sexual orientation.
Bugcrowd is committed to the full inclusion of all qualified individuals. In keeping with our commitment, Bugcrowd will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please contact HR at ADA at bugcrowd.com.
Apply at:
https://www.bugcrowd.com/about/careers/
Location: Limassol, Cyprus
Workplace: on-site
We are looking for a hands-on DevOps Engineer with strong, recent AWS experience to join our infrastructure team.
You will work in a hybrid environment spanning AWS, private OpenStack clouds, OKD, virtual machines, and bare-metal Linux servers. We are primarily looking for someone coming from an AWS/Linux/automation background.
Our platform serves hundreds of thousands of requests per second across many thousands of virtual machines. We are therefore looking for someone who is already comfortable working with high-load, business-critical production systems, rather than someone whose experience has been limited to small-scale or early-stage environments.
CORE STACK:
AWS
Terraform
OpenStack (as a consumer: VMs, networking, storage)
OKD / Kubernetes (OKD is the upstream of OpenShift)
Helm / Helmfile
Ansible
GitLab CI/CD
Linux
Virtual machines and bare-metal servers
Prometheus / VictoriaMetrics / Grafana
ELK
Our dedicated platform teams operate the underlying OpenStack and OKD platforms, while your team owns and operates the workloads running on top of them. Previous OpenStack or OKD expertise is not required: you will not be responsible for building OpenStack or maintaining the OKD control plane, but you should be comfortable deploying, operating, and troubleshooting workloads running on these platforms.
Job Responsibilities
Typical tasks in this role include:
Build and evolve AWS infrastructure with Terraform — extending existing modules and writing new ones — across compute, networking, storage, IAM, databases, and load balancing (EC2, VPC, S3, RDS, ALB/NLB, IAM);
Provision and manage OpenStack virtual machines and the Linux services running on them, as well as workloads running on bare-metal Linux hosts;
Deploy and operate workloads in OKD using Helm and Helmfile, including maintaining charts, values, and templates, and troubleshooting deployments;
Build and improve GitLab CI/CD pipelines for application and infrastructure deployments;
Manage Linux systems with Ansible, including writing new roles and adapting existing ones;
Own observability for your workloads: configure metric collection in Prometheus and VictoriaMetrics, maintain Grafana dashboards, set up and tune alerts, and work with centralized logging in ELK — collection, parsing, and helping teams find and understand issues in application and infrastructure logs;
Work closely with Development and QA teams — supporting production systems as well as the test environments used for day-to-day development, and helping with deployments, environment configuration, infrastructure issues, and release blockers;
Troubleshoot issues across infrastructure, networking, Linux, CI/CD, and application platforms, including problems that span multiple systems;
Automate repetitive operational tasks and take part in infrastructure upgrades, migrations, and improvements.
Review infrastructure code and work with DevOps, Development, QA, and Platform teams on changes that cross team boundaries.
You’ll thrive here if you have
Has strong, recent hands-on AWS experience in large-scale, high-traffic, business-critical production systems;
Has solid experience with Terraform and Infrastructure as Code;
Has practical experience running workloads in Kubernetes-based environments and working with Helm;
Has experience building and maintaining CI/CD pipelines, preferably with GitLab CI;
Has hands-on experience with Ansible, including writing or maintaining roles;
Understands infrastructure networking: TCP/IP, DNS, routing, load balancing, firewalls/security groups, and connectivity troubleshooting;
Has practical experience with metrics and alerting (Prometheus, VictoriaMetrics, Grafana) and centralized logging (ELK);
Can troubleshoot complex problems independently and follow them across multiple layers of the stack;
Is confident with Linux, virtual machines, and production infrastructure, is comfortable working outside fully managed cloud services, and understands what runs underneath the application. Comfortable using Bash, Python, or similar for automation.
Conditions
We know that great talent deserves great conditions, so here's what you can expect when joining us:
EU-based employment contract and a 3-year Cyprus work visa with full support for your relocation and visa processes, including assistance for your family.
EU passport.
Opportunity to obtain an EU passport after 4 years of residence
Full relocation package: flights to Limassol for you and your family, a company-covered apartment for the first month, and full relocation support to make your move smooth and hassle-free.
Provident fund (Cypus): a long-term savings plan co-funded by you and the Company together (available after probation) that grows throughout your time with us in Cyprus.
Transparent performance reviews twice a year, with bonus opportunities and salary adjustments.
Private medical insurance for you and your family
Corporate mobile plan (unlimited in Cyprus with roaming included)
Mindfulness & well-being support, including psychological assistance with 50% coverage.
50% coverage of school and kindergarten fees for your children.
Fully covered sports benefits, and also access to in-house electric scooters and bike rentals
Professional growth support: language courses, conferences, training programs, and coaching.
Peer recognition program: receive and share kudos for great work.
A fully equipped office in Limassol’s city center, with everything you need for deep work and collaboration.
Free breakfasts and lunches in the office and an in-house coffee bar with high-quality drinks and a health bar stocked with nutritious snacks.
A strong engineering culture: international teams, corporate events, team buildings, and hackathons — because great work happens in great communities.
Recruitment process
HR interview (45 minutes);
Technical interview (1.5 hour);
Final interview (1 hour);
Recommendations check;
Job Offer.
Location: San Francisco, CA; New York, NY; Washington, D.C.
Workplace: OnSite
ABOUT US
Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.
We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do.
Our co-founders are Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.
ABOUT THE PUBLIC SECTOR TEAM
- Sierra recently received FedRAMP High certification, enabling us to bring our industry-leading technology to partners in the US public sector. We’re now building our founding public sector team to redefine the relationship between the government and its citizenry.
- Today, our agents already enable citizens to access social services, report fraud, and understand complex government systems. Simultaneously, they empower government officials to better hear the concerns and inquiries of their constituencies.
- We are explicitly nonpartisan and committed to empowering public servants to leverage AI to advance their important missions.
- In our journey, we are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and Family. These values are the foundation of our work, and we are committed to upholding them in everything we do.
WHAT YOU’LL DO
As an Agent Strategist, you own how Sierra’s AI agents come to life for our customers — from first pilot to a production agent handling thousands of conversations a day. You sit at the intersection of product, building agents and customer-facing work, and stay just as close to the technology as you are to the people you build for. You transform a customer’s thorniest, highest-stakes problems into agents that measurably move their business.
- Own the Agent Development Life Cycle https://sierra.ai/blog/agent-development-life-cycle. Take agents from initial scope through conversation design, tooling, evaluation, launch, and continuous iteration in production. Translate mission goals, policy requirements, and operational workflows into an agent that performs reliably in the real world.
- Be a trusted strategic advisor to public sector leaders. Work shoulder-to-shoulder with agency executives and program leaders to define success, prioritize opportunities, and shape an AI strategy grounded in mission impact.
- Partner with working teams day to day. Run working sessions with program, operations, technology, security, legal, and procurement stakeholders; resolve issues as they arise; and make the decisions that keep deployments moving toward launch.
- Identify new ways to expand our impact. Understand our partners' most urgent needs and develop roadmaps for new use cases, including proactive outreach, multilingual access, and long-horizon agents that can support people across multi-step journeys.
- Directly shape the product and our public sector strategy. Surface unmet needs from customer work, prototype new approaches, and partner with research, product, platform, and public sector leadership to influence Sierra's roadmap, market strategy, and repeatable solutions for government.
EXAMPLE PROJECTS
These are the kinds of projects that strategists on our public sector team have worked on recently:
- Improve access to benefits and services. Launch an agent that helps residents understand eligibility, gather the right information, and navigate a complex application or recertification process across channels and languages.
- Modernize constituent support. Design an agent that answers policy and program questions, provides case or application status, and routes sensitive or exceptional situations to the right public servant with full context.
- Make critical reporting easier and safer. Build trusted conversational experiences for reporting fraud, safety concerns, or other high-stakes issues while meeting rigorous privacy, security, accessibility, and auditability requirements.
- Enable proactive government services. Create a roadmap for outbound agents that remind people about deadlines, explain program changes, or help them complete important next steps before a benefit or service is interrupted.
- Build repeatable public sector capabilities. Use a live agency deployment as a design partnership to shape new platform capabilities, evaluation standards, or implementation patterns that can serve institutions across federal, state, and local government.
WHAT YOU’LL BRING
- Ownership and delivery. A track record of leading multiple complex, high-visibility initiatives and driving cross-functional teams from an ambiguous starting point to measurable outcomes - for example as part of an early team, consultancy, or otherwise..
- Technical aptitude. Comfort engaging directly with technical concepts, including reading API documentation, understanding data models and system architecture, and following engineering and security tradeoffs in design discussions.
- Commitment to public service. A passion for public sector work and a belief in the potential of institutions to improve outcomes for the people and communities they serve.
- Communication. Clear, direct, and persuasive communication across executive, operational, policy, and technical audiences, with the ability to turn complexity into shared decisions.
- Strategic problem-solving in ambiguity. Strong analytical and critical-thinking skills to break down complex problems, spot risks early, and adapt as policy, stakeholder, or implementation conditions change.
EVEN BETTER...
- Experience building or deploying AI/LLM agents in production — hands-on with the tools behind them (eval frameworks, agent tooling, RAG, prompt engineering) — working closely with technical counterparts.
- Experience working in or with federal, state, or local government, including familiarity with procurement, security and compliance, accessibility, policy implementation, or systems integration.
- You’ve been a founder, founding team member, or operator — you know how to balance craft, ownership, and speed.
- A degree in Computer Science, Engineering, Mathematics, a related technical field, or equivalent practical experience — and/or an MBA or comparable experience at the intersection of technology and business.
OUR VALUES
- Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.
- Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it.
- Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve.
- Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time.
- Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements.
WHAT WE OFFER
We want our benefits to reflect our values and offer the following to full-time employees:
- Flexible (unlimited) paid time off
- Medical, dental, and vision benefits for you and your family
- Life insurance and disability benefits
- Retirement plan dependent on country of employment
- Parental leave
- Fertility and family building benefits through Carrot
- Lunch, as well as delicious snacks and coffee to keep you energized
- Discretionary benefit stipend giving people the ability to spend where it matters most
- Free alphorn lessons
These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies.
BE YOU, WITH US
We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply even if your experience doesn't precisely match the job description. We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.
Location: San Francisco, CA; New York, NY
Workplace: OnSite
ABOUT US
Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.
We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do.
Our co-founders are Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.
ABOUT THE TECH, MEDIA & TELECOM TEAM
- We work with some of the world's most influential and recognizable companies, from global telecommunications providers and leading media brands to technology platforms that power businesses worldwide.
- We build agents for the moments that matter, helping our customers rise to the occasion when service disruptions, major product launches, or global events like the World Cup https://www.linkedin.com/posts/claybavor_at-sierra-we-are-very-proud-to-have-partnered-share-7491200202284945410-Bg79/?utm_source=share&utm_medium=member_desktop&rcm=ACoAABYjELMBZfjrg-wrv53M1tVXGe93FF3eTww drive millions of customer interactions.
- We bring Sierra’s Horizon https://sierra.ai/product/horizon vision to TMT by building agents that transform the entire customer relationship:
- Telecommunications: Turn one of the most frustrating customer experiences into one of the most personal, with agents that understand each subscriber, optimize their plan and savings, anticipate opportunities to add value, and earn their loyalty over time.
- Media: Turn every subscription into an ongoing, personalized relationship, with agents that help each subscriber get the most from their experience through the right content, offer, plan, and support from their free trial through retention.
- Technology: Bring the white-glove customer experience traditionally reserved for the largest enterprise accounts to every customer, helping them adopt the product, discover new ways to get value, expand their usage, and successfully renew.
WHAT YOU'LL DO
As an Agent Strategist https://sierra.ai/blog/agent-strategist-your-phd-in-applied-ai, you own how Sierra’s AI agents come to life for our customers — from first pilot to a production agent handling thousands of conversations a day. You sit at the intersection of product, building agents and customer-facing work, and stay just as close to the technology as you are to the people you build for. You transform a customer’s thorniest, highest-stakes problems into agents that measurably move their business.
- Own the Agent Development Life Cycle https://sierra.ai/blog/agent-development-life-cycle. Take agents from initial scope through conversation design, tooling, and evaluation, to launch and continuous iteration in production — translating business goals into an agent that outperforms, and tuning relentlessly until it’s the best version of itself in the real world. You’ll have real ownership and autonomy over the outcome.
- Be the trusted strategic advisor to enterprise leaders. Sit shoulder-to-shoulder with our customers’ executives, understand what success actually means to their business, and shape the AI strategy that gets them there.
- Partner with the customer’s working teams day to day. Run working sessions, troubleshoot the agent as issues come up, and make the calls that keep the build on track for launch.
- Directly impact product. Surface unmet needs from your customer work, and feed them back to research and platform to shape where Sierra goes next.
EXAMPLE PROJECTS
These are the kinds of projects strategists on our TMT team work on:
- Scope and launch a subscription-retention agent for a telecommunications or media company, then tune it to save more at-risk customers while preserving trust and brand voice.
- Launch a top-of-funnel sales agent for a telecommunications provider that qualifies prospects, recommends plans and devices, and converts interest into new subscriptions.
- Build a new-subscriber onboarding agent that activates service, ports numbers, configures devices, and reduces early-life churn.
- Create a proactive, long-running agent that detects service or account issues, reaches out across channels, and manages resolution before the customer contacts support.
- Develop a media growth agent that drives content discovery, trial conversion, plan upgrades, and subscription renewal.
- Partner with Product to develop capabilities for TMT-scale traffic, including low-latency voice, multilingual experiences, proactive communications, and resilient performance during major launches or service events.
WHAT YOU’LL BRING
- Customer obsession. Genuine energy being in front of customers — understanding their business and needs, thriving in complex organizations, and building trusted relationships.
- Communication. Clear, direct, and persuasive across technical and non-technical audiences.
- Strategic problem-solving in ambiguity. Strong analytical and critical-thinking skills to break down complex problems, spot risks early, and adapt as things change fast.
- Technical aptitude. Comfortable engaging directly with technical concepts — reading API documentation, understanding data models and system architecture, and following engineering tradeoffs in a design discussion.
- Ownership and delivery. A track record of running multiple complex, high-visibility projects at once and driving them to outcomes.
- Interest in telecommunications, media, and technology. Experience in telecom, streaming and digital media, enterprise or consumer technology, or subscription businesses — and familiarity with customer care, billing, identity, content, or technical support systems — is a strong plus.
EVEN BETTER...
- Experience building or deploying AI/LLM agents in production — hands-on with the tools behind them (eval frameworks, agent tooling, RAG, prompt engineering) — working closely with technical counterparts.
- You’ve been a founder, founding team member, or operator — you know how to balance craft, ownership, and speed.
- A degree in Computer Science, Engineering, Mathematics, a related technical field, or equivalent practical experience — and/or an MBA or comparable experience at the intersection of technology and business.
- Client-facing consulting, solutions, or strategy experience in a technically complex environment.
OUR VALUES
- Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.
- Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it.
- Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve.
- Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time.
- Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements.
WHAT WE OFFER
We want our benefits to reflect our values and offer the following to full-time employees:
- Flexible (unlimited) paid time off
- Medical, dental, and vision benefits for you and your family
- Life insurance and disability benefits
- Retirement plan dependent on country of employment
- Parental leave
- Fertility and family building benefits through Carrot
- Lunch, as well as delicious snacks and coffee to keep you energized
- Discretionary benefit stipend giving people the ability to spend where it matters most
- Free alphorn lessons
These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies.
BE YOU, WITH US
We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply even if your experience doesn't precisely match the job description. We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.
Location: San Francisco, CA; New York, NY
Workplace: OnSite
ABOUT US
Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.
We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do.
Our co-founders are Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.
ABOUT THE RETAIL TEAM
- Sierra is partnering with a large and growing number of retailers - spanning apparel and beauty, grocery and big-box, home and auto, consumer services, marketplaces, and consumer technology. Our agents help millions of shoppers and members every day: tracking and returning orders, finding the right product, booking services, and resolving issues in each brand’s own voice.
- Retail is also where AI agents go beyond support to generate revenue. From product discovery and personalized recommendations to cart recovery, win-back campaigns, and in-store support that turns unanswered store calls into visits and sales, our team is redefining what an agent can do for a brand’s top line - not just its cost line.
- Join us to transform how the world’s most-loved consumer brands engage their customers - and help build technology that makes shopping more personal, effortless, and delightful for everyone.
WHAT YOU’LL DO
As an Agent Strategist https://sierra.ai/blog/agent-strategist-your-phd-in-applied-ai, you own how Sierra’s AI agents come to life for our customers — from first pilot to a production agent handling thousands of conversations a day. You sit at the intersection of product, building agents and customer-facing work, and stay just as close to the technology as you are to the people you build for. You transform a customer’s thorniest, highest-stakes problems into agents that measurably move their business.
- Own the Agent Development Life Cycle https://sierra.ai/blog/agent-development-life-cycle. Take agents from initial scope through conversation design, tooling, and evaluation, to launch and continuous iteration in production — translating business goals into an agent that outperforms, and tuning relentlessly until it’s the best version of itself in the real world. You’ll have real ownership and autonomy over the outcome.
- Be the trusted strategic advisor to enterprise leaders. Sit shoulder-to-shoulder with our customers’ executives, understand what success actually means to their business, and shape the AI strategy that gets them there.
- Partner with the customer’s working teams day to day. Run working sessions, troubleshoot the agent as issues come up, and make the calls that keep the build on track for launch.
- Directly impact product. Surface unmet needs from your customer work, and feed them back to research and platform to shape where Sierra goes next.
EXAMPLE PROJECTS
These are the kinds of projects that strategists on our team have worked on recently:
- Launch an order management agent for a national apparel brand — order lookup, cancellations, returns, and exchanges — then hill-climb containment and CSAT week over week.
- Partner with Product to build a shopping agent that plugs into a retailer’s existing search and recommendation systems to guide product discovery — turning the support channel into a revenue channel.
- Stand up an in-store support voice agent for a big-box or grocery retailer, answering the stock-check and store-info calls that largely go unanswered today and converting them into store visits and sales.
- Design a booking, payments, and outbound agent for a consumer services brand operating hundreds of locations.
- Help a marketplace handle order status and buyer–seller disputes at enormous scale.
- Launch outbound campaigns — cart recovery, win-back, churn saves, and subscription renewals — across voice and SMS.
WHAT YOU’LL BRING
- Customer obsession. Genuine energy being in front of customers — understanding their business and needs, thriving in complex organizations, and building trusted relationships.
- Communication. Clear, direct, and persuasive across technical and non-technical audiences.
- Strategic problem-solving in ambiguity. Strong analytical and critical-thinking skills to break down complex problems, spot risks early, and adapt as things change fast.
- Technical aptitude. Comfortable engaging directly with technical concepts - reading API documentation, understanding data models and system architecture, and following engineering tradeoffs in a design discussion.
- Ownership and delivery. A track record of running multiple complex, high-visibility projects at once and driving them to outcomes.
- Interest in retail and consumer experiences. Experience in e-commerce, retail technology, marketplaces, or consumer brands — and familiarity with commerce and CX stacks (e.g., commerce platforms, order management systems, contact center software) — is a strong plus.
EVEN BETTER...
- Experience building or deploying AI/LLM agents in production — hands-on with the tools behind them (eval frameworks, agent tooling, RAG, prompt engineering) — working closely with technical counterparts.
- You’ve been a founder, founding team member, or operator — you know how to balance craft, ownership, and speed.
- A degree in Computer Science, Engineering, Mathematics, a related technical field, or equivalent practical experience — and/or an MBA or comparable experience at the intersection of technology and business.
OUR VALUES
- Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.
- Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it.
- Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve.
- Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time.
- Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements.
WHAT WE OFFER
We want our benefits to reflect our values and offer the following to full-time employees:
- Flexible (unlimited) paid time off
- Medical, dental, and vision benefits for you and your family
- Life insurance and disability benefits
- Retirement plan dependent on country of employment
- Parental leave
- Fertility and family building benefits through Carrot
- Lunch, as well as delicious snacks and coffee to keep you energized
- Discretionary benefit stipend giving people the ability to spend where it matters most
- Free alphorn lessons
These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies.
BE YOU, WITH US
We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply even if your experience doesn't precisely match the job description. We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.
Location: Paris
Workplace: OnSite
ABOUT VOODOO
Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz.
TEAM
As a French tech leader and global successful company, our Talent Acquisition teams are constantly looking for ways to innovate and increase organization efficiency to keep Voodoo ahead of the market. The main focus of the team is to understand how the business strategy will impact our hiring plan, and provide support to find and attract our new talents.
You will work hand in hand with our Growth team, which is a transversal entity aiming to maximize and deliver the potential of any mobile product. It combines user acquisition, creative content production, monetization, and the tech capabilities required to turn applications into global hits. With over 150 experts, we operate at the forefront of mobile marketing and ad tech across various types of games (hypercasual, hybrid, 100% IAP).
You will be working on highly scalable mobile games, played by millions of people. You will be part of a small and high-performing team and will have the opportunity to grow your skills by hiring A-Players all around the world.
ROLE
Join us as Voodoo's very first Talent Sourcer, embedded in the Growth BU (for both Gaming and Consumer Applications). In this role, you'll be responsible for identifying, engaging, and building strong relationships with top passive talent to fuel the Growth team's hiring across a wide range of profiles — from Marketing specialist, Artist, Developers, etc.
- Design and execute proactive sourcing strategies tailored to each role, going far beyond LinkedIn Recruiter — think communities, newsletters, events, niche forums, conference speaker lists, and creative outreach
- Write sharp, personalized, and compelling outreach messages that spark genuine interest and reflect Voodoo's culture and ambitions
- Build and maintain active talent pools and pipelines for current and future hiring needs, with a strong focus on nurturing long-term relationships
- Conduct in-depth market mapping to understand talent landscapes, track competitor moves, and identify where the best profiles are and how to reach them
- Balance volume and quality: manage multiple searches simultaneously while maintaining a high bar for candidate relevance and experience
- Leverage AI tools and automation (e.g. Claude, ATS) to enhance sourcing efficiency, personalize outreach at scale, and track performance
- Track and analyze sourcing metrics and iterate on your sourcing strategy
- Partner closely with recruiters and hiring managers to deeply understand role requirements, team culture and what makes a profile truly stand out - Conducting screening calls might also be a possibility
- Continuously benchmark sourcing practices and bring fresh, outside-the-box ideas to attract hard-to-reach talent
PROFILE
- Proven experience in talent sourcing, recruiting, or a research-intensive role — ideally in a fast-paced tech or gaming environment
- Resourceful and creative: you think beyond LinkedIn and know how to find talent where others don't look
- Strong written communication skills — you craft outreach messages that people actually want to reply to
- Proficient with modern sourcing tools and AI and always looking for what's next
- Strategic thinker: you build and nurture pipelines proactively, not just reactively
- Data-driven and organized, with the ability to juggle volume and quality across multiple searches at once
- Collaborative and curious, with a genuine interest in understanding talent markets and staying ahead of trends
BENEFITS
- Swile Lunch voucher
- Gymlib (100% covered by Voodoo)
- Premium healthcare coverage with SideCare, 100% covered for you and your family
- Wellness activities in our Paris office
- Remote days on Fridays
Location: San Francisco, CA; New York, NY
Workplace: OnSite
ABOUT US
Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.
We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do.
Our co-founders are Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.
ABOUT THE FINANCIAL SERVICES TEAM
- Our financial services customers span systemically important banks, neobanks committed to building more delightful banking software (1 in 3 of the world's leading banks use Sierra!), insurers that provide protection for life’s most challenging moments, vertically integrated ecosystems like Rocket Companies, and more. The decisions we make impact millions of end customers and billions of dollars in economic activity.
- Our financial services team partners closely with these organizations to set their AI strategies and build modern tools that carefully handle moments when a person’s private anxiety meets an institution’s procedural muscle - the instant before a family learns whether they are pre-approved for a mortgage; the claustrophobic half hour after someone notices a fraudulent charge; the frustrating experience of losing a card and needing to order a new one.
- Sierra’s Financial Services team is transforming the customer experience and building technology that makes the industry more accessible, human, and affordable for everyone.
WHAT YOU’LL DO
As an Agent Strategist https://sierra.ai/blog/agent-strategist-your-phd-in-applied-ai, you own how Sierra’s AI agents come to life for our customers — from first pilot to a production agent handling thousands of conversations a day. You sit at the intersection of product, building agents and customer-facing work, and stay just as close to the technology as you are to the people you build for. You transform a customer’s thorniest, highest-stakes problems into agents that measurably move their business.
- Own the Agent Development Life Cycle https://sierra.ai/blog/agent-development-life-cycle. Take agents from initial scope through conversation design, tooling, and evaluation, to launch and continuous iteration in production — translating business goals into an agent that outperforms, and tuning relentlessly until it’s the best version of itself in the real world. You’ll have real ownership and autonomy over the outcome.
- Be the trusted strategic advisor to enterprise leaders. Sit shoulder-to-shoulder with our customers’ executives, understand what success actually means to their business, and shape the AI strategy that gets them there.
- Partner with the customer’s working teams day to day. Run working sessions, troubleshoot the agent as issues come up, and make the calls that keep the build on track for launch.
- Directly impact product. Surface unmet needs from your customer work, and feed them back to research and platform to shape where Sierra goes next.
EXAMPLE PROJECTS
These are the kinds of projects that strategists on our team have worked on recently:
- Scope and launch a subscription-retention agent for a large telecommunications or media company that consistently outperforms human agents at saving at-risk customers.
- Stand up an agent for a commerce customer that troubleshoots a broken device end-to-end and personalizes product recommendations in the same conversation.
- Redesign the conversation flows for a financial services agent so it can handle complex, regulated interactions — and convert a pilot into a multi-team production deployment. See our financial services blog https://sierra.ai/blog/five-ways-to-use-ai-agents-financial-services for examples.
- Partner with product on a net-new capability — a new agent architecture or self-service tooling — using a live customer as the design partner.
- Define the evaluation and quality bar for a new agent, then use those metrics to drive a measurable lift in outcome https://sierra.ai/blog/outcome-based-pricing-for-ai-agents week over week.
WHAT YOU’LL BRING
- Customer obsession. Genuine energy being in front of customers — understanding their business and needs, thriving in complex organizations, and building trusted relationships.
- Communication. Clear, direct, and persuasive across technical and non-technical audiences.
- Strategic problem-solving in ambiguity. Strong analytical and critical-thinking skills to break down complex problems, spot risks early, and adapt as things change fast.
- Technical aptitude. Comfortable engaging directly with technical concepts - reading API documentation, understanding data models and system architecture, and following engineering tradeoffs in a design discussion.
- Ownership and delivery. A track record of running multiple complex, high-visibility projects at once and driving them to outcomes.
- Genuine interest in Financial Services and improving the end customer experience. Experience in financial technology, implementations at financial institutions, working inside of these institutions or familiarity with financial services security and compliance requirements (fair lending, PII handling, etc.) are a strong plus.
EVEN BETTER...
- Experience building or deploying AI/LLM agents in production — hands-on with the tools behind them (eval frameworks, agent tooling, RAG, prompt engineering) — working closely with technical counterparts.
- You’ve been a founder, founding team member, or operator — you know how to balance craft, ownership, and speed.
- A degree in Computer Science, Engineering, Mathematics, a related technical field, or equivalent practical experience — and/or an MBA or comparable experience at the intersection of technology and business.
OUR VALUES
- Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.
- Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it.
- Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve.
- Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time.
- Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements.
WHAT WE OFFER
We want our benefits to reflect our values and offer the following to full-time employees:
- Flexible (unlimited) paid time off
- Medical, dental, and vision benefits for you and your family
- Life insurance and disability benefits
- Retirement plan dependent on country of employment
- Parental leave
- Fertility and family building benefits through Carrot
- Lunch, as well as delicious snacks and coffee to keep you energized
- Discretionary benefit stipend giving people the ability to spend where it matters most
- Free alphorn lessons
These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies.
BE YOU, WITH US
We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply even if your experience doesn't precisely match the job description. We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.
Location: San Francisco, CA; New York, NY
Workplace: OnSite
ABOUT US
Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia.
We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do.
Our co-founders are Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.
ABOUT THE HEALTHCARE TEAM
- Our healthcare agents already reach over 50% of U.S. families. We partner with leading health plans, providers, and healthcare platforms to deliver AI agents that handle some of the most sensitive and high stakes conversations in any industry. From helping members understand their benefits to resolving billing questions with empathy, our healthcare agents are transforming how patients and policyholders interact with the healthcare system.
- Our healthcare customers include major health insurance networks, nonprofit providers, multi-site primary and urgent care practices, healthcare diagnostics companies, and healthcare financial platforms.
- Join us to transform the patient experience across the healthcare system—and help build technology that makes care more accessible, more human and more affordable for everyone.
WHAT YOU’LL DO
As an Agent Strategist https://sierra.ai/blog/agent-strategist-your-phd-in-applied-ai, you own how Sierra’s AI agents come to life for our customers — from first pilot to a production agent handling thousands of conversations a day. You sit at the intersection of product, building agents and customer-facing work, and stay just as close to the technology as you are to the people you build for. You transform a customer’s thorniest, highest-stakes problems into agents that measurably move their business.
- Own the Agent Development Life Cycle https://sierra.ai/blog/agent-development-life-cycle. Take agents from initial scope through conversation design, tooling, and evaluation, to launch and continuous iteration in production — translating business goals into an agent that outperforms, and tuning relentlessly until it’s the best version of itself in the real world. You’ll have real ownership and autonomy over the outcome.
- Be the trusted strategic advisor to enterprise leaders. Sit shoulder-to-shoulder with our customers’ executives, understand what success actually means to their business, and shape the AI strategy that gets them there.
- Partner with the customer’s working teams day to day. Run working sessions, troubleshoot the agent as issues come up, and make the calls that keep the build on track for launch.
- Directly impact product. Surface unmet needs from your customer work, and feed them back to research and platform to shape where Sierra goes next.
EXAMPLE PROJECTS
These are examples of projects our healthcare team has worked on:
- Lead the project for building AI agents for major health insurance networks that handle detailed questions like “what’s my co-pay for a primary care visit?” and “how many physical therapy sessions do I have left?”
- Ideate and create a roadmap for growing value for large healthcare payers and providers.
- Create AI agents for multi-site primary and urgent care providers that manage appointments and answer common questions across 30+ clinics.
- Build agents that replace lengthy paper intake forms with conversational experiences, boosting pre-visit intake conversion rates.
- Develop AI agents for healthcare financial platforms that help patients understand billing, payment status, explanations of benefits, and financial assistance eligibility.
WHAT YOU’LL BRING
- Customer obsession. Genuine energy being in front of customers — understanding their business and needs, thriving in complex organizations, and building trusted relationships.
- Communication. Clear, direct, and persuasive across technical and non-technical audiences.
- Strategic problem-solving in ambiguity. Strong analytical and critical-thinking skills to break down complex problems, spot risks early, and adapt as things change fast.
- Technical aptitude. Comfortable engaging directly with technical concepts - reading API documentation, understanding data models and system architecture, and following engineering tradeoffs in a design discussion.
- Ownership and delivery. A track record of running multiple complex, high-visibility projects at once and driving them to outcomes.
- Genuine interest in healthcare and improving patient/member experiences. Experience in healthcare technology, health IT or working with healthcare organizations and an understanding of healthcare compliance requirements (HIPAA, PHI handling and healthcare data privacy) are a strong plus.
EVEN BETTER...
- Experience building or deploying AI/LLM agents in production — hands-on with the tools behind them (eval frameworks, agent tooling, RAG, prompt engineering) — working closely with technical counterparts.
- You’ve been a founder, founding team member, or operator — you know how to balance craft, ownership, and speed.
- A degree in Computer Science, Engineering, Mathematics, a related technical field, or equivalent practical experience — and/or an MBA or comparable experience at the intersection of technology and business.
OUR VALUES
- Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.
- Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it.
- Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve.
- Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time.
- Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements.
WHAT WE OFFER
We want our benefits to reflect our values and offer the following to full-time employees:
- Flexible (unlimited) paid time off
- Medical, dental, and vision benefits for you and your family
- Life insurance and disability benefits
- Retirement plan dependent on country of employment
- Parental leave
- Fertility and family building benefits through Carrot
- Lunch, as well as delicious snacks and coffee to keep you energized
- Discretionary benefit stipend giving people the ability to spend where it matters most
- Free alphorn lessons
These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies.
BE YOU, WITH US
We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply even if your experience doesn't precisely match the job description. We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.
Location: Remote, APAC
Workplace: Remote
ABOUT SUPABASE
Supabase is the Postgres development platform, built by developers for developers. We provide a complete backend solution including Database, Auth, Storage, Edge Functions, Realtime, and Vector Search. All services are deeply integrated and designed for growth.
ABOUT THE ROLE
We’re looking for an experienced, fluent Japanese speaking Database Support Engineer to join our Support Team and help developers unblock complex issues, build more reliably, and get the most out of the Supabase platform. You’ll work closely with customers and engineering, helping us improve product quality and developer experience based on real-world usage.
This role is ideal for someone who thrives in async, fast-paced environments and is excited about building developer tools that scale to millions.
WHAT YOU’LL BE RESPONSIBLE FOR
In this role, you’ll:
- Investigate and resolve advanced customer issues across Postgres, Auth, RLS, Storage, Realtime, Edge Functions, and client libraries.
- Provide consultative, proactive advice to optimize workloads, avoid common pitfalls, and tailored advice to our most advanced users.
- Reproduce bugs, isolate root causes, propose workarounds, and escalate to engineering with solid repro steps.
- Ask smart, targeted questions that turn incomplete reports into actionable cases.
- Communicate clearly and empathetically with customer users of all levels—especially during high-impact or time-sensitive situations.
- Spot patterns across tickets and recommend improvements to docs, tooling, and the product itself.
- Mentor junior team members and help raise the overall bar for support quality.
YOU MIGHT BE A GOOD FIT IF YOU
- You have 6+ years in technical support, backend engineering, SRE, or similar.
- You know PostgreSQL deeply—autovacuum behavior, WAL growth, long-running transactions, table bloat, and other internals.
- You’re strong in high-performance SQL and query optimization.
- You’re comfortable troubleshooting complex setups, including multi-tenant schema patterns.
- You can debug edge functions and understand distributed system behavior when failures get tricky.
- You’ve handled data migration issues (pg_dump/restore, schema drift, failed migrations) and know how to recover safely.
- You have hands-on experience with cloud hosting providers like AWS.
- You’re comfortable in terminal and Linux environments.
- You thrive in high-volume situations and can form/test assumptions quickly.
ADDITIONAL REQUIREMENTS
- Must be a fluent bilingual Japanese/English Speaker
- Must have experience support complex technical products in Japanese with native speakers
- Ideally located in Japan, but location is flexible as long as you can work during Japan business hours.
データベースサポートエンジニア
Supabaseについて
Supabaseは、開発者が開発者のために作ったPostgres開発プラットフォームです。データベース、認証、ストレージ、Edge Functions、リアルタイム機能、ベクトル検索を含む、完全なバックエンドソリューションを提供しています。すべてのサービスは緊密に統合されており、成長に対応できるよう設計されています。
職務内容について
経験豊富な日本語で対応可能なデータベースサポートエンジニアを募集し、サポートチームに参加していただきます。開発者の複雑な課題解決を支援し、より信頼性の高い開発を実現し、Supabaseプラットフォームを最大限に活用していただけるようサポートします。お客様やグローバルのエンジニアリングチームと密接に連携し、実際の利用状況に基づいて製品品質や開発者体験の向上に貢献していただきます。
このポジションは、非同期かつスピード感のある環境で力を発揮でき、数百万人規模で利用される開発者ツールの構築にやりがいを感じる方に最適です。
主な業務内容
このポジションでは、以下の業務を担当していただきます。
- Postgres、認証、RLS、ストレージ、リアルタイム機能、Edge Functions、クライアントライブラリにまたがる高度な顧客課題の調査・解決
- ワークロードの最適化やよくある落とし穴の回避に向けたコンサルティング的かつ積極的なアドバイスの提供、および最も高度なユーザーへの個別対応
- バグの再現、根本原因の特定、回避策の提案、および確実な再現手順を伴うエンジニアリングチームへのエスカレーション
- 不完全な報告内容を対応可能な案件に変えるための、的確で的を絞った質問
- あらゆるレベルの顧客ユーザーとの明確かつ思いやりのあるコミュニケーション(特に影響度が高い、または緊急性の高い状況において)
- チケット全体からパターンを見出し、ドキュメント、ツール、製品自体の改善を提案
- ジュニアメンバーの育成、サポート品質全体の向上への貢献
以下に当てはまる方はこのポジションに向いています
- テクニカルサポート、バックエンドエンジニアリング、SRE、または類似職種で6年以上の経験がある方
- PostgreSQLに関する深い知識をお持ちの方(autovacuumの挙動、WALの増加、長時間実行トランザクション、テーブルの肥大化などの内部構造を含む)
- 高パフォーマンスなSQLおよびクエリ最適化に強みをお持ちの方
- マルチテナントのスキーマパターンを含む、複雑な構成のトラブルシューティングに抵抗がない方
- Edge Functionsのデバッグができ、障害が複雑化した際の分散システムの挙動を理解できる方
- データ移行に関する問題(pg_dump/restore、スキーマの差異、移行失敗など)に対応した経験があり、安全な復旧方法を理解している方
- AWSなどのクラウドホスティングプロバイダーでの実務経験がある方
- ターミナルおよびLinux環境に抵抗なく対応できる方
- 業務量の多い状況でも力を発揮でき、素早く仮説を立てて検証できる方
追加要件
- 日本語・英語のバイリンガルであること
- 日本語の顧客を対象に、技術製品のサポートを行った経験があること
- 日本在住が望ましいですが、日本の勤務時間帯に対応できれば勤務地は柔軟に対応可能です
WHAT WE OFFER
- Fully Remote
We hire globally. We believe you can do your best work from anywhere. There are no Supabase offices, but we provide a WeWork membership or co-working allowance you can use anywhere in the world.
- ESOP
Every team member receives ESOP (equity ownership) in the company. We want everyone to share in the upside of what we’re building together.
- Tech Allowance
Use this budget to set up your ideal work environment—laptop, monitor, headphones, or whatever helps you do your best work.
- Health Benefits
Supabase covers 100% of health insurance for employees and 80% for dependents, wherever you are. Your wellbeing and your family’s health are important to us.
- Annual Off-Sites
Once a year, the entire company gathers in a new city for a week of connection, collaboration, and fun. It’s a highlight of our year.
- Flexible Work
We operate asynchronously and trust you to manage your own time. You know what needs to be done and when.
- Professional Development
Every team member receives an annual education allowance to spend on learning—courses, books, conferences, or anything that supports your growth.
ABOUT THE TEAM
Supabase was born-remote and open-source-first. We believe our globally distributed team is our secret weapon in building tools developers love.
- ~400 team members
- 60+ countries
- 20+ languages spoken
- Over $1B raised (including our $500M Series F)
- 540,000+ community members
We move fast, build in public, and use what we ship. If it’s in your project, we probably use it in ours too. We believe deeply in the open-source ecosystem and strive to support—not replace—existing tools and communities.
Location: Munich
Workplace: onsite
Creatio is an AI CRM and workflow platform where people and AI agents work together — with no limits on users, agents, or scale. We help midsize and large organizations run customer workflows in the AI era. With a global team and a large ecosystem of partners, Creatio serves thousands of customers in over 100 countries and automates tens of millions of workflows daily. Genuine care for our clients and partners is at the heart of our DNA.We’re proud to be recognized by top industry analysts as a Leader and Strong Performer in multiple Gartner and Forrester reports. In 2025, Creatio was named to Inc.’s Best Workplaces list, recognizing our commitment to employee wellbeing and a strong workplace culture.Who we're looking for:AI Consultant to help enterprises identify, design, and launch high-value AI agents with measurable outcomes. Sitting at the intersection of business consulting, AI strategy, and solution design, you'll be a trusted advisor to our customers — driving their AI strategies, creating AI adoption roadmaps, and designing AI agent concepts and specifications. You'll collaborate cross-functionally with AI engineers, product, solution engineering, sales, and customer success teams to ensure agents are deployed, scaled, and delivering high ROI to our customers' businesses.The role is based in Munich, Germany.Key Responsibilities:Collaborate with customers to develop AI adoption roadmaps and identify potential opportunities for AI use cases.Gain a deep understanding of each customer's domain and business processes to prioritize the most impactful AI use cases, based on business impact and technical feasibility.Translate business problems and opportunities into solution concepts, requirements, and implementation proposals, with success metrics and guardrails.Design AI agent solutions and redesign workflows around them — removing repetitive work, unlocking new possibilities.Define how AI agents integrate with enterprise systems — CRM, ERP, SaaS applications, APIs, MCPs, workflows.Prepare agent specifications and solution documentation that enable delivery teams to implement successfully.Collaborate with Sales, Customer Success, Product, and Delivery teams across pre-sales, implementation, and adoption.Support customer presentations and executive discussions around AI strategy.Stay up to date with emerging AI technologies, agentic AI trends, and industry best practices.Required Skills & Competencies:Strong skills in business analysis, process design, value mapping, and discovery.Familiarity with modern LLMs, AI agent architecture, and business process automation; comfort with APIs and integrations.Experience in Solution Consulting, AI Consulting, Solution Implementation, Business Consulting, or a similar customer-facing role.Hands-on experience designing or launching AI-powered solutions or AI agents.Experience translating business requirements into solution designs.Experience working with enterprise customers and multiple stakeholders.Excellent executive communication and presentation skills.Strong analytical and systems thinking.Excellent spoken and written German and English.What to expect from us:Growth & Development: Clear career paths, mentorship opportunities, and access to continuous learning to help you reach your full potential.Flexibility & Well-Being: We provide flexible work arrangements and initiatives that empower you to manage your schedule effectively, stay productive, and thrive both personally and professionally.Recognition & Impact: A culture that celebrates achievements, values your ideas, and empowers you to make real contributions from day one.Innovative Culture: Be part of a company that embraces new ideas, modern technologies, and bold thinking to stay ahead of the curve.Benefits & Rewards Package: We provide competitive compensation and benefits designed to support you and your family. Our rewards approach goes beyond salary, recognizing your contributions and commitment. The exact package may vary depending on your country of residence and employment type.
Location: Berlin Office
Workplace: Hybrid
The AI orchestration of your wildest imagination.
n8n is the open workflow orchestration platform built for the new era of AI. We give technical teams the freedom of code with the speed of no-code, so they can automate faster, smarter, and without limits. Backed by a fiercely inventive community and 500+ builder-approved integrations, we’re changing the way people bring systems together and scale ideas for impact.
Since our founding in 2019, we’ve grown into a diverse team of over 260 - working across Europe and the US, connected by a shared builder spirit and with our centre of gravity in Berlin. Along the way, we’ve:
- Cultivated a community of more than 650,000 active developers and builders
- Earned 190K+ GitHub stars, making us one of the world’s Top 40 most popular projects
- Backed by top investors, from Sequoia’s first German seed to our SAP's recent strategic investment - bringing us to a $5.2bn valuation
That’s the company we’ve built. Now we’d love to see what you can build. If you’re applying, try n8n out - whether you’re technical or not - and share a screenshot of your first workflow with us. The easiest place to start is here: app.n8n.cloud/register http://app.n8n.cloud/register.
We’re in a defining moment of an incredible journey. Come and build with us.
3 days per week in our Berlin office
BUILD YOUR ENTERPRISE SALES CAREER AT N8N
n8n is growing rapidly at the intersection of AI, automation and enterprise software. More than 1.7 million active builders use n8n each month, and we’re scaling our enterprise business as more organisations look for ways to connect AI with the systems, data and workflows that run their businesses.
We’re building our SDR team in Berlin and looking for an Enterprise Sales Development Representative to join us.
You’ll partner closely with Enterprise Account Executives to break into some of the largest organisations in the DACH region. This isn’t about maximising email volume. You’ll take a thoughtful, account-based approach: researching strategic companies, identifying the right stakeholders, understanding their priorities, and creating relevant conversations around automation and AI.
If you’re succeeding in an SDR/BDR role and want greater exposure to enterprise selling, strategic account planning, technical buyers and a genuine path towards AE, this could be a great next step.
WHY N8N?
🚀 Serious momentum. n8n has grown rapidly into a major player in workflow automation and AI, with more than $100M in ARR, 1,400+ enterprise customers, and a $5.2B valuation following strategic investment from SAP.
📈 Build towards AE. We want the SDR role to be a platform for your next step. High-performing SDRs can develop through our structured SDR → AE programme, with live deal exposure, discovery and MEDDPICC coaching, call reviews, and opportunities to take greater ownership of real opportunities alongside experienced AEs.
✏️ Learn enterprise selling. Work alongside Enterprise AEs on account strategy, stakeholder mapping, messaging, discovery and opportunity creation - gaining exposure to how complex enterprise deals are built from the start.
🤖 Sell where the market is going. You’ll engage technical and executive buyers around AI, automation and some of the most important technology challenges businesses are tackling today.
⚡Use AI to sell smarter. Experiment with AI, n8n and modern sales technology to research accounts, understand buyers, personalise outreach and improve how you work. You don’t need to be an engineer - but you should be curious about technology and excited to learn.
WHAT YOU’LL DO
- Build enterprise pipeline: Prospect into a focused set of strategic accounts and create qualified opportunities.
- Develop account strategies: Partner with Enterprise AEs to identify priority companies, stakeholders, challenges, use cases and engagement strategies.
- Research your prospects: Understand the business and technical priorities of stakeholders across IT, DevOps, SecOps, Engineering and related teams.
- Create outreach that gets attention: Develop thoughtful, personalised messaging tied to real account priorities rather than generic sequences.
- Prospect across channels: Engage prospects through email, phone, LinkedIn and other relevant channels.
- Lead early-stage discovery: Understand business needs, technical environments, priorities, urgency and potential fit with n8n.
- Continuously improve: Use Salesforce, Outreach, Apollo, AI tools, coaching and performance data to sharpen your approach.
WHAT WE’RE LOOKING FOR
We’re looking for someone with a strong SDR foundation who wants to develop into an excellent enterprise seller.
You’ll likely be a good fit if you have:
- SDR or BDR experience in B2B SaaS, software or technology
- Experience generating pipeline through outbound prospecting within mid- market or enterprise accounts
- A strong sales track record against your targets
- Fluency in German (C1 level- fluent or bilingual)
- Confidence engaging senior business and technical stakeholders
- A thoughtful approach to account research, personalisation and qualification
- Curiosity about technical products, automation and AI
- Resilience, consistency and ownership of your results
- The ability to work from our Berlin office three days per week
Bonus points if you have: experience prospecting into technical audiences; familiarity with buying committees, Salesforce, Outreach, Apollo or MEDDPICC; experience using AI or automation in your own sales workflow.
WHAT SUCCESS LOOKS LIKE
Success here is about quality, not just activity.
You’ll build a deep understanding of your accounts, identify the right stakeholders, create messaging that earns attention and generate qualified enterprise opportunities that can turn into meaningful revenue.
Along the way, you’ll build experience in enterprise account strategy, technical selling, discovery, AI and automation, and complex B2B sales - giving you a strong foundation for the next stage of your career.
INTERESTED?
You don’t need to meet every requirement to apply.
If you have a strong foundation in outbound sales, you’re curious about technology, and you’re excited by the opportunity to help build n8n’s enterprise business while developing towards your next step in sales, we’d love to hear from you.
n8n is an equal opportunity employer and does not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, gender identity, age, marital status, veteran status, or disability status.
We can sponsor visas to Germany; for any other country, you need to have existing right to work.
Our company language is English.
You care about diversity and inclusion? We do too! Check out our Diversity, Inclusion and Belonging initiatives at n8n https://www.notion.so/Diversity-inclusion-and-belonging-n8n-c1bec2fff536422d868b1a438d990e35?pvs=21 (https://www.notion.so/n8n/Diversity-inclusion-and-belonging-n8n-c1bec2fff536422d868b1a438d990e35).
Location disclaimer: If you see multiple job postings for the same role, it is most likely because we're hiring remotely for this role and posting in different locations to make sure every potential candidate can see the role. Please apply to the location you're the most likely to work from in the future.
BENEFITS
- Competitive compensation 💸 – We offer fair and attractive pay.
- Ownership 💪 – Our core value is to “empower others,” and we mean it—you’ll get a slice of n8n with equity.
- Work/life balance 🏖️ – We work hard but ensure you have time to recharge:
- Europe: 30 days of vacation, plus public holidays wherever you are.
- US: 20 vacation days, 8 sick days, plus public holidays wherever you are.
- Health & wellness 🩺 –
- Europe: We provide benefits according to local country norms.*
- US: Multiple low-premium, low-deductible medical plans with coverage for individuals and families—plus a no-cost premium HDHP option with a pre-seeded HSA—along with dental and vision coverage.
- Future planning 💰 –
- Europe: We provide pension contributions according to local country norms.*
- US: 401(k) retirement plan with a 4% employer match.
- Financial security 🛡️ –
- Europe: We provide benefits according to local country norms.*
- US: Company-paid short-term and long-term disability insurance, plus life insurance to support you and your loved ones.
- Career growth 📈 – We hire rising stars who grow with us! You’ll get €1K (or equivalent) per year to spend on courses, books, events, or coaching to level up your skills.
- A passionate team 🤩 – We love our product, and we prove it with regular hackathons where we see who can build the coolest thing with it!
- Remote-first 🌏 – Our team works remotely across Europe, with regular off-sites for team bonding. Some roles, like sales in the US, are hybrid—please check the job description.
- Giving back 🤝 – We're big fans of open source, and you'll get $100 per month to support projects you care about.
- Transparency 🙏 – We all know what everyone’s working on, how the company is doing—the whole shebang.
*Country and/or State specific details provided in your employment agreement.
Location: Rijeka
Workplace: remote
CSM Rijeka is looking for self-motivated and skilled seafarers to join our expanding fleet of Columbia Shipmanagement.
JOB DESCRIPTION & JOB QUALIFICATIONS
Responsible for navigation safety and voyage planning, including chart corrections and publications
Assists Chief Officer in cargo operations, inspections, and safety duties
Responsible for the safety equipment and Voyage plan of the vessel.
Holder of valid COC (STCW Reg II/1) with verification.
Holder of valid STCW certifications required for the position.
Good communication and leadership skills.
Fluent in written and spoken English language.
Experience with multicultural working environment.
Safety culture and mindset.
VESSEL'S SPECIFIC REQUIREMENTS
Minimum experience requirements: 6 months in Rank with the same type/size of vessel.
Experience onboard same vessel tonnage is mandatory.
Experience in Steam Turbines cargo pump system is recommended.
Experience with Crude Oil and STS cargo operations.
Experience in trading area USA and Australia is recommended.
CONTRACT TERMS & CONDITIONS
Contract Duration [4 months +/- 1 months]
Contract Benefit: Competitive salary
Terms and condition as per CBA applicable
Rejoining Bonus
Free Internet onboard and wellbeing support
You may include with your application any reference, specific job qualification, and your availability date.
Looking forward to welcoming you in the Columbia Group Family.
Location: Rijeka
Workplace: remote
CSM Rijeka is looking for self-motivated and skilled seafarers to join our expanding fleet of Columbia Shipmanagement.
JOB DESCRIPTION & QUALIFICATIONS
Responsible for leading Engine room team to ensure smooth operation of Engines and machinery equipment.
Experience in repairs and dry docking is required.
Holder of valid STCW certifications required for the position.
Good communication and leadership skills.
Effective English communication.
Safety culture and mindset.
Experience with multicultural working environment.
VESSEL'S SPECIFIC REQUIREMENTS
Minimum Experience in Rank 12 months with Engine type (MAN B&W 2 stroke)
Experience on Electronic engines is advantage
Substantial experience on large cruise ships with worldwide itinerary.
Experience in trading USA area is recommended
Holder of valid national COC and C1/D US Visa
CONTRACT TERMS & CONDITIONS
Contract Duration [4 months +/- 1 month]
Contract Benefit: Competitive salary
Terms and condition as per CBA applicable
Bonus Scheme
Free Internet onboard and wellbeing support
You may include with your application any reference, specific job qualification, and your availability date.
Looking forward to welcoming you in the Columbia Group Family.
Location: Taipei
Nex is on a mission to help families rediscover the joy of movement. Created by parents for parents, Nex combines technology and play to deliver fun, social, and interactive experiences powered by natural body motion, encouraging kids and adults to move more, play more, and have fun together. Nex Playground, the company’s award-winning active play system, is purpose-built to get families moving year-round, with safety and privacy as core considerations in its intentional design. It is certified kidSAFE+ COPPA compliant and built to support healthy, active play for all ages and abilities.
Nex Playground features a growing library of 50+ experiences, including motion and dance games, fitness and educational experiences, and Nex Originals. Content includes collaborations with partners like Hasbro, Sesame Workshop, and NBCUniversal. Nex has been recognized by Fast Company’s Most Innovative Companies, TIME’s Best Inventions, and Parents’ Best Entertainment System for Families, and has earned Red Dot, IDEA, and Core77 international design awards. We encourage you to explore
Have Fun
and
Is Motion Gaming Back?
, as they offer a deeper look into our culture, values, and explain how our approach to motion gaming differs from previous generations.
Nex employees may be expected to collaborate with colleagues across different time zones. Depending on the role and location, occasional travel may also be required for company events, external meetings, and other business-related activities.
Important Notice:
⚠️ To protect yourself from recruitment scams, please note that Nex communicates through official company emails ending in
@nex.inc
. If you receive a suspicious email or message, please do not respond and report it immediately to us.
Location: Hong Kong
Type: Full Time
Reports to: Sr. Director, Design
The Role
We are looking for a skilled VFX Artist to join our team and help create immersive, dynamic, and deeply satisfying gameplay experiences. In this role, you'll bridge the gap between art and engineering, bringing stunning visual effects, polish, and tactile gameplay feedback to life in Unity.
You'll work closely with the art director, designers, artists, and engineers to develop and implement real-time effects, visual feedback systems, and environmental interactions that heighten player immersion and reinforce the impact of gameplay actions. The ideal candidate combines strong technical knowledge of Unity's rendering and shader systems with a keen artistic eye for timing, motion, and visual feedback to make every moment feel alive and rewarding.
What You'll Do
Implement real-time visual effects (e.g., impact feedback, slashes, dashes, explosions or magic) using Unity's VFX Graph, Particle System, and Shader Graph (or custom shaders).
Collaborate with designers to amplify game feel, ensuring player actions are satisfying, readable and responsive.
Optimize visual effects for performance while maintaining high artistic quality.
Develop tools, scripts, and shaders to streamline asset integration and improve artist workflows.
Work with environment artists and designers to enhance environmental storytelling through lighting, VFX, and dynamic world elements.
Collaborate with character artists and designers to enrich character visuals using shaders, special effects, and dynamic components.
Troubleshoot rendering, lighting, and material issues and propose creative technical solutions.
What We're Looking For
Proven experience as a Technical Artist or VFX Artist in Unity-based game production.
Solid understanding of real-time rendering, materials and shader creation.
Strong grasp of timing, motion, and visual rhythm to enhance moment-to-moment player feedback.
Experience with performance optimization techniques (profiling, LOD, draw call reduction, shader optimization, etc.)
Proficiency with C# scripting to implement and control visual systems.
A collaborative mindset, comfortable bridging the gap between the art and development teams.
Exceptional analytical and problem-solving abilities with a proactive approach to finding solutions.
Excellent verbal and written communication skills, with the ability to clearly articulate complex technical concepts to both technical and artistic audiences.
Passion for creating high quality and deeply satisfying experiences that touches players.
Curiosity and drive for continuous learning and growth.
Pluses
Extensive knowledge of game performance optimization and provide guidance on art assets best practices. +++
Be able to plan and maintain rendering budget with artists for individual project's requirement. ++
Ability to design and concept VFX art. ++++
Expertise with Unity’s render pipelines and the ability to customize them for specific hardware and project needs. ++
Knowledge and experience in UI animations and UI VFX. ++
Knowledge and experience in 3D animations pipeline, e.g. rigging, animating. ++
We Offer
Competitive compensation package.
Flexible working hours and vacation policy.
Product-driven culture that treasures talents and individual growth.
Front-row seat and hands-on experience with cutting edge technologies in the evolving gaming field
Nex is located in
San Jose, California, USA
and
Hong Kong
. Learn more about us at
https://www.nexplayground.com/about
.
We encourage applications even if you don’t meet more than 50% of the requirements — we believe that experience comes in many forms!
Nex is an equal opportunity employer and does not discriminate on the basis of race, color, religion, sex (including pregnancy, childbirth, gender identity, and sexual orientation), national origin, ancestry, age, physical or mental disability, medical condition, genetic information, marital status, military or veteran status, or any other characteristic protected by applicable law. This policy applies to all individuals at every stage of the employment relationship, including all current and prospective employees, and covers all employment decisions including recruitment, hiring, job assignment, promotion, compensation, benefits, training, discipline and termination.
We are committed to providing a workplace free from discrimination and harassment and to fostering an inclusive environment for all employees.
УдалённоseniorRemote
seniorUnited States
Не хотите искать каждый день?
Настройте подбор один раз, и подходящие вакансии будут сами приходить в Telegram.
Настройте подбор, и подходящие вакансии будут приходить в Telegram.
ГибридFor remote employees located outside California and New York, salary may vary based on location and local market conditions
УдалённоRemote - US
ОфисLimassol, Cyprus; EU-based employment contract and a 3-year Cyprus work visa with full support for your relocation and visa processes, including assistance for your family; Full relocation package: flights to Limassol for you and your family, a company-covered apartment for the first month, and full relocation support to make your move smooth and hassle-free
ОфисSan Francisco, CA; New York, NY; Washington, D.C.
ОфисSan Francisco, CA; New York, NY
ОфисSan Francisco, CA; New York, NY
ОфисParis
ОфисSan Francisco, CA; New York, NY
ОфисSan Francisco, CA; New York, NY
УдалённоRemote, APAC
ОфисMunich
ГибридBerlin Office
Nex employees may be expected to collaborate with colleagues across different time zones