Location: Waltham, United States; Santa Barbara, United States
ABOUT THE JOB
We are looking for an experienced EEE Parts Engineer to join us on a contract basis, owning parts engineering across one or more hardware programs for the duration of the engagement. In this role, you will work with Electrical Engineers to select and qualify parts for new designs, with Quality Engineers to define screening, inspection, and test requirements, and with Supply Chain to select and monitor part suppliers. You will build and maintain parts lists and screening plans, review contractual and customer requirements for parts impacts, shepherd nonstandard parts through internal and customer approval processes, and support root-cause investigations when parts fail during test. This role requires both deep technical knowledge of EEE parts and the collaboration skills to work effectively across engineering, quality, and program disciplines.
This is a contract position with a defined period of performance. Contract duration and any extension options will be discussed during the hiring process.
WHAT YOU'LL DO
•
Parts Selection & Screening Plans:
Develop and maintain the program's parts selection and screening plan, defining acceptable part classes, screening levels, and qualification requirements for EEE parts used in the design.
•
Parts List & Baseline Management:
Build and maintain a master parts list (preferred/approved parts list) tracking manufacturer, part number, screening level, qualification status, and approved alternates for every part used, including obsolescence and lifecycle tracking.
•
Requirements Flow-down:
Review statements of work, specifications, and contractual documents to identify EEE parts requirements, and flow those requirements down to design teams and suppliers alongside viable alternative part solutions.
•
Supply Source Selection:
Support evaluation of component manufacturers and distributors for quality, reliability, and supply-chain integrity, including authorized distribution and anti-counterfeiting controls.
•
Nonstandard Part Approval:
Prepare and submit nonstandard part approval data packages (qualification data, manufacturer reliability data, process-change evaluations), and present/defend them to an internal or customer parts control board.
•
Part Qualification & Test Data Review:
Review incoming part test data and qualification reports against program requirements, including oversight of Destructive Physical Analysis (DPA) lot-sample teardowns and Prohibited/Restricted Materials Analysis (PMA) dispositions.
•
Failure Analysis & Corrective Action:
Support investigation of EEE parts that fail incoming screening, board-level test, or system-level test; interface with failure analysis labs to determine root cause and drive corrective action.
•
Obsolescence & Advisory Monitoring:
Monitor industry alert/advisory systems (e.g., GIDEP) for notices affecting parts used on the program, and assess and disposition the impact on existing designs, inventory, and in-process procurements.
•
Cost & Schedule Support:
Estimate and track the cost and schedule impact of parts screening, qualification, and procurement activities, and support proposal efforts with EEE parts cost, risk, and schedule inputs.
REQUIRED QUALIFICATIONS
•
Education:
Bachelor's degree in Electrical Engineering or a related technical field, with approximately 5 years of applicable industry experience (or a Master's degree with approximately 3 years).
•
EEE Parts Knowledge:
Strong working knowledge of EEE parts, including hermetic devices and plastic encapsulated devices, and the industry standards and military specifications that govern them.
•
Screening & Qualification Standards:
Familiarity with MIL-STD-883 and MIL-STD-750 (test methods) and MIL-PRF-38534/-38535/-19500 (hybrid, integrated circuit, and semiconductor device specifications).
•
DPA & Failure Analysis:
Experience with or working knowledge of Destructive Physical Analysis (MIL-STD-1580) and interfacing with part failure analysis labs to support root-cause investigations.
•
Communication:
Ability to produce clear, concise written and verbal technical reports for engineering teams, management, and customers.
•
Cross-Functional Collaboration:
Demonstrated ability to work effectively across Electrical Engineering, Quality Engineering, Supply Chain, and Program Management.
•
Availability:
Ability to begin the contract engagement promptly and commit to the expected period of performance.
•
Export Control:
U.S. Person status is typically required for roles accessing export-controlled data; eligibility to obtain and maintain a security clearance may also be required depending on program.
PREFERRED QUALIFICATIONS
• Familiarity with MIL-PRF-55681, MIL-PRF-55342, and MIL-PRF-55310 (chip capacitor and resistor specifications).
• Experience monitoring and dispositioning GIDEP (Government-Industry Data Exchange Program) alerts and advisories.
• Experience performing or reviewing Prohibited/Restricted Materials Analysis (PMA), including tin-whisker and wire-bond material risk assessment.
• Experience supporting part qualification for space, launch vehicle, or other harsh-environment defense programs.
• Experience preparing data packages for, or presenting to, an internal or customer parts control board.
• Experience supporting Material Review Board (MRB) disposition of nonconforming parts and materials.
• Prior experience working in a contract or consulting capacity within aerospace and defense environments.
Salary: $75 – $80 / hour
Location: London, United Kingdom - Deliveroo
Our Global Structure
Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team.
About the Company
Help us build the world's most reliable, on-demand logistics engine for last-mile delivery! We're bringing on experienced engineers to help us create and maintain a 24x7, no downtime, global infrastructure system that powers the company’s three-sided marketplace of consumers, merchants, and riders.
About the Role
We are looking for experienced engineers to join the EU Traffic team, based at Deliveroo, part of DoorDash, and help build the next generation of DoorDash’s Traffic platform. We are building a single, shared platform designed to serve DoorDash, Deliveroo, and Wolt, so your work will shape reliability and security for all three marketplaces. Our team owns the infrastructure that carries every request into and through that platform: the edge, where we manage Cloudflare (CDN, DNS, rate limiting, bot mitigation) and the ingress systems for external traffic, and service-to-service (S2S) communication, where we run the service mesh and the authentication that secures calls between thousands of services across multiple regions.
You will work on core components of our traffic stack, including our Cloudflare edge configuration (managed as code), and service-to-service authentication and authorization (workload identity, token issuance and validation at the mesh layer). This role sits at the intersection of distributed systems, networking, and security. It includes designing, building, and maintaining systems that must operate reliably and efficiently across some of the most critical and latency-sensitive workloads at DoorDash, from the first byte at the edge to the last hop between services.
You will report to the Engineering Manager of the EU-Traffic Team within the Infrastructure organization. This role is hybrid working from London.
You’re excited about this opportunity because you will…
Design and build large-scale distributed systems that are high RPS and latency sensitive
Troubleshoot, debug, and fix issues that affect production and maintain our SLAs
Work collaboratively with other platform and product engineers to deliver on feature requests and solve their problems
Find ways to improve the team’s productivity and operational capabilities through the use of automation, AI tools, and other avenues
Participate in a shared on-call rotation and help lead production investigations and incidents, with support from teammates
Mentor and learn from teammates through design reviews, pairing, and incident reviews
We’re excited about you because…
You have 5+ years of experience as a software engineer in infrastructure, networking, or platform engineering/SRE
Experience operating edge technologies at scale, such as CDN, WAF, proxy layers, and DNS
Solid understanding of networking fundamentals like TCP/IP, HTTP, HTTP/2, gRPC, Load Balancing
Background working on and debugging high-QPS or latency-sensitive systems
You’re curious, collaborative, and comfortable making progress in ambiguity
You work AI-first: you delegate to and orchestrate coding agents (e.g., Claude Code, Codex, Cursor) across design, implementation, testing, incident response, and releases
If you don’t meet every requirement but are excited about this work, we’d still love to hear from you.
Bonus points if you…
Experience with programming languages like Go, C++, Python or Rust
Experience with AWS, especially with networking primitives like LBs, Privatelink, etc. and Kubernetes or other container management tool
Experience with service mesh technologies such as Envoy, Istio or Linkerd
Familiarity with xDS or control plane architectures
Experience building RPC frameworks or client-side networking libraries
Experience with Infrastructure as Code tooling like Terraform
Experience with Gitops delivery tooling such as ArgoCD, Helm, Atlantis.
Track record of sharing prompts, tooling, and practices that make a whole team faster with AI
Diversity, Equity and Inclusion
At Deliveroo, we know that a great workplace reflects the world around us and that true diversity and inclusion make us stronger, more creative, and better at what we do. We’re committed to fostering an environment where everyone can do their best work and feel they belong.
We believe in equality of opportunity and welcome candidates from all backgrounds regardless of age, gender, ethnicity, disability, sexual orientation, gender identity, socio-economic background, religion, or belief.
If you have a disability or long-term health condition and need support to apply for one of our roles, or require any reasonable adjustments during the recruitment process, you’ll have the opportunity to let us know once you’ve submitted your application. We’ll share details on how to request support so we can ensure you have a fair and equitable experience.
If you’re excited about making a real impact in a fast-moving marketplace and growing your career alongside ambitious, supportive teams, we’d love to hear from you!
Beware of recruitment scams: DASH Brands will never ask you to pay money or share sensitive financial information during hiring — learn more about DASH Brands' legitimate recruiting process at
careersatdoordash.com/recruitment-scam-awareness
.
Location: Remote - United States
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit
www.redditinc.com
.
Team Description
The Ad Formats team builds and evolves Reddit’s ad experiences across all platforms and all format types, including image, video, carousel, shopping, etc.
The team defines how those ads behave across placements like feed, conversation, search, making sure each format works in the right surfaces and contexts across Reddit. The team supports the end-to-end user ad experience, including media rendering, click behavior, special click variants like lead gen, and the UI details that make promoted content feel native to Reddit while optimizing for advertiser's goals.
Within this area, the
Ad Formats Foundation
team owns the common infrastructure behind all ad formats, with a mission to improve developer efficiency, system reliability, and long-term scalability across the stack. We are responsible for modernizing core formats infrastructure, standardized format data, drive cross-platform consistency and compliance for ad formats to reduce bugs and allow the formats team to iterate quickly and improve the developer velocity.
Our goal is to continuously improve ad formats infrastructure, with a focus on increasing developer efficiency and system reliability through tech stack modernization, scalability investments, and compliance work.
Role Description
We’re looking for a senior frontend engineer with deep JavaScript, TypeScript, and browser platform expertise to help strengthen Reddit’s advertising experiences across desktop and mobile web. You will partner with product and design to work through ambiguous requirements and make sound product and engineering tradeoffs.
You’ll work closely with Ads and Web Platform engineers to solve complex frontend challenges while maintaining site performance, accessibility, and a dependable user experience. This role is a strong fit for someone who enjoys browser-level problem solving, navigating ambiguity, and building maintainable systems with measurable impact.
Responsibilities
Develop resilient frontend approaches to reduce ad disruptions, drawing on deep knowledge of JavaScript, TypeScript, HTML, CSS, the DOM, and browser networking.
Partner with Ads and Web Platform teams to integrate solutions into shared rendering infrastructure, frontend architecture, and build systems.
Design controlled experiments and phased rollouts to measure effectiveness while protecting site performance, accessibility, and user experience.
Build instrumentation and monitoring to track mitigation effectiveness, detect regressions, and guide iteration.
Implement ad rendering, event collection, click handling, browser extensions across multiple Ad formats.
Contribute to broader foundational improvements in web advertising reliability, performance, and measurement.
Raise engineering quality through thoughtful technical design, testing, code reviews, documentation, and mentorship.
Required Qualifications
5+ years of experience building production web applications with JavaScript, TypeScript, and/or React.
Comfort using Codex, Cursor, Claude, or comparable agentic coding tools in day-to-day software development.
A track record of independently delivering complex frontend projects from technical design through launch and iteration.
Sound judgment in frontend architecture, state management, component design, testing, and API integration.
Experience building polished user interfaces with close attention to usability, performance, accessibility, and maintainability.
Ability to work effectively through ambiguous product and technical problems.
Strong communication and collaboration skills across engineering, product, design, and data disciplines.
Experience using instrumentation, experimentation, or product metrics to understand and improve user experiences.
A habit of improving engineering quality through code reviews, documentation, and technical mentorship.
Bonus points
Experience working with various ad formats (video ads, display ads, etc)
Technologies used on the team include
JavaScript, Typescript and React
Modern frontend testing, experimentation, and observability tools
Benefits:
Comprehensive Healthcare Benefits and Income Replacement Programs
401k Match
Family Planning Support
Gender-Affirming Care
Mental Health & Coaching Benefits
Flexible Vacation & Reddit Global Days Off
Generous paid Parental Leave
Paid Volunteer time off
#li-remote
Pay Transparency:
This job posting may span more than one career level.
In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit
https://www.redditinc.com/careers/
.
To provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.
The base salary range for this position is:
$190,800
—
$267,100 USD
In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.
During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our
Candidate Privacy Policy for Potential Employees and Contractors
.
Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.
Location: London, United Kingdom
Our Global Structure
Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team.
About the Team
DoorDash’s mission is to grow and empower local economies. By building intelligent, last-mile delivery technology for local cities, DoorDash connects people with the local businesses they care about — helping grow businesses and the communities that support those businesses. At DoorDash, there are three audiences that are at the core of every decision we make - our Consumers, Merchants, and Couriers. The Research team has a direct link to uncover the unmet needs and pain points of each of these audiences. We bring their voices into the business in order to help set the strategic vision for all of DoorDash’s current and future products.
About the Role
We’re looking for a
Principal Researcher
to be a strategic research leader for EMEA, shaping what DoorDash builds next. You’ll combine deep expertise in qualitative and quantitative methods to find the unmet needs, behavioral shifts, and market openings that point to new products and new growth. You’ll work as a peer to senior product, design, engineering, data science, and business leaders, and your work will directly inform roadmaps, investment decisions, and company-level strategy.
This role is built for a seasoned researcher who is equally comfortable in a living room interview, a survey dataset, and a leadership review, and who uses AI as a daily tool to move faster and see further, without giving up the judgment that makes research trustworthy. You’ll also raise the bar for the wider research practice by mentoring researchers, sharing methods, and helping the team define what great looks like in an AI-enabled era.
What You’ll Be Doing
Shape Product Strategy:
Translate deep understanding of Consumers, Merchants, and Couriers into a clear point of view on where DoorDash should play and win. You’ll frame the highest-stakes questions, bring evidence to roadmap and investment debates, and influence decisions at the director and executive level.
Detect New Opportunities:
Proactively identify emerging needs, behavior changes, and white space that point to new products, new verticals, and new growth levers. You’ll size and validate opportunities with a mix of foundational discovery, market and competitive context, and behavioral data, and turn them into concepts teams can act on.
Lead Mixed-Methods Research:
Design and run rigorous research end to end, choosing the right method for the question: ethnography, in-depth interviews, diary studies, and usability testing alongside surveys, conjoint and MaxDiff, segmentation, experiment design, and behavioral and log analysis. You’ll triangulate across sources so the “what,” the “how much,” and the “why” tell one coherent story.
Partner with Data Science and Experimentation:
Work closely with data science and analytics to connect qualitative insight to A/B test design, metrics, and product outcomes, and to explain the “why” behind results. You’ll help teams learn from what worked, what didn’t, and what to test next.
Apply AI to the Research Craft:
Use AI tools and LLMs in your daily workflow for synthesis, analysis, survey and discussion guide design, and scaling qualitative depth, and design human-in-the-loop checks that catch confident but wrong outputs. You’ll help the team identify where AI accelerates research and where it should not be trusted, and contribute to shared prompts, workflows, and standards. You’ll also study how people experience AI-powered features across DoorDash’s products.
Influence and Communicate:
Tell compelling, decision-ready stories that move partners from insight to action. You’ll adapt depth and format to the moment, from a fast directional read that unblocks a team this week to a foundational body of work that anchors a multi-year strategy, and you’ll follow through to see that findings change what gets built.
Lead Through Others:
Serve as a thought partner and mentor to researchers across levels, review and elevate research quality, and help partners run good research on their own where that makes sense. You’ll help set the team’s research agenda, methods, and standards, and contribute to hiring and growing the team.
Operate Across Brands and Regions:
Bring a global lens to your work, partnering across brands, markets, and cultures and adapting approaches to local context so that insights scale beyond a single market.
What We’re Looking For
10+ years of experience in user, market, or product research at a technology company (or equivalent depth), with a track record of leading ambiguous, high-visibility work at staff level or above
Demonstrated impact on product strategy: examples where your research changed a roadmap, unlocked a new product or line of business, or redirected significant investment
Proven ability to detect and shape new product or growth opportunities, from early signal through validated concept
Expert command of both qualitative and quantitative methods, including interviews, ethnography, and usability testing as well as survey design, statistical analysis, and experimentation. Working knowledge of SQL, R, or Python for pulling and analyzing your own data is a plus
Hands-on experience using AI and LLMs in research (for example, synthesis, analysis, prototyping, or scaling qualitative work), with sound instincts about where they help and where they mislead. Experience researching AI-powered products is a plus
Experience in consumer, two-sided or multi-sided marketplace, logistics, commerce, or local services contexts is a plus
Exceptional storytelling and executive presence, with the ability to influence senior stakeholders without authority and build trust across product, design, engineering, data science, and business teams
A bias for speed and pragmatism: comfortable delivering directional insight quickly while knowing when a decision calls for deeper rigor
Experience mentoring or coaching researchers and raising the quality of a research practice
Advanced degree in HCI, Psychology, Sociology, Anthropology, Economics, Statistics, Survey Methodology, or a related field preferred, or equivalent practical experience
Why Join Us?
At Deliveroo, you’ll do work that matters, solving real-world problems in a three-sided marketplace that’s constantly evolving.
We’re food lovers, problem solvers, community builders and more, brought together by a shared drive to make things better. Working here you can expect to:
🔧
Solve meaningful problems at real scale
Work on a complex, always-on marketplace that impacts millions every day.
🌱
See your impact, fast
Ship, test and improve ideas quickly in a low-hierarchy, high-ownership environment.
🧠
Grow through challenge and ownership
Take on big, ambiguous problems and accelerate your career with strong support.
🌎
A culture built for builders
High standards, collaboration, flexible working and continuous learning.
💰
Share in the success you help create
Competitive salary and equity options, so you’re rewarded for the impact you make.
➡️ Want a deeper look at how we build? Check out our
Tech Blog
.
Diversity, Equity and Inclusion
At Deliveroo, we know that a great workplace reflects the world around us and that true diversity and inclusion make us stronger, more creative, and better at what we do. We’re committed to fostering an environment where everyone can do their best work and feel they belong.
We believe in equality of opportunity and welcome candidates from all backgrounds regardless of age, gender, ethnicity, disability, sexual orientation, gender identity, socio-economic background, religion, or belief.
If you have a disability or long-term health condition and need support to apply for one of our roles, or require any reasonable adjustments during the recruitment process, you’ll have the opportunity to let us know once you’ve submitted your application. We’ll share details on how to request support so we can ensure you have a fair and equitable experience.
If you’re excited about making a real impact in a fast-moving marketplace and growing your career alongside ambitious, supportive teams, we’d love to hear from you!
Beware of recruitment scams: DASH Brands will never ask you to pay money or share sensitive financial information during hiring — learn more about DASH Brands' legitimate recruiting process at
careersatdoordash.com/recruitment-scam-awareness
.
Location: London
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.
Sierra was co-founded by Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/ who first met while working together at Google over 20 years ago. Bret currently serves as Chairman of the Board of Open AI. Previously, he was co-CEO of Salesforce and CTO of Facebook. Clay spent 18 years at Google, where he most recently led Google Labs.
WHAT YOU’LL DO
- Design, build, and deliver enablement programs that drive productivity across our fast-growing European sales and sales engineering teams, including supporting new hire onboarding cohorts as they ramp in seat, in region.
- Use AI tools to create content faster, run AI-driven role-play and call coaching, and give sellers self-serve answers to their questions.
- Own training on the tools EMEA sellers and SEs use daily for account research, call prep, call recaps, pipeline updates, and drafting outreach and proposals.
- Teach sellers when to trust AI output, how to verify it, and how to handle customer data under EU privacy and regulatory requirements (GDPR, EU AI Act), so every seller can explain, demo, and stand behind how Sierra uses AI with customers.
- Create playbooks and programs, track adoption and impact (tool usage, time saved, ramp speed, deal velocity), and report results to EMEA and global sales leadership. Turn the best field practices into shared prompts, playbooks, and workflows for the global enablement team.
- Localize and launch global sales plays in EMEA (flagging any that don’t translate), collect field feedback for the global Programs Lead, and support regional launches with Sales Leadership and Marketing.
WHAT YOU’LL BRING
- 5+ years in sales enablement at a B2B software company, with exposure to both onboarding and plays
- Experience adapting centrally built programs for a regional audience
- Evidence of leadership: prior people management, or leading projects and mentoring others, and a genuine interest in leading a team
- Credibility with senior sales leaders and experienced sellers and SEs, and a strong facilitator
- Hands-on, daily use of AI tools in your own work, and experience teaching others to adopt new tools and change how they work
- Comfortable working independently with a team several hours behind you
EVEN BETTER…
- Experience in AI or enterprise software
- Additional European languages
- Experience as the first enablement hire in a region
- Experience hiring or building a team
- Experience running an AI fluency or AI tooling program for a sales team
- Familiarity with the EU AI Act or GDPR as they apply to how sales teams use AI
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
- Lunch, as well as delicious snacks and coffee to keep you energized when working onsite
- 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 employment type, 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 through the link on this page even if your experience doesn't precisely match the job description.
Sierra is a proud equal opportunity employer. All qualified applicants will receive consideration for employment without regard to any characteristic protected by applicable federal, state or local laws, including veteran status and disability status. Hiring decisions are made by people, based on merit. If you need a reasonable accommodation for a disability, a religious practice, pregnancy or any related condition at any point in the application or interview process, contact us at accommodations@sierra.ai. Requests are handled confidentially and do not affect your candidacy.
We will consider qualified applicants with arrest and conviction records in accordance with applicable fair chance laws.
Основные задачи Разработка инструментов для агентов и интеграций с корпоративными системами (1С, почта, файловые ресурсы). Обработка документов: договоры, счета, таблицы.
Location: Remote - United States
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit
www.redditinc.com
.
The opportunity
Build the machine learning capabilities that help advertisers understand what they could achieve on Reddit and make better investment decisions.
You will lead models that estimate how campaign outcomes could change with different budgets, bids, audiences, creative performance, or objectives. The work connects supply and demand forecasting, audience availability, response prediction, and marketplace simulation to help advertisers compare alternatives and recognize valuable opportunities they may be missing.
This is a hands-on technical leadership role with ownership of modeling direction, evaluation standards, and reusable production capabilities across advertiser planning and recommendations.
What you’ll do
Lead forecasting and scenario modeling.
Translate advertiser questions into models of delivery, reach, performance, and investment tradeoffs. Set technical direction and guide execution across the team.
Connect inventory, demand, and response.
Combine forecasts of available advertising opportunities, audience activity, marketplace competition, and predicted response to estimate achievable delivery and performance.
Estimate outcomes under alternative choices.
Develop models that account for changes in budget, bid, audience, and optimization objective, including interactions among these choices, auction dynamics, and campaign constraints.
Quantify unrealized opportunity.
Incorporate creative-performance estimates from partner teams to assess how stronger creative could have improved campaign results. Translate those inputs into potential gains in delivery, efficiency, or advertiser value.
Build models that generalize.
Apply probabilistic forecasting, multitask learning, transfer learning, hierarchical modeling, or related approaches to handle sparse segments, cold start, delayed feedback, and changing conditions.
Establish trustworthy comparisons.
Evaluate numerical accuracy, calibration, uncertainty, and cohort-level performance. Define supported scenarios and identify when additional evidence or experimentation is needed.
Close the learning loop.
Compare recorded predictions with mature outcomes, diagnose systematic errors, and validate scenario estimates through experiments and observed results.
Own production delivery and technical leadership.
Partner with engineers on reliable training, serving, monitoring, and iteration. Lead designs, mentor engineers, and collaborate with Product, Data Science, Ads Delivery, Audience, and Creative teams.
What we’re looking for
A track record of developing and shipping predictive ML systems in advertising, marketplaces, recommendations, search, demand forecasting, or similarly complex domains.
Strong foundations in statistical learning, probability, and optimization, with experience modeling large-scale behavioral or transactional data.
Depth in one or more relevant areas:
probabilistic or hierarchical forecasting, calibrated conversion/value prediction, multitask or transfer learning, delayed-feedback or survival modeling, or response modeling
.
Strong judgment in evaluation, including temporal validation, calibration, segment-level performance, and the assumptions required to estimate outcomes under changed conditions.
Experience addressing sparse observations, cold start, seasonality, distribution shift, selection bias, or partially observed labels.
Strong programming and software engineering skills, including experience building and operating production ML systems.
Demonstrated ability to lead ambiguous technical initiatives, make practical tradeoffs, and develop other engineers.
Preferred experience
Complementary depth in one or more of:
Demand, supply, and inventory forecasting:
Advertising inventory, marketplace demand, traffic, retail demand, or capacity forecasting. Relevant methods include probabilistic time-series models, hierarchical/global forecasting, external-signal modeling, and multi-horizon prediction.
Auction and investment modeling:
Auction simulation or replay, conditional win-rate and price models, bid/budget response curves, or constrained optimization.
Scenario evaluation:
Counterfactual or off-policy evaluation, sensitivity analysis, uncertainty propagation, or composition of multiple predictive models.
Reach and audience estimation:
Population and overlap estimation, probabilistic reach/frequency models, sampling correction, or saturation modeling.
Advanced predictive methods:
Mixture-of-experts, distributional or quantile prediction, temporal sequence models, or state-space models.
What success looks like
Accurate and calibrated forecasts across priority advertiser populations; credible comparisons of supported campaign alternatives; reusable capabilities across planning and recommendations; and evidence that advertisers identify valuable opportunities and make better investment decisions.
Benefits:
Comprehensive Healthcare Benefits and Income Replacement Programs
401k with Employer Match
Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
Family Planning Support
Gender-Affirming Care
Mental Health & Coaching Benefits
Flexible Vacation & Paid Volunteer Time Off
Generous Paid Parental Leave
#LI-AK1
Pay Transparency:
This job posting may span more than one career level.
In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit
https://www.redditinc.com/careers/
.
To provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.
The base salary range for this position is:
$230,000
—
$322,000 USD
In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.
During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our
Candidate Privacy Policy for Potential Employees and Contractors
.
Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.
Location: UK, London
Workplace: OnSite
Here at Humanoid, we believe in a future where robots amplify human potential. That’s why we’ve set out on a mission to build the world’s most capable, commercially-scalable, and safe humanoid robots. We’re bringing that mission to life with HMND‑01 - our rapidly developed humanoid platform being deployed in real industrial environments - and we’re growing the team to take it even further.
ABOUT THE ROLE
The Robotics Applied Research Lead establishes and leads Humanoid’s AI research and engineering function.
You decide which Physical AI data problems we work on, define how we test them, and stay directly involved in the most important technical work. You connect four areas that often sit apart:
1. Multimodal and embodied data
2. Transformer-based models and how data impacts robot policies
3. Rigorous offline and real-world evaluation of policies
4. Deployment of models in the data ecosystem
This is a player-coach role. In the first year, at least half of your time is direct technical work: designing models and experiments, reviewing or writing code, inspecting data, debugging training, examining failures, and reviewing robot rollouts.
You will also build a small research and engineering team. Add people only when the work requires them.
MANDATE
Turn Humanoid data and technical access into measurable advances in Physical AI systems.
You own the answers, and the evidence, to questions such as:
- Which model families should we train, adapt, or evaluate?
- Which data produces meaningful gains in robot performance?
- What coverage, sensors, annotations, and quality controls do the models require?
- Which offline measurements predict real-world robot performance?
- Where should we adapt existing open models rather than train from scratch?
- What should Humanoid build itself, and what should it reuse or obtain through partners?
WHAT YOU'LL DO
- Set the technical direction: Define a focused research and engineering roadmap. Select a small number of high-value bets with clear hypotheses, baselines, milestones, and stop criteria. Decide what we build, adapt, license, or access through partners. Drop work that no longer has a strong case. Likely scope includes vision-language-action models, multimodal Transformers, robot foundation models, action representation, imitation and reinforcement learning, world models, cross-embodiment transfer, data-efficient adaptation, and robot-policy evaluation.
- Own Transformer research and engineering: Design, adapt, train, and evaluate Transformer-based systems for embodied tasks. Make the architecture and training decisions yourself. Start from strong existing models and baselines. Train from scratch only when evidence supports the cost. Build or review the critical code.
- Connect models to data strategy: Define the data needed to train and evaluate the selected models. Specify sensors, modalities, annotations, mixtures, and quality controls. Measure the effect of data quality, diversity, and composition on model behavior. Distinguish data volume from data value. You set technical data requirements; you do not run annotation workforces or field collection.
- Own evaluation: Establish offline and real-world evaluation systems, baselines, held-out conditions, and release gates. Guard against leakage, overfitting, and weak success definitions. Compare offline metrics with real-robot outcomes. A benchmark score alone is not a successful result. The evaluation must support a decision.
- Move work onto physical systems: Take projects from problem definition through training, hardware integration, and real-world testing. Design safe test plans and staged deployment. Analyse failures across data, perception, model, control, hardware, and environment. Validate material claims on physical systems.
- Build a small technical team: Recruit a few complementary researchers and engineers. Lead architecture, experiment, code, and failure reviews. Keep the team focused on validated results, not paper count, benchmark theatre, or headcount.
- Represent the function and own responsible development: Explain the strategy to customers, partners, and investors. Convert customer needs into testable technical requirements. State uncertainty and limits clearly. Define safety constraints, supervision, and rollback paths for physical trials. Require reproducible evidence before making capability or safety claims.
WHAT WE'RE LOOKING FOR
- Deep, direct Transformer expertise: This is a hard requirement. You must have personally made material architecture or training decisions in one or more substantial Transformer-based systems, such as vision Transformers, VLMs, VLAs, multimodal foundation models, Decision Transformers, diffusion Transformers, video Transformers, world models, or Transformer-based perception, planning, or control. You should be able to explain, in detail, how you represented inputs and outputs, tokenized data, fused modalities, structured attention and temporal context, chose losses, built the data mixture, distributed and monitored training, diagnosed failures, and what you personally changed and why it affected task performance. Using hosted model APIs, prompting language models, or running an unchanged public training recipe does not meet this requirement.
- Physical AI or embodied-system experience: You have worked on machine learning for a system that perceives or acts in the physical world: robotics, autonomous vehicles, drones, industrial automation, manipulation, mobile robots, humanoids, wearable or egocentric systems, or similar. At least one substantial project progressed beyond an offline dataset into a real or operational physical system. Simulation-only experience is not sufficient unless you also owned credible sim-to-real transfer and physical validation.
- Hands-on technical ability: You write and review high-quality Python. You work directly with PyTorch or an equivalent framework. You can read unfamiliar model and training code, design and debug experiments, inspect failures and rollout traces, work with large multimodal datasets, and make informed decisions about compute, memory, latency, and cost.
- Technical leadership: You have set direction for important technical work: a research or engineering group, a major model or robotics programme, or a cross-functional project you owned. You have hired or mentored researchers or engineers, made architecture and resource decisions, stopped weak work, and taken a result into deployment. A management title is not required. Direct ownership is.
- Evaluation, communication, and judgment: You design held-out tests, run controlled comparisons, find leakage and confounds, and report results with appropriate uncertainty. You separate evidence from belief, state what remains unknown, and reduce broad research questions to testable work.
- Strong preference - Computer Vision: We are particularly interested in candidates who combine deep expertise in Transformer architectures with a strong background in computer vision. Relevant experience may include visual representation learning, vision-language models (VLMs), video and temporal modelling, object detection, segmentation, tracking, multi-view and egocentric vision, 3D and spatial reasoning, pose estimation, calibration, localisation, sensor fusion, or real-time vision systems.
- Education: A PhD in machine learning, computer vision, robotics, computer science or a related field is valuable but not required. An equivalent record of original model work, technical leadership, and real-system delivery is sufficient. We care more about what you personally designed, trained, tested, and deployed than about a specific degree or number of years.
NICE-TO-HAVE:
- Technical expertise: Experience with VLA or robotic foundation models, action generation, diffusion or flow-matching policies, imitation learning, reinforcement learning, world models, robotic manipulation, cross-embodiment training, sim-to-real transfer, distributed training, ROS 2, or safety-critical systems.
- Additional experience: Research publications, open-source contributions, early-stage company experience, or direct collaboration with technical customers and research partners.
WHAT WE OFFER
- Competitive equity: stock options with meaningful upside as we scale.
- 30+ paid days off, including 23 days of annual leave, all UK bank holidays, and additional company closure days (including Christmas–New Year shutdown).
- Private healthcare, including virtual and in-person care.
- Pension scheme with 8% total contribution (5% employee, 3% employer) on full earnings.
- Free daily breakfast, catered lunch, and snacks in-office.
- Work at the frontier - collaborate daily with world-class engineers, researchers, and product experts building the next generation of AI and humanoid robotics.
- Real ownership - direct access to founding leadership, meaningful input on product direction, and the ability to drive key initiatives from day one.
Location: Warszawa, Poland
Workplace: fully
We are looking for a Senior Java Developer:
🧾 Employment type: Full time
🌍 Candidate Location: Poland
🚀 Start: January
🧭 Planned Work Duration: Minimum 12 months
Please note that the candidate must be employed on a 0.125 FTE basis under a UoP (employment contract), with an additional service contract (B2B or mandate contract).
Payment terms: up to 60 days.
👥 Customer Description:
Our client is a global management consulting organization serving enterprises and public-sector organizations worldwide.
🧩 Project Description:
A global technology ecosystem supporting strategy-to-execution delivery across Generative AI, cloud transformation, and advanced analytics.
⚙️ Project Phase:
Ongoing
💡 Hard Skills / Must Have:
• 5+ years of professional software development experience
• Strong hands-on expertise in Java and Spring Boot
• Practical knowledge of AI tools for software development
• Ability to use AI tools for tasks beyond the primary technology stack
• Adaptability to different technologies and technical requirements
✨ Hard Skills / Nice to Have (Optional):
• Python scripting
• Next.js
• AWS Glue Jobs
• Generative AI and prompt engineering
📌 Responsibilities:
• Develop and maintain backend applications using Java and Spring Boot
• Design scalable and reliable software solutions
• Collaborate with distributed teams throughout the software development lifecycle
• Use AI tools to accelerate delivery and solve technical challenges
🧪 Technology Stack:
Java, Spring Boot, AI tools, Generative AI and prompt engineering
📞 Interview stages:
• English check (15 minutes)
• internal technical interview (1-1,5 hour)
• client interview (1 hour)
• client interview – cultural fit (45 minutes)
📝 Additional notes:
The candidate must be employed in company at 0.125 FTE under UoP (employment contract) and additionally under a service contract (B2B or mandate contract). Payment terms — up to 60 days. Work will be performed using client-provided equipment.
What we offer
Model: B2B contract with Bonapolia - one contract, one monthly invoice
Rate: negotiated per candidate seniority and client budget
Payment: monthly invoice, paid on the same schedule the client pays us (60 days)
Contract written under your country's law
We handle the client-side paperwork: MSA, NDA, invoicing
🏢
About Bonapolia
Bonapolia is a family-owned IT staff augmentation team based in Lisbon. We build engineering teams for product companies and IT consultancies across Europe and the US.
More at
bonapolia.com
📩 Ready to Join?
We look forward to receiving your application and welcoming you to our team!
Location: United States
ABOUT THE TEAM
The EEE Parts Engineer works cross-functionally in support of hardware programs across the company. You will partner closely with Electrical Engineers, Quality Engineers, Supply Chain, and Program Management to ensure that every electrical, electronic, and electromechanical (EEE) component used in flight and mission-critical hardware meets the reliability, screening, and quality requirements demanded by high-reliability aerospace and defense programs.
ABOUT THE JOB
We are looking for an experienced EEE Parts Engineer to join us on a contract basis, owning parts engineering across one or more hardware programs for the duration of the engagement. In this role, you will work with Electrical Engineers to select and qualify parts for new designs, with Quality Engineers to define screening, inspection, and test requirements, and with Supply Chain to select and monitor part suppliers. You will build and maintain parts lists and screening plans, review contractual and customer requirements for parts impacts, shepherd nonstandard parts through internal and customer approval processes, and support root-cause investigations when parts fail during test. This role requires both deep technical knowledge of EEE parts and the collaboration skills to work effectively across engineering, quality, and program disciplines.
This is a contract position with a defined period of performance. Contract duration and any extension options will be discussed during the hiring process.
WHAT YOU'LL DO
Parts Selection & Screening Plans: Develop and maintain the program's parts selection and screening plan, defining acceptable part classes, screening levels, and qualification requirements for EEE parts used in the design.
Parts List & Baseline Management: Build and maintain a master parts list (preferred/approved parts list) tracking manufacturer, part number, screening level, qualification status, and approved alternates for every part used, including obsolescence and lifecycle tracking.
Requirements Flow-down: Review statements of work, specifications, and contractual documents to identify EEE parts requirements, and flow those requirements down to design teams and suppliers alongside viable alternative part solutions.
Supply Source Selection: Support evaluation of component manufacturers and distributors for quality, reliability, and supply-chain integrity, including authorized distribution and anti-counterfeiting controls.
Nonstandard Part Approval: Prepare and submit nonstandard part approval data packages (qualification data, manufacturer reliability data, process-change evaluations), and present/defend them to an internal or customer parts control board.
Part Qualification & Test Data Review: Review incoming part test data and qualification reports against program requirements, including oversight of Destructive Physical Analysis (DPA) lot-sample teardowns and Prohibited/Restricted Materials Analysis (PMA) dispositions.
Failure Analysis & Corrective Action: Support investigation of EEE parts that fail incoming screening, board-level test, or system-level test; interface with failure analysis labs to determine root cause and drive corrective action.
Obsolescence & Advisory Monitoring: Monitor industry alert/advisory systems (e.g., GIDEP) for notices affecting parts used on the program, and assess and disposition the impact on existing designs, inventory, and in-process procurements.
Cost & Schedule Support: Estimate and track the cost and schedule impact of parts screening, qualification, and procurement activities, and support proposal efforts with EEE parts cost, risk, and schedule inputs.
REQUIRED QUALIFICATIONS
Education: Bachelor's degree in Electrical Engineering or a related technical field, with approximately 5 years of applicable industry experience (or a Master's degree with approximately 3 years).
EEE Parts Knowledge: Strong working knowledge of EEE parts, including hermetic devices and plastic encapsulated devices, and the industry standards and military specifications that govern them.
Screening & Qualification Standards: Familiarity with MIL-STD-883 and MIL-STD-750 (test methods) and MIL-PRF-38534/-38535/-19500 (hybrid, integrated circuit, and semiconductor device specifications).
DPA & Failure Analysis: Experience with or working knowledge of Destructive Physical Analysis (MIL-STD-1580) and interfacing with part failure analysis labs to support root-cause investigations.
Communication: Ability to produce clear, concise written and verbal technical reports for engineering teams, management, and customers.
Cross-Functional Collaboration: Demonstrated ability to work effectively across Electrical Engineering, Quality Engineering, Supply Chain, and Program Management.
Availability: Ability to begin the contract engagement promptly and commit to the expected period of performance.
Export Control: U.S. Person status is typically required for roles accessing export-controlled data; eligibility to obtain and maintain a security clearance may also be required depending on program.
PREFERRED QUALIFICATIONS
Familiarity with MIL-PRF-55681, MIL-PRF-55342, and MIL-PRF-55310 (chip capacitor and resistor specifications).
Experience monitoring and dispositioning GIDEP (Government-Industry Data Exchange Program) alerts and advisories.
Experience performing or reviewing Prohibited/Restricted Materials Analysis (PMA), including tin-whisker and wire-bond material risk assessment.
Experience supporting part qualification for space, launch vehicle, or other harsh-environment defense programs.
Experience preparing data packages for, or presenting to, an internal or customer parts control board.
Experience supporting Material Review Board (MRB) disposition of nonconforming parts and materials.
Prior experience working in a contract or consulting capacity within aerospace and defense environments.
Location: Spain; Portugal; Poland; Hungary; Czechia
Action1 is an autonomous patch management platform trusted by many Fortune 500 companies. Cloud-native, infinitely scalable, highly secure, and configurable in 5 minutes, it just works and is always free for the first 200 endpoints, with no functional limits. By pioneering autonomous OS and third-party application patching, Action1 helps organizations eliminate routine work, reduce ransomware and security risks, and protect the digital employee experience. It provides real-time vulnerability assessment and remediation across remote and on-site endpoints without requiring a VPN, while peer-to-peer patch distribution reduces bandwidth use on local networks.
In 2026, Action1 was recognized as the fastest-growing founder-led cybersecurity company in America on the Inc. 5000. Action1 is led by industry veterans Alex Vovk and Mike Walters, American entrepreneurs who founded Netwrix, which has grown into an industry-leading, multibillion-dollar cybersecurity company.
The Role
We are looking for a senior Applied AI Engineer to join Operations and improve how our business teams work. You will work directly with Support, Finance, Sales Ops, HR, IT, and Legal to turn repetitive tasks and disconnected workflows into reliable AI-powered tools and automations.
We build AI to solve real problems, not to follow hype or impress investors. You will investigate how work gets done, propose improvements, and own technical decisions and delivery. We expect you to take initiative, deliver useful results quickly, and improve solutions through short iterations and feedback.
What you’ll do
Work with teams to understand their workflows, find bottlenecks, and propose improvements. Agree process changes with the COO and relevant teams before implementation.
Build AI tools and automations that connect business systems and handle tasks such as document processing or ticket triage. Deliver working versions quickly and improve them through feedback.
Prioritize opportunities by time saved, error reduction, and risk. Measure whether solutions deliver those benefits, reduce costs, and are actually used.
Run and support what you build. Test AI outputs, keep integrations reliable as systems change, and manage failures, latency, and cost.
Protect customer and employee data through limited access, minimal exposure, and redaction before model calls. Work with IT and Security on safeguards, audit trails, and human review where needed.
Evaluate AI tools and vendors, and recommend when to use an existing solution versus building one.
Document workflows and runbooks, train teams to use the solutions, and help them identify and request further automations.
What we’re looking for
4+ years in operations engineering, business systems, automation, or a similar role, with 1+ years building production LLM or AI-enabled workflows.
Hands-on experience with workflow automation platforms and REST APIs, webhooks, JSON, and OAuth.
Strong working knowledge of prompt design, retrieval-augmented generation, and agent/tool-use patterns.
Proficiency in Python or JavaScript, and comfort with cloud services; AWS preferred.
Experience with at least one major business system, such as NetSuite, Salesforce or ServiceNow.
Ability to translate business needs into technical solutions and explain trade-offs to non-technical leaders.
Sound judgment and practical knowledge of AI security, privacy, and data governance, including least-privilege access, sensitive-data protection, data minimization, and approval controls for sensitive actions.
Nice to have
Experience with Microsoft 365 / Teams integrations and Microsoft Graph.
Background in finance, revenue, or support operations processes.
Familiarity with process mining, BI tools, or SQL.
Experience with SOC 2, ISO 27001, or similar compliance frameworks.
Relevant AWS, Azure, or security certifications.
Familiarity with IT management, RMM, or endpoint security concepts.
Experience shipping software with coding agents such as Claude Code or Codex, including harnesses, development loops, reusable skills, and context and specification management.
Hands-on ownership of production backend services/APIs, with practical database and container experience.
Systematic AI evaluation using datasets, metrics, baselines, reproducible experiments, and regression detection.
Deeper ML foundations, statistical experimentation, and model training or fine-tuning.
Experience with runtime isolation and sandboxing for sensitive execution.
What Success Looks Like
First 30 days:
Understand key workflows and systems, and deliver a prioritized automation backlog
First 90 days:
Ship 3-5 production automations or integrations with measured impact, and publish AI usage and data-handling standards
First year:
Establish a repeatable intake-to-deployment process, show clear gains in hours saved and error reduction, and make AI tooling a trusted part of daily operations
How We Measure Impact
Hours saved, cycle-time reduction, error and rework rates, automation reliability (uptime and failure rate), AI cost per task, and stakeholder satisfaction.
Benefits
Fully remote work with flexibility to support your work-life balance.
A collaborative environment that empowers you to own your domain and implement best practices.
Stable income, benefits, flexible working hours, and opportunities for career advancement.
Friendly, professional colleagues who are eager to support you and help you grow.
Engaging challenges and opportunities to make a meaningful impact.
Location: Remote - United States
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit
www.redditinc.com
.
The Infrastructure Engineering team
enables Reddit to deliver Reliability, Performance, and Efficiency, with a single opinionated technology stack. We empower Reddit developers by delivering a reliable, scalable, and automated foundation - unifying compute, seamless deployments, robust storage, and high-performance messaging to maximize developer velocity and system resilience.
This centralized role hires across several high-impact teams, including:
Messaging:
Delivers a reliable, performant, and efficient platform to support asynchronous communication across all products and services at Reddit.
Compute:
Provides a resilient, high-performance, and cost-effective abstraction layer that streamlines application deployment and execution management across systems.
Build & Deployment:
Builds platforms and developer tooling that enable engineers to build, test, and safely deploy software across Reddit’s infrastructure.
Consumer IAM:
Authentication, authorization, and account infrastructure services.
Core Systems & Libraries:
Builds the foundational services that power Reddit.
Security:
Builds software that improves the security and reliability of Reddit’s infrastructure.
GRC (Governance, Risk & Compliance):
Builds software and automation that help Reddit manage risk, monitor controls, and scale security and compliance programs.
What You’ll Do
Cross-Functional Product Architecture:
Partner closely with Product Management, Product Design, Data Science, and Client Engineers (iOS/Android/Web) to translate business and user needs into reliable, low-latency technical solutions.
End-to-End Delivery:
Own the full software lifecycle for major product initiatives from technical design docs and API contracts to development, testing, rollout, and observability.
Metrics & Experimentation-Led Engineering:
Design, build, and evaluate A/B experiments. Work with tools like BigQuery, HEX, or Firebase to analyze user behavior, conversion funnels, and retention loops to make data-backed engineering decisions.
API & System Performance:
Build and maintain scalable APIs (GraphQL, REST, gRPC) and distributed backend services optimized for client consumption and consumer UI performance.
Technical Rigor & Modern Tooling:
Establish engineering best practices, improve developer workflows, mentor teammates, and use modern, AI-integrated tools to ship high-quality products efficiently.
In your day-to-day, you will:
Steer: Work with the team to select, scope, and drive high leverage projects that align with Reddit’s goals.
Build: Execute on a strategy and create a more performant, more scalable, higher quality architecture around authentication, authorization and identity.
Amplify: Mentor, coach, and collaborate with other technical contributors
Collaborate: Work together with a variety of cross functional teams across Reddit Engineering.
Evolve: Learn and improve your own technical and non-technical abilities
Who you might be:
5+ years of experience building internet-scale software, preferably with a focus on machine learning storage infrastructure.
Software development experience in one or more general purpose programming languages; Golang, Python, C++, Java
Experience with essential cloud infrastructure (Kubernetes, IC/CD, AWS, GCP)
Hands-on experience implementing features, optimizations, and bug fixes to distributed messaging systems.
Excellent communication skills to collaborate with stakeholders in engineering, data science, machine learning, and product.
Degree in Computer Science or equivalent technical field.
Benefits:
Comprehensive Healthcare Benefits and Income Replacement Programs
401k with Employer Match
Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
Family Planning Support
Gender-Affirming Care
Mental Health & Coaching Benefits
Flexible Vacation & Paid Volunteer Time Off
Generous Paid Parental Leave
Pay Transparency:
This job posting may span more than one career level.
In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit
https://www.redditinc.com/careers/
.
To provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.
The base salary range for this position is:
$190,000
—
$267,000 USD
In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.
During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our
Candidate Privacy Policy for Potential Employees and Contractors
.
Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.
Location: Hybrid
About Us
At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.
At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in.
Available Location: San Francisco, CA
What you will do as a Customer Engineer
The Customer Engineer (CE) is the core driver of our technical go-to-market strategy: a trusted technical advisor and primary architect of the customer journey. You will bridge the gap between technical strategy and business value—guiding enterprise clients from initial pre-sales technical validation through onboarding, deployment architecture, and full lifecycle expansion. Sitting within the GTM organization and reporting to a Customer Engineering Leader, you will not hand off your customers once an initial agreement is reached. Instead, you will operate as a quota-carrying technologist, leveraging AI-augmented workflows to eliminate administrative toil so you can focus on high-value architectural design and driving measurable business outcomes across the entire customer journey.
Key Responsibilities
Technical Validation:
Partner closely with Account Executives to lead technical deep-dive discovery, capture business requirements, and map complex customer infrastructure - DNS, CDN, Zero Trust, Network Security, Workers - to fit-for-purpose Cloudflare architectures and bespoke solutions. . Define, scope, success criteria, and technical evaluations plans for Proof of Concepts (PoCs) and Technical Validations. Deliver tailored technical presentations, architectural diagrams, and demonstrations that show how Cloudflare solves specific performance, security, and reliability challenges. Proactively address complex technical objections, security compliance questions, and edge-case architectural requirements during the sales cycle. Take accountability for a suitable solution deployment strategy (Customer, Partner or Cloudflare Professional services) being an integral part of all proposals.
Customer Adoption & Value Realization:
Provide oversight to technical onboarding and implementation, but not execute the implementation, serving as the primary executive and engineering contact for the customer. Design structured migration and onboarding blueprints tailored to the customer’s environment (e.g. DNS migrations, Zero Trust rollouts, WAF tuning guidance), and act as the lead consultant for customer engineering teams, walking them step-by-step through configuration best practices. Partner with Account Executives to own discovery, demos, onboarding, technical health, risk, and expansion strategy. Proactively monitor customer health scores and telemetry to ensure rapid time-to-value, resolve integration bottlenecks, and reduce deployment risk.
Commercial Accountability & Expansion:
Carry a variable quota tied directly to new business acquisition and/or ongoing account growth. Be commercially accountable for ensuring deep platform adoption, retaining revenue, and identifying strategic cross-sell and up-sell opportunities based on product usage data. Lead technical Quarterly Business Reviews (QBRs) to translate platform capabilities into return on investment for C-level executives.
Trusted Advisory:
Act as a trusted technical advisor throughout the entire customer lifecycle, maintaining a continuous, deep relationship with key stakeholders from initial onboarding through maturity, renewal, and expansion. Provide thought partnership on architecture, AI control layers, security posture, and deployment confidence. Identify potential deployment risks or integration bottlenecks early, and provide remediation strategies to de-risk customer outcomes.
AI Orchestration & Workflow Automation:
Leverage AI agents, Large Language Models (LLMs), and internal platforms to automate routine tasks such as RFP/Security Questionnaire responses, sandbox provisioning, basic telemetry monitoring, and internal/external documentation, reclaiming your time for strategic customer advisory.
Education & Enablement:
Partner closely with the Enablement Team to design, build, and govern technical resources. Define, document, and educate both internal teams and customers on deliverables such as Standard Operating Procedures (SOPs), architectural best practices, and technical guides to continuously raise the technical baseline across the organization.
Minimum Qualifications
Experience: Experience in a customer-facing technical role, such as Solutions Engineering, Customer Engineering, Professional Services, Sales Engineering, Technical Account Management, or as a Forward Deployed Engineer (years of experience required will vary based on Associate, Senior, Staff, or Principal leveling).
Architectural Mindset: Ability to white-board, design, and articulate complex enterprise network and security architectures clearly.
Consultative & Advisory Skills: Excellent communication skills with the ability to translate deeply technical concepts into business outcomes for both hands-on engineers and C-level executives.
Commercial Mindset: Proven track record of operating in a quota-carrying or revenue-aligned environment, with a strong understanding of SaaS metrics, business value translation, and enterprise sales cycles.
Communication: Exceptional presentation and stakeholder management skills, capable of bridging the gap between deep technical implementation details and high-level C-suite business strategy.
Technical Breadth: We do not expect every candidate to be an expert in every domain. Qualified candidates will demonstrate depth in at least four of the technical areas below:
Internet fundamentals: Deep understanding of how the Internet works, including OSI Model layers 1–7, BGP, GRE, TCP/UDP, DNS (authoritative and recursive), HTTP(S), and SSL/TLS.
Security: Expertise in the security of Internet properties, including WAF, Bot Management, Firewalls, Rate Limiting, (M)TLS, Zero Trust, and SASE concepts.
Performance: Expertise in the performance of Internet properties, including speed, latency, caching, video streaming, HTTP/2, and TLS 1.3.
AI Proficiency: Familiarity with prompt engineering, AI-assisted scripting and log analysis, LLM utilization, and workflow automation to augment everyday CE workflows.
Coding/Scripting: Proficiency in Python, JavaScript, Bash, Lua, Go, or similar languages to write custom integration scripts, API connectors, and edge computing functions.
Developer Platform Fluency: Experience designing, building, deploying or scaling applications using RESTful/GraphQL APIs, SDKs, webhooks, and developer tooling in cloud-native environments. Familiarity with infrastructure-as-code (Terraform, Pulumi), CI/CD pipelines, and observability for developer-led deployments.
Strongly Preferred Qualifications (The "Good-to-Haves")
Technical Enablement: Track record of creating and delivering technical enablement - workshops, code samples, documentation, or developer onboarding - that accelerates customer adoption of complex platforms.
Applied AI Knowledge: Experience with LLM orchestration, Retrieval-Augmented Generation (RAG) architectures, and model-access controls.
Regulatory Knowledge: Understanding of regulatory requirements such as PCI DSS, HIPAA, and SOC 2.
Hyperscaler / Digital Native Background: Talent coming out of hyperscalers, digital natives, distributed systems environments, or startups is strongly valued for its deeper cloud fluency and advanced architecture depth.
Education
Undergraduate or graduate degree in Computer Science, Engineering, or a related field.
Travel
This role may require travel up to 20–50% to attend customer meetings, conferences, industry events, and in-person team collaboration.
Compensation
This role features a competitive base salary and a variable compensation structure tied directly to the successful execution of full-lifecycle commercial targets, including new business acquisition, ongoing adoption milestones, and overall account expansion. Compensation may be adjusted depending on work location.
For Bay Area based hires: Estimated annual salary of $214,000.00 - $336,000.00
Equity
This role is eligible to participate in Cloudflare’s equity plan.
Benefits
Cloudflare offers a complete package of benefits and programs to support you and your family. Our benefits programs can help you pay health care expenses, support caregiving, build capital for the future and make life a little easier and fun! The below is a description of our benefits for employees in the United States, and benefits may vary for employees based outside the U.S.
Health & Welfare Benefits
Medical/Rx Insurance
Dental Insurance
Vision Insurance
Flexible Spending Accounts
Commuter Spending Accounts
Fertility & Family Forming Benefits
On-demand mental health support and Employee Assistance Program
Global Travel Medical Insurance
Financial Benefits
Short and Long Term Disability Insurance
Life & Accident Insurance
401(k) Retirement Savings Plan
Employee Stock Participation Plan
Time Off
Flexible paid time off covering vacation and sick leave
Leave programs, including parental, pregnancy health, medical, and bereavement leave
What Makes Cloudflare Special?
We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.
Project Galileo
: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost.
Athenian Project
: In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states.
1.1.1.1
: We released
1.1.1.1
to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our
privacy commitment
and ensure that no user data is sold to advertisers or used to target consumers.
Sound like something you’d like to be a part of? We’d love to hear from you!
Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the Cloudflare Offices or Cloudflare Hubs. More details about this will be available at that stage of the interview process.
This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.
Cloudflare is proud to be an equal opportunity employer. We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness. All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual
race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law.
We are an AA/Veterans/Disabled Employer.
Cloudflare provides reasonable accommodations to qualified individuals with disabilities. Please tell us if you require a reasonable accommodation to apply for a job. Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment. If you require a reasonable accommodation to apply for a job, please contact us via e-mail at
hr@cloudflare.com
or via mail at 101 Townsend St. San Francisco, CA 94107.
Location: Remote - US
Who we are
At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to
hundreds of thousands of businesses
and empower millions of developers worldwide to craft personalized customer experiences.
Our dedication to
remote-first work
, and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands.
.
Hiring and how we work
We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions!
Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings.
.
See yourself at Twilio
Join the team as Twilio’s next Machine Learning Engineer, Customer Memory.
About the job
This position is needed to build and scale the pipelines that turn raw conversation data into structured, searchable customer memory, and the evaluation systems that keep that memory accurate as the product evolves.
You'll join the Conversation Memory team, which builds the memory layer behind Twilio's Conversational AI platform: the systems that extract what matters from millions of conversations, resolve it to the right customer, and retrieve it in milliseconds when an agent needs it. Memory that is wrong, stale, or crossed between customers is worse than no memory at all, so quality measurement is a first-class part of the work.
Responsibilities
In this role, you’ll:
Build the extraction pipeline that turns raw data into structured memory, tuning the LLM prompts and schemas that decide what an AI agent remembers about a customer and what it forgets.
Own the retrieval path that answers "what do we know about this person?" in milliseconds, working with embeddings, vector search, and ranking
Contribute to the eval systems that tell us whether memory is actually getting better, turning a fuzzy question of quality into benchmarks and regression gates that run before every change ships.
Diagnose production issues across the ingestion, extraction, and indexing path using logs, metrics, and traces.
Partner with Product and ML teams to translate customer problems into system changes and evaluation criteria.
Qualifications
Twilio values diverse experiences from all kinds of industries, and we encourage everyone who meets the required qualifications to apply. If your career is just starting or hasn't followed a traditional path, don't let that stop you from considering Twilio. We are always looking for people who will bring something new to the table!
Required:
Experience building backend services, and a demonstrated ability to pick up new languages, frameworks, and tools as the problem demands.
A curious approach to service management: ability to investigate how systems actually behave in production, and desire to continuously learn how to operate them with rigor and accountability.
Experience building or working with evaluation/quality-measurement systems, such as regression detection or quality metrics, or the desire to learn.
Solid grounding in observability practices: structured logging, metrics, and using them to debug distributed systems in production.
Fluency with AI-assisted dev tools (e.g. agents for code generation, review, debugging), applied with deliberate direction and critical thinking.
Desired:
Experience with Go and/or Python.
Experience with event-streaming systems (e.g. Kafka).
Experience building LLM-backed products.
Practical experience applying ML, e.g. building, evaluating, or productionizing models.
Location
This role will be remote, but is not eligible to be hired in San Francisco, CA, Oakland, CA, San Jose, CA, or the surrounding areas.
Travel
We prioritize connection and opportunities to build relationships with our customers and each other. For this role, you may be required to travel occasionally to participate in project or team in-person meetings.
What We Offer
Working at Twilio offers many benefits, including competitive pay, generous time off, ample parental and wellness leave, healthcare, a retirement savings program, and much more. Offerings vary by location.
Compensation
*Please note the salary range information provided applies only to candidates residing in California, Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, New Jersey, New York, Vermont, Washington D.C., and Washington State due to local requirements. Compensation for candidates in other locations will be discussed during the hiring process. Please note that hiring for this role is not restricted to the locations listed above.
The estimated pay ranges for this role are as follows:
Based in Colorado, Hawaii, Illinois, Maryland, Massachusetts, Minnesota, Vermont or Washington D.C. : $128,560 - $160,700
Based in New York, New Jersey, Washington State, or California (outside of the San Francisco Bay area): $136,000 - $170,000.
This role may be eligible to participate in Twilio’s equity plan and corporate bonus plan. All roles are generally eligible for the following benefits: health care insurance, 401(k) retirement account, paid sick time, paid personal time off, paid parental leave.
The successful candidate’s starting salary will be determined based on permissible, non-discriminatory factors such as skills, experience, and geographic location.
Application deadline information
Applications for this role are intended to be accepted until November 13, 2026 but may change based on business needs.
Twilio thinks big. Do you?
We like to solve problems, take initiative, pitch in when needed, and are always up for trying new things. That's why we seek out colleagues who embody our values — something we call
Twilio Magic
. Additionally, we empower employees to build
positive change in their communities
by supporting their volunteering and donation efforts.
So, if you're ready to unleash your full potential, do your best work, and be the best version of yourself, apply now! If this role isn't what you're looking for,
please consider other open positions.
.
Stay alert to recruitment fraud
We care about your safety. Scammers sometimes impersonate Twilio recruiters through fake job postings, emails, websites, or messages. Please ensure you are engaging with an official @
twilio.com
email address. We will never ask for payment, gift cards, cryptocurrency, or banking information during the recruiting process. We do not make job offers without a formal interview process or conduct interviews exclusively through text-based messaging apps.
.
Twilio is proud to be an equal opportunity employer.
We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Additionally, Twilio participates in the E-Verify program in certain locations, as required by law.
Waltham, United States; Santa Barbara, United States
United Kingdom - Remote
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London, United Kingdom - Deliveroo; We believe in equality of opportunity and welcome candidates from all backgrounds regardless of age, gender, ethnicity, disability, sexual orientation, gender identity, socio-economic background, religion, or belief
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