Location: Bremen, Germany
Our mission
Constructor’s mission is to enable all educational organisations to provide high-quality digital education to 10x people with 10x efficiency.
With strong expertise in machine intelligence and data science, Constructor’s all-in-one platform for education and research addresses today’s pressing educational challenges: access inequality, tech clutter, and low engagement of students.
Please send your resume in English only.
Interns are NOT eligible for equipment and other benefits as the position is temporary.
The QA Intern at Constructor Tech will be responsible for executing manual test cases, identifying bugs, and ensuring software quality. This role involves assisting in the planning, designing, and execution of tests, documenting results, and supporting troubleshooting throughout the Testing Development Life Cycle. The intern will collaborate with QA, engineering, and product teams to enhance testing processes and contribute to software reliability.
Job Description
The QA Intern at Constructor Tech will support the quality assurance activities across our products by executing manual tests, validating new features, and helping ensure a high-quality user experience. This is an entry-level role designed to provide hands-on experience with real-world QA processes, tools, and collaboration within cross-functional teams. The intern will work closely with QA engineers, developers, and product managers throughout the software development lifecycle.
Responsibilities
Execute manual test cases for web and API-based applications
Validate new features, bug fixes, and regression scenarios before releases
Identify, document, and track defects clearly and accurately
Participate in requirement reviews and help identify test scenarios early
Support different testing phases: functional, regression, smoke, and exploratory testing
Verify fixes and ensure issues are resolved as expected
Assist in maintaining and improving test documentation and test case coverage
Collaborate closely with developers, product managers, and senior QA engineers
Learn and apply QA best practices, tools, and processes under mentorship
Requirements
Currently pursuing or recently completed a degree in IT, Computer Science, or a related field
Basic understanding of the software development life cycle (SDLC)
Interest in software quality, testing methodologies, and attention to detail
Ability to analyze requirements and think from an end-user perspective
Basic understanding of web applications and how they work (browser, APIs, etc.)
Familiarity with bug tracking or test management tools is a plus
Strong analytical and problem-solving skills
Willingness to learn, proactive attitude, and ability to follow guidance
Good communication skills and fluency in English
Nice to Have
Understanding of Agile / Scrum development processes
Basic knowledge of SQL or databases
Familiarity with REST APIs and tools like Postman
Experience with exploratory testing or usability testing
Exposure to version control systems (e.g., Git)
Experience working on team or university projects
What We Offer For Interns:
Internship Duration: from 2 months or more
Type of internship:
100% remote
or hybrid
in the office in Bremen (GER), Sofia (BG), Belgrade (SRB), Istanbul (TR), Sakarya (TR), Singapore (SGD)
What We Offer
💻 Choice of work equipment (e.g., laptop, monitor, etc.)
🇬🇧 English classes (iTalki – $130 monthly)
⏰ Flexible schedule (we usually work between 09:00/10:00 and 18:00/19:00)
👶 Newborn bonus (€500 per child)
🧠 Patent remuneration
🌴 Paid leave
🧑💻 Remote work in locations without our offices
Hybrid work in locations with offices (2 days in-office, 3 days remote)
Constructor
fosters equal opportunity for people of all backgrounds and identities. We are led by a gender-balanced board committed to building a diverse and inclusive organisation where everyone can become their best self. We do not discriminate based on age, disability, gender identity, sexual orientation, ethnicity, race, religion or belief, parental and family status, or other protected characteristics. We welcome applications from women, men and non-binary candidates of all ethnicities and socio-economic backgrounds. We encourage people belonging to underrepresented groups to apply.
СтажёрBremen, Germany; We welcome applications from women, men and non-binary candidates of all ethnicities and socio-economic backgrounds
Location: Bremen, Germany
Our mission
Constructor’s mission is to enable all educational organisations to provide high-quality digital education to 10x people with 10x efficiency.
With strong expertise in machine intelligence and data science, Constructor’s all-in-one platform for education and research addresses today’s pressing educational challenges: access inequality, tech clutter, and low engagement of students.
Please send your resume in English only.
Interns are NOT eligible for equipment and other benefits as the position is temporary.
The Reality
The frontier models are converging into commodities; the engine is no longer the differentiator. The scarcity in 2026 is not the model.
We are not looking for people to fine-tune Llama on toy datasets or write "better prompts." We are building the runtime systems that turn probabilistic token generation into reliable workers that finish 50-step tasks without spiraling. We are solving the math of multi-step reliability through engineering, not wishful thinking.
What You Will Solve
You will work on the
Agentic Harness
, treating the LLM as a component within a larger, deterministic control system. Your research will focus on:
Architecting loops that survive error accumulation. You will build verification layers that force the agent to recognize its own hallucinations and self-correct.
You will implement systems where the agent compiles its own constraints and the harness enforces them via constrained decoding or external execution.
You will optimise KV-cache hit rates and design "restorable compression" strategies to prevent attention decay.
Who We Are Looking For
We are looking for
systems thinkers
who happen to know ML, not the other way around.
You know that a demo is not a product. You are interested in the "boring" engineering: state machines, retries, idempotency, serialisation — that actually makes agents work.
You are comfortable working with the raw output of the model and building robust software in Python or Rust around it.
You understand why dynamic tool loading destroys inference economics. You prefer deterministic guardrails over "prompting it to be nicer."
You are willing to read a 500-line trace of a failed agent loop to find the exact moment the context drifted. You care about the "last mile" of reliability.
What We Offer For Interns:
Internship Duration: from 2 months or more
Type of internship:
100% remote
or hybrid
in the office in Bremen (GER), Sofia (BG), Belgrade (SRB), Istanbul (TR), Sakarya (TR), Singapore (SGD)
What We Offer
💻 Choice of work equipment (e.g., laptop, monitor, etc.)
🇬🇧 English classes (iTalki – $130 monthly)
⏰ Flexible schedule (we usually work between 09:00/10:00 and 18:00/19:00)
👶 Newborn bonus (€500 per child)
🧠 Patent remuneration
🌴 Paid leave
🧑💻 Remote work in locations without our offices
Hybrid work in locations with offices (2 days in-office, 3 days remote)
Constructor
fosters equal opportunity for people of all backgrounds and identities. We are led by a gender-balanced board committed to building a diverse and inclusive organisation where everyone can become their best self. We do not discriminate based on age, disability, gender identity, sexual orientation, ethnicity, race, religion or belief, parental and family status, or other protected characteristics. We welcome applications from women, men and non-binary candidates of all ethnicities and socio-economic backgrounds. We encourage people belonging to underrepresented groups to apply.
Location: Kent, Washington
Workplace: hybrid
IDT is looking for an experienced Direct Sales Representative. Bilingual professionals with fluency in both English and Spanish are preferred. The Sales Representative's role is to sell the company’s products and services to retail stores in his/her assigned territory . He/she will open new accounts, service existing accounts, obtain and fulfill orders, and ensure customer satisfaction by visiting these retail stores on a regular basis.
Responsibilities
Outside Sales Representative of Prepaid Telecom Products (phone cards), Money Transfer, Wireless Services
Open New Retail Doors and Service Existing Accounts
Achieve Increasing Sales Revenue Quotas Over Time
Serve as the lead point of contact for all customer needs
Build and maintain new existing accounts
Create and drive strong, long-lasting client relationships
Ensure the timely and successful delivery of our solutions according to customer needs and objectives
Requirements
Proven work experience as a Sales Representative, Account Executive, Key Account Manager, Sales Account Manager, Junior Account Manager or relevant role
Individual Must be Prepared to Go Door-to-Door Visiting Customers
Basic Computer Skills –Comfortable Using Tablet and Bluetooth Equipment
Demonstrable ability to communicate, present and influence key stakeholders at all levels of an organization
Proven ability to juggle and sell multiple products at a time, while maintaining sharp attention to detail
About us: IDT is a Communications and Money Transfer company founded in 1990 and headquartered in Newark, New Jersey. IDT is an industry leader in prepaid communication, money transfer, and payment services and one of the world's largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20+ countries, and have over $1.5 billion in revenues. Our flagship brand, Boss Revolution, includes Money Transfer, International Calling, and Mobile Top-Up services and supports IDT's mission of enabling people to keep in touch and share resources with family and friends worldwide. Join us!
Plus Commissions
ГибридKent, Washington
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Location: Bellevue, Washington
Workplace: hybrid
IDT is looking for an experienced Direct Sales Representative. Bilingual professionals with fluency in both English and Spanish are preferred. The Sales Representative's role is to sell the company’s products and services to retail stores in his/her assigned territory . He/she will open new accounts, service existing accounts, obtain and fulfill orders, and ensure customer satisfaction by visiting these retail stores on a regular basis.
Responsibilities
Outside Sales Representative of Prepaid Telecom Products (phone cards), Money Transfer, Wireless Services
Open New Retail Doors and Service Existing Accounts
Achieve Increasing Sales Revenue Quotas Over Time
Serve as the lead point of contact for all customer needs
Build and maintain new existing accounts
Create and drive strong, long-lasting client relationships
Ensure the timely and successful delivery of our solutions according to customer needs and objectives
Requirements
Proven work experience as a Sales Representative, Account Executive, Key Account Manager, Sales Account Manager, Junior Account Manager or relevant role
Individual Must be Prepared to Go Door-to-Door Visiting Customers
Basic Computer Skills –Comfortable Using Tablet and Bluetooth Equipment
Demonstrable ability to communicate, present and influence key stakeholders at all levels of an organization
Proven ability to juggle and sell multiple products at a time, while maintaining sharp attention to detail
About us: IDT is a Communications and Money Transfer company founded in 1990 and headquartered in Newark, New Jersey. IDT is an industry leader in prepaid communication, money transfer, and payment services and one of the world's largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20+ countries, and have over $1.5 billion in revenues. Our flagship brand, Boss Revolution, includes Money Transfer, International Calling, and Mobile Top-Up services and supports IDT's mission of enabling people to keep in touch and share resources with family and friends worldwide. Join us!
Plus Commissions
Location: Seattle, WA 98101
Workplace: hybrid
IDT is looking for an experienced Direct Sales Representative. Bilingual professionals with fluency in both English and Spanish are preferred. The Sales Representative's role is to sell the company’s products and services to retail stores in his/her assigned territory . He/she will open new accounts, service existing accounts, obtain and fulfill orders, and ensure customer satisfaction by visiting these retail stores on a regular basis.
Responsibilities
Outside Sales Representative of Prepaid Telecom Products (phone cards), Money Transfer, Wireless Services
Open New Retail Doors and Service Existing Accounts
Achieve Increasing Sales Revenue Quotas Over Time
Serve as the lead point of contact for all customer needs
Build and maintain new existing accounts
Create and drive strong, long-lasting client relationships
Ensure the timely and successful delivery of our solutions according to customer needs and objectives
Requirements
Proven work experience as a Sales Representative, Account Executive, Key Account Manager, Sales Account Manager, Junior Account Manager or relevant role
Individual Must be Prepared to Go Door-to-Door Visiting Customers
Basic Computer Skills –Comfortable Using Tablet and Bluetooth Equipment
Demonstrable ability to communicate, present and influence key stakeholders at all levels of an organization
Proven ability to juggle and sell multiple products at a time, while maintaining sharp attention to detail
About us: IDT is a Communications and Money Transfer company founded in 1990 and headquartered in Newark, New Jersey. IDT is an industry leader in prepaid communication, money transfer, and payment services and one of the world's largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20+ countries, and have over $1.5 billion in revenues. Our flagship brand, Boss Revolution, includes Money Transfer, International Calling, and Mobile Top-Up services and supports IDT's mission of enabling people to keep in touch and share resources with family and friends worldwide. Join us!
Plus Commission
Location: Paris; San Francisco; London; New York; Toronto; Montreal
Workplace: Remote
WHO ARE WE?
Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems.
We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that.
We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft.
We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us!
Role Overview:
Contribute in and provide strong support for model training pipelines, ship state of the art models to production, and bridge the gap between research and production. We have one of the highest ratio of compute to engineers in the world. We do not delineate strongly between engineering and research. Everyone will contribute to writing production code and supporting our research effort depending on individual interest and organizational needs. We have all the compute, data, and talent available for you to do your best work.
Please Note: We have offices in London, Paris, Toronto, San Francisco and New York but also embrace being remote-friendly! There are no restrictions on where you can be located for this role.
Key Responsibilities:
- Design and write high-performant and scalable software for training.
- Improve our training setup from an infrastructure and codebase performance standpoint.
- Craft and implement tools to speed up our training cycles and improve the overall efficacy of our training infrastructure
- Research, implement, and experiment with ideas on our supercompute and data infrastructure.
- Learn from and work with the best researchers in the field.
Qualifications:
- Extremely strong software engineering skills.
- Proficiency in Python and related ML frameworks such as JAX, Pytorch and XLA/MLIR.
- Experience with distributed training infrastructures (Kubernetes, Slurm) and associated frameworks (Ray)
- Experience using large-scale distributed training strategies.
- Hands on experience on training large model at scale and having contributed to the tooling and/or setup of the training infrastructure
- Bonus: paper at top-tier venues (such as NeurIPS, ICML, ICLR, AIStats, MLSys, JMLR, AAAI, Nature, COLING, ACL, EMNLP).
Working Location:
This role can be based remotely or from one of our office locations listed on the job description - there is no minimum in-office qualification requirement. We care most about hiring exceptional people regardless of locations, though please check the location listed on the posting for guidance around the core time zone or working hours alignment expected for the role.
FULL-TIME EMPLOYEES AT COHERE ENJOY THESE PERKS:
- A weekly lunch stipend of $75/£75 or equivalent in your local currency for lunch.
- Full health and dental benefits, including a separate budget for mental health.
- RRSP matching, 401K, Pension Scheme.
- 100% Parental Leave top-up for up to 6 months, for either parent.
- Annual enrichment benefits:
Arts & culture, fitness/wellness, quality time, and a workspace improvement credit.
Education & learning stipend for conferences, courses, and coaching.
- 6 weeks of paid vacation (30 working days!)
- Budget for traveling to other offices if you are remote, plus an annual company offsite.
HOW AND WHERE WE WORK:
- Cohere is remote-friendly, but we also have offices in Toronto, London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul with more opening soon.
- For those in the office: a daily lunch program, plenty of snacks, and regular community and social events.
- For those not near an office: a co-working benefit so you can work alongside others in your city.
- Everyone receives a $500 home office stipend to set up your workspace properly.
If any of the above doesn’t line up exactly with your experience, we still encourage you to apply.
We strive to create an inclusive work environment for all; we welcome applicants from all backgrounds and are committed to providing equal opportunities. Should you require any accommodations during the recruitment process, please submit an Accommodations Request Form https://docs.google.com/forms/d/12a6IrLdF3kI2nonKSr4tiFuz18rLQbaeYV-JM9L4o9Q/edit, and we will work together to meet your needs.
We may use AI-enabled tools to screen and assess applicants against the criteria for this position. This helps our recruiters identify potentially qualified candidates, but it doesn't limit the applications our recruiters may review or consider.
Beware of Scams: Cohere will never ask for payment or third-party services (e.g., CV writing) as part of our hiring process. All legitimate roles are listed on the Cohere careers page and LinkedIn only, with all communications from Cohere employees coming from an @cohere.com or @cw.cohere email alias. If jobs are viewed on other sites then please verify these through our official careers https://cohere.com/careers page.
Location: London; New York; Paris; Toronto; Montreal
Workplace: Hybrid
WHO ARE WE?
Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems.
We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that.
We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft.
We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us!
Role Overview:
As a Performance Engineer in the Pre-Training team you will be responsible for optimizing the performance of our advanced language models and systems. Their primary focus is on improving key model training metrics, such as training throughput, ensuring high accelerator utilization.
The team combines expertise in software engineering, machine learning, and low-level kernel design and development to design robust systems and enhance model performance. You will work on identifying and removing performance bottlenecks, develop cutting-edge training and profiling tools to help Cohere's mission of providing efficient and reliable language understanding and generation capabilities and drive innovation in the field of natural language processing.
Note: We have offices in London, Toronto, New York and San Francisco, but we’re also remote-friendly! This team operates primarily between ET to CET time zones, so we’re seeking candidates in locations that align with these hours for effective collaboration.
Key Responsibilities:
- Design and write high-performant and scalable software for training.
- Understand architectural modifications and design choices and their effects on training throughput and quality.
- Write low-level CUDA, triton kernels to squeeze every last bit of performance from our accelerators.
- Research, implement, and experiment with ideas on our supercompute and data infrastructure.
- Learn from and work with the best researchers in the field.
Qualifications:
- Extremely strong software engineering skills.
- Proficiency in Python and related ML frameworks such as JAX, Pytorch and XLA/MLIR.
- Experience writing kernels for GPUs using CUDA, triton, etc
- Experience using large-scale distributed training strategies.
- Familiarity with autoregressive sequence models, such as Transformers.
Bonus: paper at top-tier venues (such as NeurIPS, ICML, ICLR, AIStats, MLSys, JMLR, AAAI, Nature, COLING, ACL, EMNLP).
Working location:
This role can be based remotely or from one of our office locations listed on the job description - there is no minimum in-office qualification requirement. We care most about hiring exceptional people regardless of locations, though please check the location listed on the posting for guidance around the core time zone or working hours alignment expected for the role.
FULL-TIME EMPLOYEES AT COHERE ENJOY THESE PERKS:
- A weekly lunch stipend of $75/£75 or equivalent in your local currency for lunch.
- Full health and dental benefits, including a separate budget for mental health.
- RRSP matching, 401K, Pension Scheme.
- 100% Parental Leave top-up for up to 6 months, for either parent.
- Annual enrichment benefits:
Arts & culture, fitness/wellness, quality time, and a workspace improvement credit.
Education & learning stipend for conferences, courses, and coaching.
- 6 weeks of paid vacation (30 working days!)
- Budget for traveling to other offices if you are remote, plus an annual company offsite.
HOW AND WHERE WE WORK:
- Cohere is remote-friendly, but we also have offices in Toronto, London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul with more opening soon.
- For those in the office: a daily lunch program, plenty of snacks, and regular community and social events.
- For those not near an office: a co-working benefit so you can work alongside others in your city.
- Everyone receives a $500 home office stipend to set up your workspace properly.
If any of the above doesn’t line up exactly with your experience, we still encourage you to apply.
We strive to create an inclusive work environment for all; we welcome applicants from all backgrounds and are committed to providing equal opportunities. Should you require any accommodations during the recruitment process, please submit an Accommodations Request Form https://docs.google.com/forms/d/12a6IrLdF3kI2nonKSr4tiFuz18rLQbaeYV-JM9L4o9Q/edit, and we will work together to meet your needs.
We may use AI-enabled tools to screen and assess applicants against the criteria for this position. This helps our recruiters identify potentially qualified candidates, but it doesn't limit the applications our recruiters may review or consider.
Beware of Scams: Cohere will never ask for payment or third-party services (e.g., CV writing) as part of our hiring process. All legitimate roles are listed on the Cohere careers page and LinkedIn only, with all communications from Cohere employees coming from an @cohere.com or @cw.cohere email alias. If jobs are viewed on other sites then please verify these through our official careers https://cohere.com/careers page.
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.
About the Department
Renewals Account Managers, Customer Success Managers, Account Executives, Business Development Representatives, Solution Engineers, and Sales Operations - all working together help our customers adopt Cloudflare and create great Internet-enabled experiences.
The sales team at Cloudflare helps customers solve real, technical problems while creating the revenue streams that help the company provide free service to millions in our community.
Location: Lisbon, Portugal
What You’ll Do
The Customer Experience Manager leads the post-sale customer journey, managing everything from onboarding to long-term retention and contract renewals. Acting as both a trusted business advisor and a commercial owner of the account, you will build strategic relationships with stakeholders to clearly articulate ROI and business value and ultimately successfully close renewals maximizing upsells and minimizing churn. You will collaborate tightly with the Sales team to maintain accurate weekly forecasts and contribute to critical engagements like Executive Business Reviews. In addition, you will embed AI-driven optimization into your daily workflows—using advanced data analysis to uncover selling opportunities and automating routine tasks to accelerate customer outcomes and maximize operational efficiency.
Key Responsibilities
Customer Lifecycle & Success
Manage customer engagement across the entire customer lifecycle, from onboarding through renewal.
Be a Trusted Advisor to your customers by helping them adopt the Cloudflare products and services to meet their needs and make them successful
Work with your account teams to plan and execute long term Success Plans with our largest customers to facilitate retention and growth via product and new business unit expansion.
Maintain a deep understanding of our solutions and present to customers about the most relevant features/functionality for their specific business needs.
Own or be an active participant in several customer touch points including: Business Value Justification meetings, Business Reviews, and Renewal Meetings, with a track record of successful planning and execution of Executive Business Reviews.
Demonstrate how your customer engagement directly impacts revenue growth and adoption of Cloudflare solutions and services.
Commercial & Renewals
You are ultimately responsible for the retention and growth of your book of business.
You will own and drive the renewal including maintaining and reporting an accurate weekly forecast.
Negotiate and execute renewal contracts in accordance with customer objectives.
You will be an expert in deal construction and pricing strategy. You will directly be designing renewals to create a win-win for customers and Cloudflare.
Analyze data and leverage tools to identify selling opportunities and business value.
Drive strong alignment with the Sales team, contributing to team forecasting, planning, and targets.
Cross-Functional & Operational Management
Develop and maintain long-term relationships with stakeholders in your account portfolio.
Work cross-functionally with Product, Engineering, Support,Marketing and other teams to resolve customer business issues and work towards each customer’s stated goals.
Manage customer feedback and product needs by providing feature requests to internal partner teams.
Able to prioritize effectively to handle multiple deals at the same time.
AI Competencies
Generative AI: Mastery of LLMs to rapidly draft renewal communications, synthesize quarterly review data, and prepare executive summaries.
Data Analysis: Proficiency in leveraging AI analytics tools to parse customer usage metrics and instantly highlight up-sell or cross-sell opportunities.
Workflow Automation: Ability to build automations to synchronize CRM data, update weekly forecasts, and trigger lifecycle alerts.
AI Problem Solving: The instinct to view AI as a partner in solving tough problems to keep the Internet moving forward.
Qualifications
Minimum of 3 years of experience in a Customer Success/Account Management role or Inside or Field sales.
Fluency in German
2+ years of industry experience, with experience in cloud security and/or performance industries preferred.
Bachelor's degree and/or other professional qualifications.
Direct experience in commercial sales, negotiation, and deal closure.
Strong understanding of or willingness to learn about computer networking and “how the internet works,” with network security a plus.
Manage and prioritize competing portfolio demands, aligning internal resources with the highest-impact commercial and retention goals
Expertise in SaaS retention and sales process and excellent knowledge of value driven sales.
Excellent problem solving skills with the ability to creatively achieve resolutions.
Compensation
● For Portugal based hires: Estimated annual salary is between €42,000 - €57,000.
The final offer will be inclusive of time exemption, in alignment with the applicable law and collective bargaining agreements.
This role is eligible to earn incentive compensation under Cloudflare’s Sales Compensation Plan. The estimated annual salary range includes the on-target incentive compensation that may be attained in this role under the Sales Compensation Plan.
Equity
This role is eligible to participate in Cloudflare’s equity plan.
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: Spring Valley, NV
Workplace: hybrid
IDT is looking for an experienced Direct Sales Representative. Bilingual professionals with fluency in both English and Spanish are preferred. The Sales Representative's role is to sell the company’s products and services to retail stores in his/her assigned territory . He/she will open new accounts, service existing accounts, obtain and fulfill orders, and ensure customer satisfaction by visiting these retail stores on a regular basis.
Responsibilities
Outside Sales Representative of Prepaid Telecom Products (phone cards), Money Transfer, Wireless Services
Open New Retail Doors and Service Existing Accounts
Achieve Increasing Sales Revenue Quotas Over Time
Serve as the lead point of contact for all customer needs
Build and maintain new existing accounts
Create and drive strong, long-lasting client relationships
Ensure the timely and successful delivery of our solutions according to customer needs and objectives
Requirements
Proven work experience as a Sales Representative, Account Executive, Key Account Manager, Sales Account Manager, Junior Account Manager or relevant role
Individual Must be Prepared to Go Door-to-Door Visiting Customers
Basic Computer Skills –Comfortable Using Tablet and Bluetooth Equipment
Demonstrable ability to communicate, present and influence key stakeholders at all levels of an organization
Proven ability to juggle and sell multiple products at a time, while maintaining sharp attention to detail
About us: IDT is a Communications and Money Transfer company founded in 1990 and headquartered in Newark, New Jersey. IDT is an industry leader in prepaid communication, money transfer, and payment services and one of the world's largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20+ countries, and have over $1.5 billion in revenues. Our flagship brand, Boss Revolution, includes Money Transfer, International Calling, and Mobile Top-Up services and supports IDT's mission of enabling people to keep in touch and share resources with family and friends worldwide. Join us!
Location: North Las Vegas
Workplace: hybrid
IDT is looking for an experienced Direct Sales Representative. Bilingual professionals with fluency in both English and Spanish are preferred. The Sales Representative's role is to sell the company’s products and services to retail stores in his/her assigned territory . He/she will open new accounts, service existing accounts, obtain and fulfill orders, and ensure customer satisfaction by visiting these retail stores on a regular basis.
Responsibilities
Outside Sales Representative of Prepaid Telecom Products (phone cards), Money Transfer, Wireless Services
Open New Retail Doors and Service Existing Accounts
Achieve Increasing Sales Revenue Quotas Over Time
Serve as the lead point of contact for all customer needs
Build and maintain new existing accounts
Create and drive strong, long-lasting client relationships
Ensure the timely and successful delivery of our solutions according to customer needs and objectives
Requirements
Proven work experience as a Sales Representative, Account Executive, Key Account Manager, Sales Account Manager, Junior Account Manager or relevant role
Individual Must be Prepared to Go Door-to-Door Visiting Customers
Basic Computer Skills –Comfortable Using Tablet and Bluetooth Equipment
Demonstrable ability to communicate, present and influence key stakeholders at all levels of an organization
Proven ability to juggle and sell multiple products at a time, while maintaining sharp attention to detail
About us: IDT is a Communications and Money Transfer company founded in 1990 and headquartered in Newark, New Jersey. IDT is an industry leader in prepaid communication, money transfer, and payment services and one of the world's largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20+ countries, and have over $1.5 billion in revenues. Our flagship brand, Boss Revolution, includes Money Transfer, International Calling, and Mobile Top-Up services and supports IDT's mission of enabling people to keep in touch and share resources with family and friends worldwide. Join us!
Location: Henderson, NV
Workplace: hybrid
IDT is looking for an experienced Direct Sales Representative. Bilingual professionals with fluency in both English and Spanish are preferred. The Sales Representative's role is to sell the company’s products and services to retail stores in his/her assigned territory . He/she will open new accounts, service existing accounts, obtain and fulfill orders, and ensure customer satisfaction by visiting these retail stores on a regular basis.
Responsibilities
Outside Sales Representative of Prepaid Telecom Products (phone cards), Money Transfer, Wireless Services
Open New Retail Doors and Service Existing Accounts
Achieve Increasing Sales Revenue Quotas Over Time
Serve as the lead point of contact for all customer needs
Build and maintain new existing accounts
Create and drive strong, long-lasting client relationships
Ensure the timely and successful delivery of our solutions according to customer needs and objectives
Requirements
Proven work experience as a Sales Representative, Account Executive, Key Account Manager, Sales Account Manager, Junior Account Manager or relevant role
Individual Must be Prepared to Go Door-to-Door Visiting Customers
Basic Computer Skills –Comfortable Using Tablet and Bluetooth Equipment
Demonstrable ability to communicate, present and influence key stakeholders at all levels of an organization
Proven ability to juggle and sell multiple products at a time, while maintaining sharp attention to detail
About us: IDT is a Communications and Money Transfer company founded in 1990 and headquartered in Newark, New Jersey. IDT is an industry leader in prepaid communication, money transfer, and payment services and one of the world's largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20+ countries, and have over $1.5 billion in revenues. Our flagship brand, Boss Revolution, includes Money Transfer, International Calling, and Mobile Top-Up services and supports IDT's mission of enabling people to keep in touch and share resources with family and friends worldwide. Join us!
Location: Las Vegas, Nevada 88901
Workplace: hybrid
IDT is looking for an experienced Direct Sales Representative. Bilingual professionals with fluency in both English and Spanish are preferred. The Sales Representative's role is to sell the company’s products and services to retail stores in his/her assigned territory. He/she will open new accounts, service existing accounts, obtain and fulfill orders, and ensure customer satisfaction by visiting these retail stores on a regular basis.
Responsibilities
Outside Sales Representative of Prepaid Telecom Products (phone cards), Money Transfer, Wireless Services
Open New Retail Doors and Service Existing Accounts
Achieve Increasing Sales Revenue Quotas Over Time
Serve as the lead point of contact for all customer needs
Build and maintain new existing accounts
Create and drive strong, long-lasting client relationships
Ensure the timely and successful delivery of our solutions according to customer needs and objectives
Requirements
Proven work experience as a Sales Representative, Account Executive, Key Account Manager, Sales Account Manager, Junior Account Manager or relevant role
Individual Must be Prepared to Go Door-to-Door Visiting Customers
Basic Computer Skills –Comfortable Using Tablet and Bluetooth Equipment
Demonstrable ability to communicate, present and influence key stakeholders at all levels of an organization
Proven ability to juggle and sell multiple products at a time, while maintaining sharp attention to detail
About us: IDT is a Communications and Money Transfer company founded in 1990 and headquartered in Newark, New Jersey. IDT is an industry leader in prepaid communication, money transfer, and payment services and one of the world's largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20+ countries, and have over $1.5 billion in revenues. Our flagship brand, Boss Revolution, includes Money Transfer, International Calling, and Mobile Top-Up services and supports IDT's mission of enabling people to keep in touch and share resources with family and friends worldwide. Join us!
Location: Remote
Workplace: Remote
Blockstream https://blockstream.com/ was founded in 2014 by Dr. Adam Back https://en.wikipedia.org/wiki/Adam_Back and a group of fellow cryptographers and engineers who were passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly became one of the industry's leading technology powerhouses.
Blockstream is transforming traditional financial systems by equipping enterprises and consumers with Bitcoin-based solutions that enhance efficiency, security, and scalability. Our vision is to empower the world with tools that strengthen financial security, streamline everyday use, and unlock new opportunities for growth.
In pursuit of our expansive vision, we’ve built a full stack of innovative products on top of the Bitcoin protocol, from layer-2 projects like Liquid and Core Lightning, to end-user software and hardware wallets like Green and Jade. Our brand stands for innovation in the Bitcoin community, and we’re growing our team to accelerate the future.
As a QA Engineer, you will be responsible for designing, implementing, and executing test strategies to ensure the stability and performance of our Bitcoin and blockchain-based applications. You will work closely with developers, product managers, and devops engineers to identify issues early, automate testing processes, and maintain high-quality standards for our products.
What You Will Be Doing (Responsibilities):
- Develop and execute: test plans, test cases, and test scripts for blockchain-based applications and APIs.
- Design, implement, and maintain automated testing frameworks for functional, performance, and security testing.
- Conduct manual and automate testing of transactions, wallets, payment systems, and decentralized applications.
- Identity, document, and track defects using bug-tracking tools (e.g. Jira, GitHub).
- Collaborate with developers to conduct feature reviews and ensure testability of new features.
- Perform security testing to detect vulnerabilities in products.
- Work closely with DevOps to integrate testing into CI/CD pipelines, and optimize test execution in cloud-based environments.
- Conduct regression testing and maintain a robust suite of automated tests to prevent system failures.
- Research and implement test practices for blockchain and fintech QA methodologies.
What We Look For In You (Required Qualifications):
- 2+ years in software quality assurance; preferably in fintech, blockchain, or security-focused industries.
- Proficiency in automation testing frameworks.
- Strong understanding of Bitcoin and blockchain technology.
- Experience with API testing tools.
- Knowledge of scripting languages.
- Understanding of security testing methodologies, including penetration testing and vulnerability assessments.
- Experience with performance testing tools.
- Strong analytical and problem-solving skills.
- Ability to work in a fast-paced, remote-first, and collaborative environment.
- Excellent communication and documentation skills.
🔒 Stay Safe from Job Scams
All official Blockstream communication will come from an @blockstream.com email address. We will never ask you to share sensitive information or purchase equipment during the hiring process. If in doubt, contact us at hr@blockstream.com. Learn more about avoiding job scams here https://consumer.ftc.gov/consumer-alerts/2022/05/want-work-home-spot-scams-first.
Location: San Francisco, CA
Workplace: OnSite
ABOUT US
At LangChain, our mission is to enable every company to own its intelligence. We believe agents will transform how companies operate, and we're building the foundation to make that future possible. Our open-source harnesses and LangSmith platform give developers and enterprises the infrastructure to run, improve, and govern agents at scale.
We've raised $460M to date, with our most recent funding round valuing the company at $3B, backed by leading investors including Sequoia, Benchmark, IVP, and CapitalG. As we continue to expand our platform and tackle some of the hardest challenges in agent engineering, every team member has the opportunity to make a meaningful impact and help shape both our technology and the future of the industry.
More than 7,000 organizations rely on LangSmith, from fast-growing startups to Fortune 500 enterprises, including NVIDIA, Bridgewater, LinkedIn, Workday, and Rippling. We're just getting started on making high-performing agents easier to build and manage at scale.
About Us:
ABOUT THE ROLE
In person 5 days/week in San Francisco
We're looking for a Senior Fullstack Engineer for our commercial product LangSmith, an observability and evals platform. In this role, you'll have the opportunity to shape the technical direction of our platform while working closely with enterprise customers, developer end-users and internal stakeholders.
WHAT YOU WILL DO
- Lead the technical architecture and implementation of key product features for LangSmith, working across our entire Go, Python, and Typescript stack.
- Collaborate closely with product and design teams to iterate on new features.
- Mentor and guide more junior members of the team. Drive aggressive project timelines while ensuring high engineering standards are being met.
- Lead by example in writing clean, maintainable, and well-tested code
WHAT YOU BRING
- 5+ years of experience in software engineering working on complex platform products
- Fullstack engineering experience with Go or Python on the backend and React + Typescript on the frontend.
- Strong understanding of database systems, particularly Postgres and Redis
- Experience designing and scaling APIs, preferably in a high-performance, data-intensive application
- A “get stuff done” attitude - comfortable shipping fast and iterating based on user feedback
- Strong communicator with the ability to collaborate closely with various internal stakeholders and engage directly with our top-tier customers
- Strong ownership mindset
- Bonus: Experience with AI/LLM-powered applications, developer tools, or observability platforms
Compensation
- Annual salary range: $175,000-$240,000 USD
COMPENSATION PHILOSOPHY:
We offer competitive compensation that includes base salary, variable compensation for relevant roles, meaningful equity, benefits, and perks.
We are hiring for this role across a range of scope, and the compensation band reflects that. Your offer depends on what we learn about your impact, craft, leadership, and communication during the interview process. We will tell you early where you’re tracking and talk comp with you before offer stage. Team members in the EU, UK, and APAC receive locally competitive benefits aligned with regional norms and regulations.
BENEFITS
Benefits include medical, dental, and vision coverage, flexible vacation, a 401(k) plan, meals on in-office days in the US and more.
Location: Riviera Beach, United States; West Palm Beach, United States; Palm Beach Shores, United States; Lake Worth Beach, United States; Boca Raton, United States
Turn your passion for luxury into a career opportunity. Explore the world of premium brands and make a lasting impact in fashion, beauty, jewelry, or automobiles. Join CXG, the global leader in customer experience, and work alongside iconic brand names.
About the Role:
As a luxury brand evaluator, you will step into the world of luxury to discreetly assess customer experiences, providing critical feedback that helps brands refine their services. Whether visiting boutiques, purchasing online, or returning a product, your voice shapes the future of luxury.
• Flexibility - each in-store visit takes approximately 20 minutes, giving you the flexibility to complete multiple assignments.
• Frequent opportunities - perform several missions per month and collaborate with some of the most prestigious brands worldwide.
What you will be doing:
1. Choose your assignments - align your missions with your personal preferences and profile.
2. Visit luxury stores or evaluate online - engage with sales associates in the stores or online from the comfort of your home.
3. Observe carefully - check the ambiance, service quality, and overall customer experience.
4. Provide honest feedback - use our platform to share your observations through questionnaires.
Perks of the Role:
• Collaborate with iconic brands across industries.
• Flexible assignments tailored to your interests.
• Compensation for your time and input, with the potential for reimbursement on purchases.
• A user-friendly platform for managing missions and feedback.
How to Join the CXG Community:
1. Register: sign up at live.cxg.com and confirm your email.
2. Complete your profile: fill out your details to 100% and get verified.
3. Get certified: pass the General Certification to access missions.
4. Apply for missions: explore assignments with brands that excite you.
5. Start evaluating: begin making a difference in the luxury market.
Compensation:
• Non-Purchase Evaluations: Earn a fee based on mission complexity.
• Purchase-Based Evaluations: Reimbursement for approved items as stated in the mission brief.
About CXG
At CXG, we connect premium brands with over 80,000 evaluators across 70 countries. With 12 global offices and almost two decades of CX retail expertise, we’re committed to redefining the customer experience for luxury giants.
Join us and enjoy the flexibility of working on the go with our mobile platform, CXG Live. On this platform, you can seamlessly manage missions, certifications, and feedback.
Requirements
Must be 18 years or older.
Current customer of premium and luxury brands.
Not currently under contract with any retail brands, to ensure impartiality.
Punctual, organized, detail-oriented, and reliable.
Observant and passionate about customer experience.
No prior experience is required; we value honest feedback from genuine customers.
Location: Barcelona, Spain
Appodeal
is a dynamic US-based product company with a truly global presence.
We have offices in
Warsaw, Barcelona and Parkland (FL),
along with remote team members located around the world.
Our company thrives on diversity, collaboration, and innovation, making us a leader in the mobile app monetization space.
Why Appodeal?
At Appodeal, we’re more than just a company—we’re a team united by a common mission:
Help people discover and grow their talents through products that enable successful mobile app businesses!
We take pride in our cutting-edge product and our internationally dispersed team of talented professionals.
Here’s what we value, and what we hope you do too:
Seek the Truth and Say It with Care:
We find the truth together, and nobody owns it, the CEO included. Stories, perspectives and beliefs can be personal. Facts can’t.
Leverage Data to Build Product:
Our decisions start from data. We build systems rather than one-off tasks, use AI agents in our daily work and automate whatever is manual. When numbers don’t match, we fix them.
We Work Together to Serve Others:
No closed doors between teams. We share what we learn and win as one company first.
Insist on Higher Standards:
We don’t settle for “good enough”. We question it and push for better.
Passionate Curiosity Fuels Perseverance:
We ask “why”, take on ambiguous problems and keep going when they get hard.
Lean Startup Mentality: Start Small, Iterate Quickly:
Think big, ship an MVP first and learn fast. No big-bang releases.
Ownership and Accountability:
We work in small squads so each team owns its result end to end and has the freedom to get there. Go deep in your craft and wide enough to own the whole outcome. Escalate blockers early, admit mistakes, fix the damage and learn.
About the role
Our gaming business builds and scales a portfolio of casual, ad-monetized evergreen games (cards, words, puzzles, board games) from Barcelona. We’re rebuilding it as an
AI-native team
: instead of departments and management layers, we work in small squads, and each squad runs like a small studio that owns 1–3 games end to end: product, UA and monetization together. The reporting, coordination and analysis that used to need middle managers are handled by shared data and LTV models, AI agents and automation.
The model follows
"From Hierarchy to Intelligence"
by Jack Dorsey (Block) and Roelof Botha (Sequoia Capital), and uses a few simple roles:
Builder (IC):
everyone builds.
DRI (Directly Responsible Individual):
owns one result end to end, has real authority over the squad’s effort and picks the team. It’s a role, not a rank.
Player-coach:
sets the standard of a discipline for all squads and makes their expertise easy to reach. A coach is accountable for the standard and for being available, not for other people’s numbers or growth.
Advisor:
brings outside expertise without owning a result.
There’s no UA department in this model: UA specialists sit inside the squads and work with their squad’s DRI. What we need is senior UA judgment available to every squad and one clear UA standard across the portfolio. Eleven of our games run active UA, and UA is the biggest lever on our profit and growth today.
We’ll fill this seat in one of two ways:
In-house (Head of UA):
builder and UA Coach. Full-time in Barcelona, 4 days a week in the office. You run UA hands-on for 1–3 games inside one squad and set the UA standard for all squads.
Advisor (UA Coach):
not employment. You set and keep the UA standard and make UA expertise easy to reach for every squad. Scope and hours are agreed together.
Responsibilities:
As UA Coach (both formats):
Set and keep the UA playbook every squad works to: channel mix, bidding and budget rules, ROAS discipline and when to kill a campaign.
Own the creative testing framework, measurement and incrementality, and how we test new networks and DSPs.
Make UA expertise easy to reach: regular office hours with squad DRIs and UA specialists, campaign and creative reviews, written playbooks and worked examples, and introductions in the market where they help.
Speak up when a standard isn’t followed.
In-house, hands-on in one squad:
Run and optimize UA for 1–3 games yourself, as the reference for how UA is done here.
Turn data from our shared LTV and profit models into growth decisions, without a dedicated analyst.
Build agents and automation that take over UA work: bidding, reporting and creative production.
What this role is not:
Not a head of a UA department: there’s no team to manage. UA specialists report to their squad’s DRI.
Not accountable for squad or portfolio numbers: each squad’s DRI owns their result. You’re accountable for the UA standard and for being available.
Requirements:
7+ years in mobile user acquisition or growth marketing, including leadership roles, in ad-monetized casual evergreen games.
Hands-on experience running and optimizing campaigns across AppLovin, Meta, Google, DSPs and CPI networks.
You’ve scaled mobile games through performance marketing and kept them profitable.
Strong creative-driven UA: you’ve built a creative testing framework and know how to read its results.
Strong analytical mindset: you turn data from shared analytics and LTV models into growth decisions and are comfortable without in-house analysts.
AI-native: agents or automation you built that took over UA work (bidding, reporting, creative production), not only tools built by others.
You work both at the strategic level and in day-to-day execution, and can explain a standard so that people outside UA can apply it.
For the in-house format: ready to relocate to Barcelona and work from our office 4 days a week.
Nice to Haves:
Experience scaling games to the top-grossing charts.
Why Join Us?
UA is the biggest lever on our growth, and you’ll set how we use it across the whole portfolio.
You choose the format that suits you: full-time in Barcelona or as an advisor.
You’ll help shape how an AI-native games team works, with small squads that move fast and act on what you bring.
With an outstanding product and a mission that excites and inspires, Appodeal offers a unique opportunity to make an impact while being part of an amazing team.
Join us
and help shape the future of mobile app success!
Location: Remote - Europe
About Nebius:
Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure.
Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.
Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.
Application Security
The team is responsible for the security of Nebius's main public offerings : Compute, VPC, Managed K8s, Marketplace, Managed Soperator, and others. This includes building out the Secure
SDLC
, threat modeling, and vulnerability management platforms.
The Role
We are looking for an
Senior/Staff Application Security Engineer
who will ensure the security of our software by identifying and mitigating vulnerabilities, implementing best security practices, and collaborating with development teams. The ideal candidate will have a strong background in secure coding, threat modeling and building Secure SDLC.
What you will do
Build and maintain Application Security Posture Management (ASPM) at the Company scale.
Automate and support SAST, SCA tools, etc as part of CI/CD pipelines.
Improving SAST, secrets detection rules. Keeping false positive rate low.
Identify, analyze, and remediate application security vulnerabilities.
Collaborate with development teams to integrate security best practices into the software development lifecycle (SDLC).
Develop and maintain secure coding guidelines for development teams.
Conduct, run threat modeling and risk assessments for new and existing applications.
Provide development teams with instruments that facilitate security-related work like threat modelling, vulnerability detection, etc.
Stay updated on the latest security threats, vulnerabilities, and mitigation techniques.
Serve as an application security subject matter expert to other teams.
What we look for
6+ years of experience in application security.
Strong knowledge of common application security risks (e.g. OWASP Top 10) and how to mitigate them.
Experience with secure coding practices in languages such as Python, Go, Java, or JavaScript.
Proficiency in a common programming language (such as Go or Python) with a willingness to learn Go, if necessary.
Hands-on experience with security testing tools (Burp Suite, ZAP, Semgrep, etc.).
Understanding of authentication protocols like SAML or OIDC.
Experience in conducting threat-modeling sessions.
Bonus points
Confidence in presenting your ideas and opinions in a manner that can be challenged, while responding well to feedback.
Experience in designing, building, and maintaining security automation.
Experience in translating compliance and regulation requirements into technical specifications.
Experience in exploiting vulnerabilities in web applications, Linux kernels, containers, and networks.
Security certifications such as OSCP or OSWE.
Hiring process
Recruiter's chat (30mins)
Live-coding interview (60mins) to asses basic coding skills
Security interview (60mins) to asses domain expertise
Security System Design interview (90mins) to assess practical experience
(Optional) Technical deep dive (90mins) to present a complex and impact project.
Final interview to close the hiring process (45mins)
#LI-CP1
Benefits & Perks:
Competitive compensation
Career growth and learning opportunities
Flexibility and ownership
Collaborative and innovative culture
Opportunity to work on impactful AI projects
International environment and talented teams
What's it like to work at Nebius:
Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI
Equal Opportunity Statement:
Nebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by applicable law.
Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire.
If you need accommodations during the application process, please let us know.
Location: Cardiff, London or Remote (UK)
🚀 We’re on a mission to make money work for everyone.
We’re waving goodbye to the complicated and confusing ways of traditional banking.
After starting as a prepaid card, our product offering has grown a lot in the last 10 years in the UK. As well as
personal
and
business
bank accounts, we offer
joint accounts
,
accounts for 16-17 year olds
, a
free kids account
and
credit cards
in the UK, with more exciting things to come beyond. Our UK customers can also
save
,
invest
and
combine their pensions
with us.
With our hot coral cards and get-paid-early feature, combined with financial education on social media and our award winning customer service, we have a long history of creating magical moments for our customers!
We’re not about selling products - we want to solve problems and change lives through Monzo ❤️
📍London / UK Remote | 💰
Staff Backend Engineer (L60)
£130,000 - £170,000 + Equity +
Benefits
|
Technology
- Engineering
About our Engineering Teams:
We have around 650 engineers out of roughly 5,500 people in total - and we have big ambitions. There are many interesting challenges ahead, and we're happy for people to move between teams or to specialise, whatever you prefer. As an engineer here you'd be able to work directly with anyone across the company, and we run regular knowledge-sharing sessions so you’ll learn heaps about everything from how banks work to effective communication.
We contribute to
open source software
as much as possible. Our
blog
is a good place to learn even more about what we do!
What you’ll be working on:
We rely heavily on the following tools and technologies:
Go
to write our application code (there’s an excellent interactive Go tutorial
here
)
Cassandra
for most persistent data storage
Kafka
for our asynchronous message queue
Envoy Proxy
for RPC
Kubernetes
and
Docker
to schedule and run our services
AWS
for most of our infrastructure
React
for internal web dashboards
We also have two physical datacenter sites with actual cables to connect to various third parties
Your day-to-day
This role is all about collaborating across disciplines to test hypotheses and make a difference to customers. As a product backend engineer you’ll work in a squad alongside product managers, marketers, user researchers, designers, mobile engineers, web engineers, data analysts, business analysts, writers and more!
Together you'll build and support a particular part of Monzo. Our squads belong to our wider collectives (a word we use to describe self-governing business units of ~100 people). Our collectives are doing innovative work, many of which have machine learning and AI at the forefront - from fighting financial crime to building smarter financial tools - and you may have the opportunity to join a collective that gives you direct exposure to this exciting space.
Our backend engineers have a variety of different backgrounds. As long as you enjoy learning new things, we’d love to talk to you. We do not ask for formal qualifications or degree requirements for any of our engineering roles.
How we work 💻
Locations & Flexible Working:
Our main tech hub is in London, but our engineers live everywhere in the UK— from Brighton to the Western Isles.
We value meeting in person but we don't have a mandated requirement on office attendance, even if you're nearby. We believe you'll do your best work if you are where you want to be. If you live outside of London and we ask you to come into the office, Monzo will support you with the costs. ✨
Our offices are naturally social, especially Tuesdays, Wednesdays and Thursdays, which happen to line up with our twice-weekly Monzo lunches & treat Thursdays 🍽️. Teams also schedule time together often for work and play – in or around the office, or online.
Set up a work schedule that delivers impact and fits your life:
At Monzo, we value connections, flexibility, and wellbeing. We keep our meetings during core hours to stay connected and believe in maintaining work/life balance.
You’ll be empowered to manage your work in a way that suits you and your team, giving you the freedom for children drop-offs and pick-ups, walking your dog or adventurous cat, avoiding peak commuting times or gym slots, appointments, or supporting your family in an emergency. 🕒✨
If you prefer to work part-time, we'll make this happen whenever we can - whether this is to help you meet other commitments or strike a great work-life balance.
Work the way that works for you with Monzo! 💼
You should apply if:
you have strong experience working on the backend of a technology product
you want to be involved in building a product that you (and the people you know) use every day
you have a product mindset: you care about customer outcomes and you want to make data-informed decisions
you’re comfortable working in a team that deals with ambiguity
you’re interested in distributed systems and writing resilient software
you have some experience with strongly-typed languages (Go, Java, C, Scala etc.).
you think you’d enjoy the kind of work we’re doing
We're on the look out for L60 Engineers at the moment, you can read more in our
Engineering Progression Framework
we are also hiring on L40 & L50, our interview process will determine your levelling.
The Interview Process:
Our interview process involves three main stages:
Initial Call
Take home task or pair coding exercise
Final interview including a system design and a behavioural interview
Our average process takes around 2-3 weeks but we will always work around your availability.
One of our engineers has written a detailed blog on their experience through this process, for extra details, hints and tips please see
here
.
What’s in it for you:
💰 £130,000 - £170,000 + Equity
✈️We can help you relocate to the UK
✅ We can sponsor visas.
📍This role can be based in our London office or remotely across the UK (with ad hoc meetings in London).
⏰We offer flexible working hours and trust you to work enough hours to do your job well, at times that suit you and your team.
📚
Learning budget of £1,000 a year for books, training courses and conferences
➕And much more, see our full list of benefits
here
We're usually always hiring for Backend Engineers, so there's no closing date for this job.
#LI-Remote
#LI-HJ1
Equal opportunities for everyone
Diversity and inclusion are a priority for us and we’re making sure we have lots of support for all of our people to grow at Monzo. At Monzo, we’re embracing diversity by fostering an inclusive environment for all people to do the best work of their lives with us. This is integral to our mission of making money work for everyone. You can read more in our
blog
, 2026
Diversity and Inclusion Report
and 2025
Gender Pay Gap Report.
We’re an equal opportunity employer. All applicants will be considered for employment without attention to age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, or veteran, neurodiversity or disability status.
If you have a preferred name, please use it to apply. We don't need full or birth names at application stage 😊
СтажёрBremen, Germany; We welcome applications from women, men and non-binary candidates of all ethnicities and socio-economic backgrounds
УдалённоParis; San Francisco; London; New York; Toronto; Montreal; We care most about hiring exceptional people regardless of locations, though please check the location listed on the posting for guidance around the core time zone or working hours alignment expected for the role; We strive to create an inclusive work environment for all; we welcome applicants from all backgrounds and are committed to providing equal opportunities
ГибридLondon; New York; Paris; Toronto; Montreal; This team operates primarily between ET to CET time zones, so we’re seeking candidates in locations that align with these hours for effective collaboration; We care most about hiring exceptional people regardless of locations, though please check the location listed on the posting for guidance around the core time zone or working hours alignment expected for the role; We strive to create an inclusive work environment for all; we welcome applicants from all backgrounds and are committed to providing equal opportunities
Hybrid
УдалённоГеография найма не уточнена
ОфисseniorSan Francisco, CA
УдалённоRiviera Beach, United States; West Palm Beach, United States; Palm Beach Shores, United States; Lake Worth Beach, United States; Boca Raton, United States
headBarcelona, Spain
УдалённоseniorRemote - Europe
Cardiff, London or Remote (UK); We value meeting in person but we don't have a mandated requirement on office attendance, even if you're nearby