Задачи:
— Проектировать и развивать MCP-сервер: архитектуру, инструменты, схемы входных и выходных данных.
— Интегрировать MCP-сервер с API и внутренними сервисами DSP совместно с backend-командой.
— Реализовывать инструменты для работы с кампаниями, флайтами, объявлениями, креативами, таргетингами и лимитами.
— Давать ИИ доступ к статистике: показы, клики, CTR, VTR, охват, частота, качество трафика и другие показатели в разных разрезах.
— Делать инструменты понятными для моделей: точные описания, предсказуемые ответы, полезные сообщения об ошибках.
— Обеспечивать разграничение прав и изоляцию данных клиентов, аудит действий, подтверждение чувствительных изменений и защиту от повторного выполнения операций.
— Проверять полноценные сценарии работы ИИ с платформой: правильно ли выбраны инструменты, получены данные и выполнены изменения.
— Отвечать за тестирование, документацию, мониторинг и стабильность MCP-сервера в продакшене.
Примеры сценариев:
— «Покажи кампании, которые отстают от плана по открутке».
— «Сравни эффективность площадок и устройств за неделю».
— «Найди источники с низким VTR и подготовь предложения по отключению».
— «Подготовь изменение таргетингов, покажи разницу и примени после подтверждения».
— «Объясни, почему кампания не расходует бюджет, используя настройки и статистику».
Требования:
— Уверенный опыт backend-разработки на TypeScript / Node.js.
— Опыт проектирования API и интеграции нескольких сервисов.
— Практический опыт с MCP либо с инструментами для LLM: tool calling, структурированные ответы, агентные сценарии.
— Понимание авторизации, ролей доступа, валидации данных, идемпотентности и обработки ошибок.
— Умение работать с SQL, разбираться в чужом API и существующей бизнес-логике.
— Опыт тестирования, Docker и эксплуатации сервисов.
— Самостоятельность: способность разобраться в продуктовой задаче, предложить решение и довести его до работающего функционала.
Будет плюсом:
— Опыт запуска MCP-серверов в продакшене.
— Знание NestJS, Go, PostgreSQL, Redis и ClickHouse.
— Опыт разработки систем с несколькими клиентскими кабинетами и сложными правами доступа.
— Понимание рекламных платформ и метрик: DSP, SSP, RTB, VAST, CTR, VTR, CPM.
— Опыт защиты ИИ-интеграций от prompt injection и нежелательных действий.
Техническое окружение:
Backend платформы — NestJS и Go. Данные и инфраструктура — PostgreSQL, Redis, ClickHouse, Kafka, Docker/k8s. Frontend — React + TypeScript.
О роли:
Основной фокус — исключительно MCP-направление: его архитектура, функциональность и надёжность. Работа предполагает тесное взаимодействие с продуктовой и backend-командой и возможность влиять на то, как пользователи будут управлять рекламой через ИИ.
В отклике:
Расскажите о backend- и ИИ-интеграциях, которые вы разрабатывали. Если есть MCP-серверы или проекты с tool calling — приложите ссылку либо кратко опишите свою роль и решённые задачи.
Задачи:
— Проектировать, создавать и поддерживать надежные backend-сервисы для маркетинговых и growth-инициатив.
— Вести функции и инженерные проекты от этапа исследования и технического дизайна до доставки и поддержки в продакшене.
— Строить интеграции с внутренними и внешними платформами, обеспечивая надежные потоки данных и поддерживаемые интерфейсы.
— Определять и развивать архитектуры распределенных сервисов и событийно-ориентированных систем.
— Улучшать надежность, качество и операционное совершенство существующих сервисов.
— Сотрудничать с техническими и нетехническими заинтересованными сторонами для уточнения требований, коммуникации компромиссов и формирования приоритетов.
— Вносить вклад в высокий стандарт инженерии через тестирование, код-ревью, документацию и прагматичные технические решения.
— Поддерживать рост команды через парное программирование, обмен знаниями и наставничество менее опытных инженеров.
Требования:
— Опыт профессиональной backend-разработки не менее 5 лет.
— Сильный опыт работы с Go и экосистемой Go.
— Практический опыт с распределенными системами, микросервисами и событийно-ориентированной архитектурой.
— Опыт работы с платформами потоковой передачи событий и брокерами сообщений, такими как Kafka.
— Практический опыт DevOps-практик и CI/CD инструментов, например GitHub Actions или Argo CD.
— Опыт создания новых систем, а также поддержки и улучшения унаследованных сервисов.
— Глубокое понимание архитектуры ПО, границ сервисов, API, потоков данных, тестирования и эксплуатации в продакшене.
— Отличные навыки письменного и устного общения, способность объяснять технические концепции и компромиссы как техническим, так и нетехническим сторонам.
— Навыки управления заинтересованными сторонами и совместный подход к решению проблем.
— Сильное чувство ответственности и стремление писать чистый, поддерживаемый и тестируемый код.
— Любознательность и энтузиазм в решении значимых задач для пользователей и бизнеса.
Будет плюсом:
— Опыт в маркетинговых технологиях, growth, acquisition или рекламных платформах.
— Знакомство с React, TypeScript или Python.
— Опыт работы в финтехе или смежной отрасли.
Условия:
— Работа в офисе в Берлине с возможностью работать в международной команде.
— Hack Days каждые две недели и глобальные Hack Weeks для обучения и экспериментов.
— Приверженность разнообразию и инклюзии.
— Ежегодный бюджет на обучение и конференции в размере 2000 евро.
— Участие в программе VSOP с возможностью владения долей компании.
— Корпоративная пенсионная программа с софинансированием до 20%.
— 30-дневный саббатикал после 3 лет работы.
— Бонусы за рекомендации новых сотрудников.
— Дополнительные льготы, включая субсидии на спорт, помощь с детским садом, релокацию и субсидированные обеды.
Location: Boston, MA; New York, NY
Workplace: OnSite
ABOUT US
At LangChain, our mission is to make intelligent agents ubiquitous. We build the foundation for agent engineering in the real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale.
With $125M raised at Series B from IVP, Sequoia, Benchmark, CapitalG, and Sapphire Ventures, we’re at a stage where we’re continuing to develop new products, growth is accelerating, and all team members have meaningful impact on what we build and how we work together. LangChain is a place where your contributions can shape how this technology shows up in the real world.
Today, our platform includes LangSmith (Observability, Evaluation, Deployment, Fleet, and Sandboxes), our open source frameworks (LangChain, LangGraph, and Deep Agents), and the newly launched LangSmith Engine for autonomous agent improvement. We have 100M+ monthly open source downloads, 6,000+ active LangSmith customers, and 5 of the Fortune 10 use LangSmith in production (+ 35% of the Fortune 500 overall), including teams at Klarna, Clay, Coinbase, Workday, Lyft, Cloudflare, Harvey, Rippling, Vanta, LinkedIn, Monday.com, Nvidia, and Bridgewater.
ABOUT THE TEAM
The LangSmith team owns and builds LangChain's core platform for observability, evaluation, and production reliability of AI systems. From tracing and annotation to run rules, evaluations, and beyond, this team owns LangSmith end-to-end. If you want to define what great AI observability looks like at production scale, this is where that work gets done.
ABOUT THE ROLE
This role is based onsite in Boston, MA.
We are looking for a Senior Backend Engineer to join our growing engineering team in Boston. In this role you will be building the backend systems that power LangSmith, LangChain’s observability and evals platform. You will work on the core services that allow our customer's developer teams to monitor and evaluate their AI applications at scale. While the focus is on backend feature development, familiarity with fullstack or frontend engineering, performance tuning, and debugging production issues would be valuable.
WHAT YOU'LL DO:
- Design, develop, and maintain backend services and APIs to support LangSmith’s tracing, monitoring, and evaluation workflows.
- Collaborate on architectural decisions to ensure systems are performant and maintainable.
- Optimize storage and query performance for high-volume observability and evaluation data.
- Ensure system reliability through strong testing, monitoring, and alerting practices.
- Troubleshoot and resolve production issues, performing root-cause analysis and implementing long-term fixes.
- Create and maintain technical documentation, including system design and API references.
- Work closely with full-stack engineers, product managers, and product designers on rolling out new features.
WHAT YOU'LL BRING:
- 4+ years of professional experience in backend engineering working on highly complex products
- Proficiency in one or more backend languages/frameworks, ideally Python and/or Go
- Strong understanding of API design and building reliable data services.
- Experience with high-throughput, mission-critical systems.
- Demonstrated ability to optimize backend services for performance and reliability.
- Experience with database systems (Postgres, Redis, Clickhouse), and cloud platforms (AWS, GCP, Azure) would be a bonus.
- Strong communication skills, with the ability to collaborate cross-functionally.
- Customer centricity and ownership mentality
Annual salary range: $170,000- $235,000
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.
Задачи:
— Проектировать и строить backend-системы, которые являются чистыми, тестируемыми и эффективными.
— Архитектурно создавать масштабируемые API и инфраструктуру, способную обрабатывать высоконадежные и высоконагруженные требования.
— Вносить сильные мнения по тестированию, качеству и долгосрочной поддерживаемости в каждый проект.
— Решать сложные продуктовые задачи, глубоко анализируя потребности пользователей и поведение системы.
— Формировать инженерные практики и техническую культуру через сотрудничество и практическое лидерство.
Требования:
— Опыт работы backend-инженером от 5 до 7+ лет, предпочтительно 7+ лет.
— Владение как минимум одним backend-языком, таким как Node.js/TypeScript, Python, Go или Java; опыт с Node.js и TypeScript является большим плюсом.
— Опыт проектирования и архитектуры масштабируемой backend-инфраструктуры для высоконадежных или регулируемых сред, таких как финтех, платежи или идентификация.
— Опыт работы с реляционными базами данных (Postgres или MySQL).
— Опыт работы с очередями сообщений или событийно-ориентированными архитектурами (RabbitMQ, Kafka или аналогичные); знание паттернов Event Sourcing будет плюсом.
— Опыт развертывания и управления приложениями в контейнеризированных или облачных средах (Kubernetes, AWS или аналогичные).
— Сильное системное мышление, способность рассуждать о долгосрочных архитектурных последствиях, а не только о отдельных функциях.
— Умение ясно коммуницировать, разбирать сложность и тесно сотрудничать с командой.
— Комфорт в работе в условиях неопределенности и на ранних этапах развития, где практики активно формируются.
— Обязательное проживание в европейском часовом поясе.
Условия:
— Полностью удаленная работа с обязательным нахождением в европейском часовом поясе.
— Команда собирается лично периодически в течение года.
— Базовая годовая зарплата от 116000 до 146000 евро, без индивидуальных переговоров по зарплате.
— Визовая поддержка не предоставляется.
Location: Warsaw, Mazowieckie, Poland
X-FLOW
is a mobile game development company established in 2018. We gained recognition after the release of
Happy Color
, the most popular digital coloring book and one of the most successful ad-driven mobile apps in the world.
We are currently looking for a
Senior Backend Engineer (Go)
for our flagship project, Happy Color.
Key Responsibilities:
• Design and develop microservices in Go (REST/gRPC), public and internal APIs.
• Integrate with external services, develop contracts.
• Optimize performance, profiling, reduce latency, and scale systems.
• Design database schemas, perform migrations, indexing, and query optimization.
• Work with PostgreSQL/MySQL, Redis, Kafka/NATS and event-driven integrations.
• Implement and maintain CI/CD, cloud infrastructure (AWS) with Docker/Kubernetes.
• Ensure quality: writing tests (unit/integration/e2e), code reviews, automation of checks.
• Ensure observability and reliability: logging, metrics, alerting, tracing.
• Participate in architectural design, RFCs/ADRs.
Requirements:
• 3+ years of commercial development experience, including 3+ years with Golang.
• Proficient in Go: context handling, concurrency (goroutines/channels), profiling (pprof), gRPC/REST, generics, modularity.
• Strong understanding of backend architecture, API design, microservices, and distributed systems.
• Databases: PostgreSQL/MySQL, Redis; design, indexing, transactions.
• Queues/Buses: Kafka/NATS — experience in designing event-driven integrations.
• Experience with search technologies such as OpenSearch would be a plus.
• CI/CD: GitLab CI, feature flags, migrations, blue-green/rolling deployments.
• Testing: Go testing/testify, integration/e2e.
• Security: OAuth2, JWT.
• Understanding of DDD principles, SOLID, 12-factor methodology, observability (Prometheus/Grafana, OpenTelemetry).
• Russian - C1/higher, English - B1.
Nice to have:
• Experience with Python and/or PHP.
• Experience with TypeScript, JavaScript and React.
• Experience with OpenSearch.
• Data architecture: CQRS/Event Sourcing, idempotency, deduplication.
• Experience building BFFs, WebSockets.
• Feature flags, experiments/A-B testing, product metrics.
Technology Stack (Primary):
• Backend: Go, gRPC/REST, PostgreSQL, Redis, Kafka.
• DevOps: GitLab CI, Docker, nice to have: Kubernetes, AWS, Helm.
• Observability: Prometheus, Grafana, Loki, OpenTelemetry, Sentry.
• Search: OpenSearch.
What We Offer:
• Competitive salary and benefits package.
• Opportunity to work with a talented and passionate team in a creative and dynamic environment.
• Flexible working hours and remote/office work options.
• Career growth and professional development opportunities.
• A fun and inclusive company culture that celebrates diversity and creativity.
Join us and let’s create great content together!
When you apply for this role, we process your personal data in accordance with our Candidate Privacy Notice
(
https://xflowgames.com/candidate-privacy-notice)
.
Location: United Kingdom (Remote); United Kingdom (Hybrid)
Workplace: Remote
Most money apps talk at you. Cleo talks back ✨
We're not building another finance app. We're building the world's first AI financial assistant, one that actually understands your money and makes you better at it, and we're changing the world's relationship with money in the process 💰 For everyone, whatever their background or balance.
The proof: profitable, fast-growing, a unicorn with over $300M in ARR, and millions of people who now feel differently about their money.
We love original thinkers who challenge the status quo. We move fast, tell the truth, and there's nowhere to hide from good work here. If that excites you more than it scares you, you'll fit right in.
Follow us on LinkedIn https://www.linkedin.com/company/cleo-ai/ for new features and the occasional roast 🔥
MEET THE TEAM
Here at Cleo, we have ~200 Engineers organised into Pillars ✨ Our stack spans a Ruby on Rails monolith, a single React Native (TypeScript) app frontend, Python for machine learning services, and PostgreSQL, all hosted on AWS and shipped through Kubernetes - backend goes out multiple times a week, app releases to Google and Apple at least weekly. To thrive here, our engineers proactively use our Engineering Principles to guide daily decisions, take ownership of problems beyond their own squad to drive broader impact, and actively drive their own learning, development and growth.
ABOUT THE ROLE
We're hiring Senior Backend Engineers to join one of our cross-functional product squads - working closely with other engineers, designers, analysts, and product partners to build features that improve our users' financial health.
We care far more about how you think than which language you've used before. Much of our product runs on Ruby today, but we deliberately hire polyglot engineers: if you've shipped meaningful product work in any modern stack, you'll ramp quickly here.
Key responsibilities for this role include:
- Shape the direction of upcoming work - break down ambiguous problems with your squad and help drive projects from early discovery through to shipped impact
- Build and evolve the APIs, data models, and business logic behind our product; no Ruby experience required, just strong fundamentals and sound judgement on trade-offs
- Contribute to testing, observability, and experimentation, and help continuously raise the bar on developer experience and product quality
- Drive high-impact initiatives such as our secured credit card, budgeting and financial insight features, and subscription/pricing experiments
- Mentor engineers at your level and beyond, share knowledge generously, and help build a culture where people grow quickly and have real influence
WHAT WE'RE LOOKING FOR
- An experienced engineer with solid fundamentals, having worked across any modern tech stack - the specific language matters less than your ability to reason clearly, learn quickly, and think in trade-offs
- A track record of writing maintainable, thoughtful code and making sound technical decisions with minimal oversight
- Comfortable working with Ruby, or confident you can ramp up quickly in it - deep Ruby experience isn't required
- Strong collaboration skills with product, design, and data partners, with genuine curiosity about users and their problems
- Experience mentoring or raising the bar for engineers around you, and contributing positively to team culture
- Motivated by Cleo's mission - you care about building products that genuinely improve people's financial health
- Alignment with our engineering principles https://web.meetcleo.com/blog/cleo-engineering-principles - autonomy, accountability, pragmatism, and building things that matter
WHAT WE OFFER
We offer benefits package built to support you in and out of work. Benefits vary by country 🌍 and include meaningful equity, comprehensive health insurance, mental health support, a paid one-month sabbatical after four years, a learning & development platform, pension or retirement contributions, and location-specific leave entitlements.
For the full breakdown on what's available in your location, visit our Candidate Hub https://meetcleo.notion.site/Cleo-Candidate-Hub-3b95c63b874580e9a068fdc6c8929ebf 👈
WHAT MATTERS
Cleo's mission is to change the world's relationship with money. We can't do that without building a brilliant, genuinely diverse team - and making sure our hiring process gives everyone a fair shot, running a fair and transparent recruitment process in which every candidate is considered on their merits.
We're glad to make reasonable adjustments at any stage of the process. If there's anything we can do to support you in showing us your best, please let your recruiter or one of the team know.
We may use AI-assisted tools during the recruitment process to take support the team in different ways like taking notes or referring back to conversations. They do not replace the team and all applications are reviewed by a Cleo employee thoroughly!
Location: Spain
Workplace: Remote
ABOUT THE TEAM
The AI/ML Engineering team builds and operates ClickHouse's AI and machine learning products end-to-end. This includes the Agentic Data Stack, AI Functions, chDB, the in-Console copilot, and the AI/ML partnerships that distribute them — together with the shared components and expertise that let every other ClickHouse team ship AI in the surfaces they own. Our team is looking for highly skilled and experienced software engineers to join us, who will be responsible for designing, building, and operating the products that make ClickHouse the platform of choice for agents and data scientists.
WHAT YOU WILL DO
- Feature Development: Design and implement AI-powered features across the full stack, from backend inference services to intuitive frontend interfaces within the ClickHouse Cloud platform.
- API Architecture: Create robust, scalable APIs that connect ClickHouse's database capabilities with modern AI/ML inference systems and external/internal AI services.
- Ecosystem Integrations: Implement and maintain integrations with the broader AI/ML ecosystem and standards, ensuring that ClickHouse as a technology works seamlessly with popular frameworks and tools.
- Technical Integration: Integrate models into production systems with proper monitoring, versioning, observability, and evaluation.
- Oncall: Participate in the daytime oncall rotation along with the rest of the team.
- Developer Experience: Design and implement developer tools, SDKs, and documentation that enable users to leverage ClickHouse’s AI/ML capabilities.
WHAT YOU WILL BRING ALONG
- 5+ years of software engineering experience in production environments
- Exposure to working directly with AI/ML technologies
- Backend development experience in TypeScript or Python, with a focus on API design and service architecture
- A high level of ownership and can drive features from concept to production with minimal supervision
- Ability to thrive in collaborative environments and can effectively communicate technical concepts to diverse stakeholders
Nice to have
- Experience integrating and deploying AI/ML models in production systems, including working with inference APIs and vector databases
- Familiarity with cloud technologies such as AWS, Azure, or GCP, particularly services related to AI/ML deployment
- Understanding of database systems and data processing pipelines, with ClickHouse experience being a significant plus
PERKS
- Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in over 25 countries.
- Healthcare - Employer contributions towards your healthcare.
- Equity in the company - Every new team member who joins our company receives stock options.
- Time off - Flexible time off in the US, generous entitlement in other countries.
- A USD$500 Home office setup if you’re a remote employee.
- Global Gatherings – We believe in the power of in-person connection and offer opportunities to engage with colleagues at company-wide offsites.
CULTURE - WE ALL SHAPE IT
As part of a rapidly scaling start-up, you will be instrumental in shaping our culture.
Are you interested in finding out more about our culture? Learn more about our values here https://clickhouse.com/company/careers. Check out our blog posts https://clickhouse.com/blog or follow us on LinkedIn https://www.linkedin.com/company/clickhouseinc/life/0c1ee7f4-2129-488d-b413-e7f6270659fd/?viewAsMember=true to find out more about what’s happening at ClickHouse.
EQUAL OPPORTUNITY & PRIVACY
ClickHouse provides equal employment opportunities to all employees and applicants and prohibits discrimination and harassment of any type based on factors such as race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
Please see here https://clickhouse.com/legal/applicant-privacy-notice for our Privacy Statement.
Location: London, England; Dublin
Workplace: hybrid
About us
Aave Labs began with a simple question: how do we make financial services like borrowing, saving, and earning more accessible globally?
We built the Aave Protocol, now the world’s largest and most trusted onchain lending market, connecting decentralized finance with individuals, traditional finance, and fintech.
Today, we build trusted, high-quality products that expand access to lending, credit, and savings globally
Our culture
We build trusted products that help people access and discover economic opportunities.
We hold a high bar for quality and craftsmanship. No detail is too small. Trust depends on it.
We’re a global team building products people can actually use, turning complex technology into something simple and reliable.
We stay aligned, move quickly, and think long term, while keeping teams lean and focused on impact.
About the Role
We're hiring a Principal Backend Engineer to lead the engineering team behind Push, Aave Labs' regulated, non-custodial on-ramp and off-ramp.
This is a hands-on technical leadership role spanning the systems that connect banking and open-banking partners, identity and compliance controls, payment processing, blockchain settlement, customer wallets, and the applications through which customers access Push.
You'll set the technical direction for a high-stakes financial product where correctness, security, auditability, and operational resilience directly affect customer funds and regulatory obligations. Alongside designing and building critical systems, you'll provide day-to-day leadership to the engineering team, create clarity from product and regulatory requirements, and ensure the team can deliver safely at pace.
How you can make an impact:
Own the technical direction and architecture for Push across backend services, external integrations, data flows, and onchain settlement
Translate product, regulatory, and operational requirements into a clear engineering roadmap, well-scoped projects, and sound technical decisions
Design and build resilient services for on-ramp and off-ramp transaction lifecycles, including payment initiation, status tracking, settlement, exception handling, and customer notifications
Lead integrations with open-banking, payments, identity, compliance, and blockchain infrastructure providers
Define secure boundaries between fiat systems, non-custodial wallets, and onchain execution, ensuring sensitive data, permissions, and signing-related flows are handled appropriately
Set and uphold standards for secure development, architecture review, testing, observability, incident response, deployment, and sustainable on-call ownership
Partner closely with Product, Compliance, Legal, Security, Operations, Finance, and application engineers
Remain hands-on in the codebase, particularly for complex architecture, high-risk changes, and critical production issues
Let's connect if you have:
8+ years of backend engineering experience, including senior technical leadership of production systems and teams
Experience designing distributed, event-driven systems that move or account for real money, with a strong understanding of failure modes and operational risk
Experience with regulated financial products and understanding how to balance compliance and regulatory requirements with product features and goals
Strong backend programming skills. Production experience with Rust is highly desirable; deep experience with Go, Java, C++ can substitute
Strong knowledge of API design, PostgreSQL or another relational database, messaging systems, and service-to-service integration patterns
Experience in regulated fintech, payments, banking, digital assets, or another environment requiring auditability, controls, and high availability
Excellent system-design judgement, including migration strategy, build-versus-buy decisions, security boundaries, and the long-term operational cost of architecture choices
A track record of leading engineers through ambiguous, high-impact work while remaining close to implementation and production operations
Haven’t quite met all the criteria? Let’s not miss out on the chance to speak. Whilst you might not meet every single requirement, you might bring other, more exciting skills to the companies!
Equal opportunities statement:
Aave Labs celebrates diversity and views each and every team member as a separate individual with their own unique identity. No matter your race, religion, gender, ethnicity, age, disability, sexual orientation or even the wallet you use, we welcome you at Aave Labs. As an equal opportunities employer, we take accountability and believe in everyone's potential to build, create and inspire changes. With a mission to build a diverse workforce, we are proud to foster a working environment in which everyone can feel safe and valued for who they are.
Location: Remote, Canada; Remote, United States
GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster.
The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems.
Co-create the future with us
as we build technology that transforms how the world develops software.
*
Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab.
An overview of this role
As a Senior or Staff Backend Engineer with the
Database Excellence group
, you'll build and evolve database automation and PostgreSQL as a service capabilities for GitLab. The level will be determined during the hiring process. You'll use Go to automate the full lifecycle of PostgreSQL across GitLab's infrastructure, making database operations safer, more consistent, and easier to scale for databases that sit behind high-throughput, always-on internet services. You'll work closely with partner teams to shape how GitLab provisions and manages PostgreSQL in a fully remote, highly collaborative environment.
Some examples of our projects:
SQL Traffic Replay Tooling
, which validates upgrades and changes against real production workloads.
PostgreSQL as a Service Platform
, which provides standardized, automated provisioning and lifecycle management for internal product databases.
PostgreSQL Major Version Upgrade Automation
, which supports safe, repeatable major upgrades at GitLab.com scale.
What you’ll do
Design, build, and maintain Go-based automation that manages the full PostgreSQL lifecycle, including provisioning, configuration, upgrades, failover, scaling, and decommissioning, reducing reactive operational work that currently takes more than 80% of the team's time.
Build automation that works across infrastructure-as-code tooling and cloud infrastructure, and evaluate operator-based approaches as the platform evolves.
Use AI agents as a regular part of building and operating services, including implementation, review, and reducing repetitive work, while keeping the context agents need in the repository so the whole team can build on it.
Build for internet scale by designing automation and services for high-throughput, always-on production workloads, where GitLab.com traffic sets the bar for correctness, latency, and availability.
Integrate compute, storage, networking, identity and access management, and managed data services across cloud providers into one coherent PostgreSQL platform instead of creating bespoke setups for each database.
Build GitLab's PostgreSQL as a service platform to replace bespoke database setups with standardized, automated provisioning and lifecycle management, so supporting more databases doesn't require growing the operations team at the same rate.
Collaborate closely with product management, infrastructure, software delivery, and other engineering teams to design and ship high-performing solutions.
Research, design, and implement improvements to PostgreSQL performance, scalability, and data health, helping maintain more than 8 months of operational runway for all critical database saturation points.
Review database automation and Go changes from other engineers and contributors, with attention to safety, maintainability, and performance.
Document automation practices, PostgreSQL operational patterns, and guidance that helps engineers use and contribute to the platform.
Build safe, repeatable automation for PostgreSQL major version upgrades at GitLab.com scale, validating changes against real production traffic before rollout.
Operate what you build in production from end to end, using production feedback to guide each iteration.
Take part in on-call or operational support where your team’s ownership model requires it.
What you’ll bring
Professional software engineering experience working with PostgreSQL in large, complex production environments, including experience building or operating a database-as-a-service product.
Proficiency with Go, including designing, implementing, testing, and reviewing backend services.
Experience developing Kubernetes operators, controllers, or similar automation for the lifecycle of stateful services, especially databases. Kubernetes experience is one way to demonstrate this skill, but isn't required; comparable experience building database or infrastructure automation is welcome.
Comfort with infrastructure as code and core database operations concepts such as high availability, replication, backups, and system-level performance trade-offs.
Familiarity with Ruby is a plus but isn't required. Much of GitLab's application codebase uses Ruby on Rails, and being able to read it helps when designing automation that application teams depend on. We’ll expect you to become comfortable with it on the job, not on day one.
Strong written communication skills and comfort working asynchronously in an all-remote, distributed team.
Self-directed work style with effective organizational skills, the ability to manage priorities as a "manager of one," and alignment with GitLab's values of transparency, collaboration, inclusion, and open source contribution, as well as its
operating principles
.
Ownership of the technical direction for a major initiative such as the PostgreSQL as a service platform, turning an ambiguous problem into an architecture and a sequenced plan that several engineers can execute in parallel.
Influence beyond the team, setting the patterns other engineers follow, partnering with sibling database, infrastructure, and platform teams, and growing engineers through design reviews and mentorship.
About the team
The
Database Excellence group
keeps GitLab’s databases running reliably through proactive health management, operational excellence, and strategic enablement. We maintain operational runway by identifying and addressing saturation points, operate infrastructure through automated and scalable processes, and provide tools and frameworks that help teams build features sustainably. Our primary focus is GitLab.com, and we're expanding our scope to provide database health frameworks and tooling that benefit self-managed customers as well.
The base salary range for this role’s listed level is currently for residents of the United States only. This range is intended to reflect the role's base salary rate in locations throughout the US. Grade level and salary ranges are determined through interviews and a review of education, experience, knowledge, skills, abilities of the applicant, equity with other team members, alignment with market data, and geographic location. The base salary range does not include any bonuses, equity, or benefits. See more information on our
benefits
and
equity
. Sales roles are also eligible for incentive pay targeted at up to 100% of the offered base salary.
United States Salary Range
$152,800
—
$259,200 USD
How GitLab Supports Full-Time Employees
Benefits to support your health, finances, and well-being
Flexible Paid Time Off
Team Member Resource Groups
Equity Compensation & Employee Stock Purchase Plan
Growth and Development Fund
Parental Leave
Please note that we welcome interest from candidates with varying levels of experience; many successful candidates do not meet every single requirement. Additionally, studies have shown that people from
underrepresented groups
are less likely to apply to a job unless they meet every single qualification. If you're excited about this role, please apply and allow our recruiters to assess your application.
Country Hiring Guidelines:
GitLab hires new team members in countries around the world. All of our roles are remote, however some roles may carry specific location-based eligibility requirements. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.
Privacy Policy:
Please review our
Recruitment Privacy Policy.
Your privacy is important to us.
GitLab is proud to be an equal opportunity workplace and is an affirmative action employer. GitLab’s policies and practices relating to recruitment, employment, career development and advancement, promotion, and retirement are based solely on merit, regardless of race, color, religion, ancestry, sex (including pregnancy, lactation, sexual orientation, gender identity, or gender expression), national origin, age, citizenship, marital status, mental or physical disability, genetic information (including family medical history), discharge status from the military, protected veteran status (which includes disabled veterans, recently separated veterans, active duty wartime or campaign badge veterans, and Armed Forces service medal veterans), or any other basis protected by law. GitLab will not tolerate discrimination or harassment based on any of these characteristics. See also
GitLab’s EEO Policy
and
EEO is the Law
. If you have a disability or special need that requires
accommodation
, please let us know during the
recruiting process
.
Location: Remote, Poland
GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster.
The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems.
Co-create the future with us
as we build technology that transforms how the world develops software.
*
Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab.
An overview of this role
The Pipeline Authoring group develops tools for creating and managing your pipelines. We balance maintaining core functionality of the product with developing newer areas. Our key areas of focus are
CI/CD components
and the
CI/CD Catalog
, which allows users to discover, reuse, and contribute CI/CD components to make software development more efficient and productive.
As a Backend Engineer, you will work on maturing our Catalog and Component functionality and reliability, improve and maintain performance, scalability and security of Pipeline Creation, and always consider usability and user experience in these key areas of the product. Your contributions and collaboration with your fellow team members will ensure that GitLab CI/CD remains a best in class solution.
Some of the things we have recently been working on include:
Inputs for Pipelines
Inputs for Jobs
Inputs Enhancements
CI/CD Catalog - UX improvements
Learn more on the Pipeline Authoring direction pages:
Pipeline Composition
Component Catalog
About the team
The Pipeline Authoring team is made up of experienced Engineers, some having worked in this area for many years and some having joined more recently. The team shares a passion for finding solutions to complex challenges that scale and are maintainable. Located across five countries and several time zones, async communication is key to our success. The team lives by
GitLab’s core values
and is always eager to improve. Many things in GitLab begin with a pipeline, so our team regularly interacts with other GitLab teams, community contributors and customers as we strive to create the best possible Pipeline Authoring experience.
Learn more on the
Pipeline Authoring group handbook page
and
Pipeline Authoring Unfiltered playlist
.
What you’ll do
Write high-quality, efficient, and maintainable code while adhering to best practices and contributing to code reviews.
Ship small features and improvements with minimal guidance and support from other team members. Collaborate with the team on larger projects.
Advocate for improvements to reliability, security, and performance.
Recognize impediments to our efficiency as a team (“technical debt”), propose and implement solutions.
Participate in agile development practices, including async planning sessions, stand-ups, and retrospectives, to drive iterative software development and continuous improvement for the team.
Contribute to our development process by asking questions and providing feedback to make us better as a team.
Embrace continuous learning and stay connected with industry best practices, tools, and technologies to drive improvements in our software.
Participate in
Tier 2 on-call
rotations to assist troubleshooting product operations, security operations, and urgent engineering issues.
What you’ll bring
Proficiency with Ruby and Ruby on Rails
Proven experience writing testable code in Ruby on Rails
Experience with Relational Database Management Systems (PostgreSQL is a plus)
Experience with GraphQL is a plus
An ability to self manage and organize in an asynchronous and collaborative work environment
Demonstrated capacity to clearly and concisely communicate about complex technical, architectural, and/or organizational problems and propose thorough iterative solutions
Familiarity with various stages of software development end-to-end (Agile methodologies is a plus)
Proven ability to work effectively in a team including product managers, designers, and other engineers
A commitment to continuous learning and openness to giving and receiving feedback as a part of fostering individual and team development
The base salary range for this role’s listed level is currently for residents of the EU, applicable in the specified country or countries only. Sales roles are also eligible for incentive pay targeted at up to 100% of the offered base salary. Grade level and salary ranges are determined through interviews and a review of education, experience, knowledge, skills, abilities of the applicant, equity with other team members, alignment with market data, and geographic location and having regard to any applicable collective agreements. The base salary range does not include bonuses, equity, or benefits.
Poland base salary range:
248,000zł- 372,000zł
How GitLab Supports Full-Time Employees
Benefits to support your health, finances, and well-being
Flexible Paid Time Off
Team Member Resource Groups
Equity Compensation & Employee Stock Purchase Plan
Growth and Development Fund
Parental Leave
Please note that we welcome interest from candidates with varying levels of experience; many successful candidates do not meet every single requirement. Additionally, studies have shown that people from
underrepresented groups
are less likely to apply to a job unless they meet every single qualification. If you're excited about this role, please apply and allow our recruiters to assess your application.
Country Hiring Guidelines:
GitLab hires new team members in countries around the world. All of our roles are remote, however some roles may carry specific location-based eligibility requirements. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.
Privacy Policy:
Please review our
Recruitment Privacy Policy.
Your privacy is important to us.
GitLab is proud to be an equal opportunity workplace and is an affirmative action employer. GitLab’s policies and practices relating to recruitment, employment, career development and advancement, promotion, and retirement are based solely on merit, regardless of race, color, religion, ancestry, sex (including pregnancy, lactation, sexual orientation, gender identity, or gender expression), national origin, age, citizenship, marital status, mental or physical disability, genetic information (including family medical history), discharge status from the military, protected veteran status (which includes disabled veterans, recently separated veterans, active duty wartime or campaign badge veterans, and Armed Forces service medal veterans), or any other basis protected by law. GitLab will not tolerate discrimination or harassment based on any of these characteristics. See also
GitLab’s EEO Policy
and
EEO is the Law
. If you have a disability or special need that requires
accommodation
, please let us know during the
recruiting process
.
Location: Remote, United Kingdom
GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster.
The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems.
Co-create the future with us
as we build technology that transforms how the world develops software.
*
Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab.
An overview of this role
As a Senior Backend Engineer with the
Database Excellence group
, you'll build and evolve the data frameworks and tooling that keep GitLab's application datastores scalable, healthy, and safe across both GitLab.com and thousands of self-managed instances. A primary focus for this role is building proactive data growth controls for GitLab.com, including retention and lifecycle management frameworks, enforcement of retention policies at schema-change time, and tooling that keeps database growth sustainable as AI-driven development accelerates how quickly data accumulates. You'll help teams across GitLab reason confidently about data architecture, placement, and lifecycle management, while proactively identifying saturation points in our GitLab.com infrastructure and driving corrective actions with partner teams. With the team's recent move into the Data Engineering organization, you'll also shape new scalability and data health features for self-managed customers, working hands-on with PostgreSQL and Ruby on Rails in a fully remote, highly collaborative environment.
Some examples of our projects:
Data Growth Controls (retention enforcement and data lifecycle management)
SQL Traffic Replay Tooling
Background Operations Framework
What you'll do
Develop and iterate backend features and data frameworks that make it safe and efficient for GitLab teams to work with data at scale across SaaS and self-managed deployments.
Design and build data retention and lifecycle management frameworks, including retention policy enforcement, bulk data removal tooling, and automated identification of tables that need retention policies.
Build shift-left guardrails, such as static analysis checks and schema-change-time enforcement, that catch unsustainable data growth patterns before they reach production.
Collaborate closely with product management, UX, frontend, infrastructure, software delivery, and analytics teams to design and ship high-performing solutions
Review and improve database-related changes from other engineers and community contributors, ensuring data integrity, safety, and performance across all deployment scenarios.
Design, build, and maintain tooling such as SQL traffic replay and background operations frameworks to proactively surface and address scalability and performance issues.
Research, design, and implement improvements to data retention and lifecycle management, database performance, scalability, and data health, including areas like soft delete strategies and database migration testing.
Document database best practices, patterns to avoid, and data architecture guidance to enable developers to make informed decisions.
Develop proactive tooling and guardrails that help developers detect and remediate potential performance and data issues early in the development lifecycle.
Take part in on-call or operational support where your team’s ownership model requires it.
What you'll bring
Professional software engineering experience working with PostgreSQL in large, complex production environments, including high availability solutions with automatic failover and zero-downtime data migrations as well as managing large or fast-growing datasets through approaches such as data retention, archiving, partitioning, or lifecycle management.
Proficiency with Ruby on Rails or another Ruby framework, including designing, implementing, and reviewing backend features.
Ability to reason about software design, algorithms, and performance trade-offs at a system level.
Strong written communication skills and comfort working asynchronously in an all-remote, distributed team.
Self-directed work style with effective organizational skills and the ability to manage priorities as a "manager of one".
Alignment with GitLab's values, including transparency, collaboration, inclusion, and contribution to open source.
Openness to learning and applying new tools and approaches, including transferable experience from related data, infrastructure, or developer tooling domains.
Willingness to participate in our
tier 2 dabase on-call rotation
in your time zone.
The
Database Excellence Group
is a remote, agile backend team that builds and maintains the frameworks, patterns, and tooling that enable GitLab teams to work confidently with data at scale across all application datastores. As part of the broader Data Engineering organization, we focus on data scalability, health, and developer enablement for both GitLab.com and thousands of self-managed deployments, collaborating closely with infrastructure, software delivery, and analytics stages to ensure data changes are safe, performant, and compatible across diverse environments. We are independent, self-organized contributors, and we collaborate asynchronously across regions. We are currently expanding our mission from proactively identifying and addressing saturation points in GitLab.com infrastructure to also delivering scalability features and data health initiatives to self-managed customers.
How GitLab Supports Full-Time Employees
Benefits to support your health, finances, and well-being
Flexible Paid Time Off
Team Member Resource Groups
Equity Compensation & Employee Stock Purchase Plan
Growth and Development Fund
Parental Leave
Please note that we welcome interest from candidates with varying levels of experience; many successful candidates do not meet every single requirement. Additionally, studies have shown that people from
underrepresented groups
are less likely to apply to a job unless they meet every single qualification. If you're excited about this role, please apply and allow our recruiters to assess your application.
Country Hiring Guidelines:
GitLab hires new team members in countries around the world. All of our roles are remote, however some roles may carry specific location-based eligibility requirements. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.
Privacy Policy:
Please review our
Recruitment Privacy Policy.
Your privacy is important to us.
GitLab is proud to be an equal opportunity workplace and is an affirmative action employer. GitLab’s policies and practices relating to recruitment, employment, career development and advancement, promotion, and retirement are based solely on merit, regardless of race, color, religion, ancestry, sex (including pregnancy, lactation, sexual orientation, gender identity, or gender expression), national origin, age, citizenship, marital status, mental or physical disability, genetic information (including family medical history), discharge status from the military, protected veteran status (which includes disabled veterans, recently separated veterans, active duty wartime or campaign badge veterans, and Armed Forces service medal veterans), or any other basis protected by law. GitLab will not tolerate discrimination or harassment based on any of these characteristics. See also
GitLab’s EEO Policy
and
EEO is the Law
. If you have a disability or special need that requires
accommodation
, please let us know during the
recruiting process
.
Location: United Kingdom (Remote); United Kingdom (Hybrid)
Workplace: Remote
Most money apps talk at you. Cleo talks back ✨
We're not building another finance app. We're building the world's first AI financial assistant, one that actually understands your money and makes you better at it, and we're changing the world's relationship with money in the process 💰 For everyone, whatever their background or balance.
The proof: profitable, fast-growing, a unicorn with over $300M in ARR, and millions of people who now feel differently about their money.
We love original thinkers who challenge the status quo. We move fast, tell the truth, and there's nowhere to hide from good work here. If that excites you more than it scares you, you'll fit right in.
Follow us on LinkedIn https://www.linkedin.com/company/cleo-ai/ for new features and the occasional roast 🔥
MEET THE TEAM 👥
Here at Cleo, we have ~200 Engineers organised into Pillars ✨ Our stack spans a Ruby on Rails monolith, a single React Native (TypeScript) app frontend, Python for machine learning services, and PostgreSQL, all hosted on AWS and shipped through Kubernetes - backend goes out multiple times a week, app releases to Google and Apple at least weekly. To thrive here, our engineers proactively use our Engineering Principles to guide daily decisions, take ownership of problems beyond their own squad to drive broader impact, and actively drive their own learning, development and growth.
ABOUT THE ROLE ✍️
We're hiring Backend Engineers to join one of our cross-functional product squads - working closely with other engineers, designers, analysts, and other disciplines to build features that improve our users' financial health.
Key responsibilities for this role include:
- Work on our Ruby on Rails monolith, building data models, APIs, and business logic services
- Collaborate with peers across your squad and pillar, providing technical insight into upcoming work and helping pull the team together to ship it
- Deliver your work using agile methodologies and tools like tests, observability, A/B tests, and feature flags
- Mentor colleagues to help them grow as engineers, and actively support their development
- Contribute to cross-cutting concerns that raise the bar across engineering
- Shape your squad's work beyond the technical - take part in product ideation, user research, design reviews, and retrospectives
WHAT WE'RE LOOKING FOR 🕵️
- Solid experience with Ruby on Rails, building data models, APIs, and business logic services in a production monolith
- Comfortable delivering with agile methodologies and practices like automated testing, observability, A/B testing, and feature flags
- A collaborative approach — you work well with product, design, and analytics partners, and enjoy shaping work beyond just the technical bits
- Experience mentoring colleagues and supporting their growth as engineers
- Alignment with our company values https://web.meetcleo.com/life-at-cleo and engineering principles https://web.meetcleo.com/blog/cleo-engineering-principles
WHAT WE OFFER
We offer benefits package built to support you in and out of work. Benefits vary by country 🌍 and include meaningful equity, comprehensive health insurance, mental health support, a paid one-month sabbatical after four years, a learning & development platform, pension or retirement contributions, and location-specific leave entitlements.
For the full breakdown on what's available in your location, visit our Candidate Hub https://meetcleo.notion.site/Cleo-Candidate-Hub-3b95c63b874580e9a068fdc6c8929ebf 👈
WHAT MATTERS
Cleo's mission is to change the world's relationship with money. We can't do that without building a brilliant, genuinely diverse team - and making sure our hiring process gives everyone a fair shot, running a fair and transparent recruitment process in which every candidate is considered on their merits.
We're glad to make reasonable adjustments at any stage of the process. If there's anything we can do to support you in showing us your best, please let your recruiter or one of the team know.
We may use AI-assisted tools during the recruitment process to take support the team in different ways like taking notes or referring back to conversations. They do not replace the team and all applications are reviewed by a Cleo employee thoroughly!
Location: Remote - European Region
Workplace: hybrid
Coinspaid Dev is the engineering brand behind the technology, infrastructure, and R&D expertise built within Coinspaid. With more than 120 engineersand over 11 years of industry experience, Coinspaid Dev brings together software engineering, infrastructure, security and R&D teams with experience building distributed systems and blockchain infrastructure operating across more than 20 blockchain networks.
Coinspaid Dev emerges as an independent engineering brand with a straightforward mission: to advance blockchain infrastructure engineering and contribute practical expertise back to the industry. The structure is new. The experience behind it is not.
Responsibilities:
Collaborate with cross-functional and cross-domain teams to gather requirements, design solutions, and deliver features
Design, develop, and maintain backend systems using PHP and MySQL(or similar), ensuring they are scalable and maintainable
Implement and optimize complex features with a focus on clean, reusable, and efficient code
Write unit tests to ensure the reliability and scalability of code
Participate in code reviews, architecture discussions, and ensure adherence to best practices in software development
Monitor and troubleshoot production systems, ensuring the highest levels of availability, performance, and security
Share on-call duties with the team to ensure smooth operations of the systems in production
Stay updated with new technologies and trends, and introduce them where appropriate to enhance system performance and maintainability
Requirements:
Experience (5+ years) in object-oriented PHP and modern PHP tools
Software design principles (SOLID, KISS, DRY) and layered architecture
Applied DDD practices: bounded contexts, aggregates, domain events
Good knowledge of the latest versions of Laravel framework
Strong understanding of relational databases like MySQL/PostgreSQL including transaction management
Experience in database query optimization, analysing deadlocks and db performance
Message-driven services in production with Apache Kafka or a comparable broker
Handling money in application code: exact arithmetic, explicit rounding rules, multi-currency precision, idempotent money-moving operations
Security best practices
Experience with monitoring tools (Prometheus, Grafana or similar)
Working with Docker/Docker Compose/Kubernetes on a daily basis
Good level of spoken and written English (B1+) and Russian
Nice to have:
Experience with Go
Fintech, payments, or crypto domain experience
High-load
Why join CryptoProcessing by Coinspaid
You’ll be joining a company that is actively shaping its space – with enough scale to matter and enough room to make an impact.
At Coinspaid, people are expected to think, contribute, and take ownership – and are supported in doing so.
We focus on flexibility, wellbeing, and long-term growth – without overcomplicating how benefits work.
Flexible Benefits
Benefit Bar – up to €230/monthA flexible monthly budget you can use for what matters most to you – from sports and mental health to coworking, home office, or medical-related expenses.
Work & Flexibility
Fully remote work from almost anywhere
Optional offices and relocation support
Flexible, async-friendly environment
Growth & Learning
Budget for courses, certifications, and professional development
Language learning support
Cross-team learning and knowledge sharing
Wellbeing & Support
Medical insurance or reimbursement depending on location
Access to mental health support
Financial support for important life events
Extras
Merch shop with rewards system
Team offsites and company events
Sounds good? Well then, we can’t wait to see your resume!
To learn more please visit: https://coinspaid.com/about-us/ & https://coinspaid.com/careers/
Задачи:
- Build and maintain infrastructure and backend services that enable crypto products
- Design APIs and event-driven architectures to handle high-volume transaction processing securely and efficiently
- Partner with platform and infrastructure engineers to ensure scalability, observability, and resilience
- Contribute to documentation, tooling, and best practices across the engineering organization
Требования:
- 5+ years of professional experience in backend or distributed systems development
- Experience with L2 blockchains, protocols and crypto infrastructure
- Proven success building production-grade APIs and financial services at scale
- Proficiency in Node.js or similar modern backend frameworks (TypeScript, NestJS, Go, or Java)
- Familiarity with cloud-native architecture (Kubernetes, AWS) and event-driven or microservice-based systems
- Strong communication and collaboration skills across product and platform teams
Location: Batumi, Georgia; Berlin, Germany; Munich, Germany; Lisbon, Portugal; Warsaw, Poland; Barcelona, Spain
The Vault is an MPC-based crypto custody platform for institutional and retail clients, running threshold signing across HSM and Ledger hardware. We're scaling toward Series A, launching our productized platform in 2026, and publishing original cryptographic research alongside the product.
We're hiring a Staff Engineer to design and ship the custody platform's hardest backend code. This is a hands-on IC role with real technical leadership — no people management — where you drive non-trivial initiatives through code, RFCs, and mentorship.
You'll shape architecture in your area of ownership; platform-wide decisions sit with technical leadership. We're AI-forward (Claude Code, Cursor, Codex), and we need engineers who can read AI-generated code critically and catch what it misses — not just prompt it.
You'll naturally gravitate toward either the security-critical core (MPC, threshold signing, HSM/Ledger integration, key lifecycle) or the faster-moving periphery (chain adapters, integrations, APIs/SDKs).
What you'll do
Design, write, and ship critical platform components: policy engine, signing orchestration, key lifecycle workflows, recovery flows, approvals, audit trails, multi-tenant wallet and account services.
Lead non-trivial cross-cutting initiatives in your area — through written RFCs, design reviews, and code, not through hierarchy.
Build high-load, multi-tenant SaaS systems: tenant isolation, quotas, rate limits, backpressure, concurrency control, predictable latency under spikes.
Distributed systems & reliability: idempotency, retries, outbox/inbox, event-driven workflows, sagas and state machines, replay, graceful degradation.
Security-by-design: least privilege, secret handling, mTLS/JWT, tamper-evident logs, audit-ready data models — designed for SOC 2, ISO 27001, and DORA scope from day one.
Performance & data: profiling, load testing, benchmarking, contention analysis, GC tuning; strong relational modelling (Postgres or equivalent), migrations, indexing, clear consistency boundaries.
AI-assisted development as a core competency: ship production code with Claude Code, Cursor, and Codex; build the prompt and agent patterns that work for your area; contribute to the company's AI engineering practices; know when to use AI heavily (periphery, integrations, tests, docs) and when not to (cryptographic core, signing paths) where blind generation is unsafe.
Set patterns and shared libraries for the services your area touches; raise the bar through code review and example.
Own features end-to-end: design notes / RFCs, code, tests, observability, rollout, on-call. No "throw it over the wall" handoffs.
Mentor senior engineers: your reviews and your written designs are the strongest signal to the rest of the team.
Requirements
Must-have experience
Strong CS fundamentals — our primary screening criterion. You can reason from first principles about concurrency, distributed systems, consistency models, networking, and OS behaviour. You know not just what locks and channels do, but why and when. You understand what's happening under the hood, not only at the API level.
Ownership mindset. You've owned non-trivial production systems end-to-end — design, ship, measure, improve, on-call. You don't wait to be told what to do, and you don't ship code you don't understand.
10+ years backend engineering, including 3+ years operating at Staff level (or equivalent senior IC scope). Strong production experience in a modern systems language — Go, Rust, Java, C++, or comparable. Hands-on Go experience, or genuine readiness to ramp on Go in the first month.
Track record of Staff-level technical leadership through code, RFCs, and influence — without formal authority over teams. You can point to RFCs you wrote that the team adopted, initiatives you drove without being the manager, patterns you set that outlasted you.
Proven track record building high-load, multi-tenant SaaS in production (HA, incident response, SLOs).
Hands-on with modern backend stacks: gRPC/HTTP, queues/streams, caching, relational databases, Kafka/NATS or equivalent.
Strong testing discipline: unit/integration/contract tests, testability-first design, deterministic CI.
Strong observability habits: structured logging, metrics, tracing, end-to-end production debugging.
REQUIRED: production-grade use of modern AI coding tools (Claude Code, Cursor, Codex, or comparable). You can point at what you've built with them. You read AI-generated code as a hostile reviewer, not a grateful recipient — you have instincts for what AI tends to get wrong, and you don't ship code you couldn't have written yourself.
Nice to have
Exposure to custody, wallets, or signing systems (MPC, HSM, TEE, key management, approvals).
Hardware wallet integration (Ledger).
Multiple blockchain ecosystems (EVM and Bitcoin minimum; Cosmos, Solana, others a plus).
Built custom agents, MCP integrations, or in-repo AI workflows that compounded a team's productivity.
Designed and run evals for AI-generated code (correctness, security, style).
Kubernetes and service mesh in production; SRE practices.
Regulated-environment experience (fintech, security audits, compliance-driven engineering).
Threat modelling and security review participation.
Familiarity with SOC 2, ISO 27001, and DORA — enough to design for them.
What this role is NOT
A people management role.
A pure architecture / whiteboard role. You write production code in this codebase every week, and platform-wide architectural ownership sits elsewhere.
A research-only cryptography role. You collaborate with our Cryptography Researcher; your focus is platform engineering, not protocol design.
Pure feature ticket execution. If you wait to be told what to do, this won't work.
Benefits
A Staff IC role with real technical leadership — no people management, no sprint mechanics gauntlet, no architecture-by-committee.
An AI-forward engineering culture with budget and autonomy for the tooling, models, and agents you need.
Direct peers in cryptography research, security architecture, product, and delivery — you're not the only senior voice in the room.
Fully remote, any time zone with reasonable overlap with EU/CIS hours.
Competitive comp at the Staff engineer band; equity participation; full benefits.
A product approaching Series A with paying institutional customers and a published cryptographic research line
Location: Remote, Poland
GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster.
The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems.
Co-create the future with us
as we build technology that transforms how the world develops software.
*
Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab.
An overview of this role
The Trusted Agentic Development team sits within GitLab's Developer Experience group and builds the platforms our engineers rely on every day. GitLab engineers increasingly build software with artificial intelligence agents. Agents can generate code and tests in seconds, but they can also produce passing test suites for software that doesn't work as intended. As a Senior Backend Engineer, Trusted Agentic Development, you'll own the technical thesis for closing that validation gap and build the early proof yourself. You'll rethink what validation means when the author is an agent and make the feedback loop fast, automatic, and trustworthy enough that teams choose to adopt it.
Validation that confirms agent-generated code does what was intended, so a passing suite means a working feature and not just a satisfied proxy.
Mid-loop feedback that helps an agent self-correct toward working software instead of green assertions.
Language-aware approaches under one shared model of what "trusted" means, starting with Rust, Ruby, and Go, while allowing the right technique to differ by language.
Real measurement of whether engineers trust and adopt the path, fed straight back into the platform.
What you’ll do
Own the technical thesis for how GitLab validates software when an agent is the author, and turn it into an architecture the team can build against.
Prototype the hard parts by building early versions of feedback mechanisms that catch the gap between passing tests and working software, proving what works before the team scales it.
Develop approaches for GitLab's primary stacks, starting with Rust, Ruby, and Go, under one shared definition of "trusted," while allowing the right technique to differ by language.
Design the mid-loop feedback an agent needs to self-correct toward working software rather than green assertions, and build the systems that deliver it.
Collaborate with engineering teams to adopt these approaches, measure adoption, engineer trust, and validation quality, and use those findings to improve the platform.
Set technical direction the team can build on, review designs, and help teammates grow their technical judgment.
Take part in on-call or operational support where your team’s ownership model requires it.
What you’ll bring
Deep, current, hands-on experience building real software with artificial intelligence agents, ideally across more than one language, and a clear understanding of why agent output can pass tests yet fail in production.
A strong point of view on the validation gap and concrete ideas for closing it, backed by approaches you've built or tried.
Experience designing distributed systems designed to run on Kubernetes first.
The technical range to design systems rather than tune a single framework, and the judgment to know when a solution should be general or language-specific.
You prototype to learn, and you ship.
The ability to influence engineers across an organization without formal authority through working code and sound reasoning.
Strong written communication in an all-remote, asynchronous environment.
Alignment with GitLab's values, especially collaboration, iteration, and transparency.
This isn't a quality assurance or test automation role. We aren't looking for depth in a particular testing framework. We're looking for someone who has built with agents, experienced the validation gap firsthand, and wants to solve it.
About the team
The Trusted Agentic Development team is part of GitLab's Developer Experience group. We build platforms and practices that help GitLab engineers validate agent-generated software with confidence. We work across engineering teams and programming languages to understand how people use agents, test new approaches in real workflows, and create a shared model of trusted agentic development that teams choose to adopt.
Poland base salary range:
272,000 PLN – 408,000 PLN
The base salary range for this role’s listed level is currently for residents of the EU, applicable in the specified country or countries only. Sales roles are also eligible for incentive pay targeted at up to 100% of the offered base salary. Grade level and salary ranges are determined through interviews and a review of education, experience, knowledge, skills, abilities of the applicant, equity with other team members, alignment with market data, and geographic location and having regard to any applicable collective agreements. The base salary range does not include bonuses, equity, or benefits.
How GitLab Supports Full-Time Employees
Benefits to support your health, finances, and well-being
Flexible Paid Time Off
Team Member Resource Groups
Equity Compensation & Employee Stock Purchase Plan
Growth and Development Fund
Parental Leave
Please note that we welcome interest from candidates with varying levels of experience; many successful candidates do not meet every single requirement. Additionally, studies have shown that people from
underrepresented groups
are less likely to apply to a job unless they meet every single qualification. If you're excited about this role, please apply and allow our recruiters to assess your application.
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GitLab hires new team members in countries around the world. All of our roles are remote, however some roles may carry specific location-based eligibility requirements. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.
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GitLab is proud to be an equal opportunity workplace and is an affirmative action employer. GitLab’s policies and practices relating to recruitment, employment, career development and advancement, promotion, and retirement are based solely on merit, regardless of race, color, religion, ancestry, sex (including pregnancy, lactation, sexual orientation, gender identity, or gender expression), national origin, age, citizenship, marital status, mental or physical disability, genetic information (including family medical history), discharge status from the military, protected veteran status (which includes disabled veterans, recently separated veterans, active duty wartime or campaign badge veterans, and Armed Forces service medal veterans), or any other basis protected by law. GitLab will not tolerate discrimination or harassment based on any of these characteristics. See also
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Location: Vladivostok
Workplace: onsite
ABOUT US
Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game.
For more information, visit xsolla.com.
ABOUT YOU
We are looking for a Backend Engineer at junior level to join our APAC Partnerships team in Vladivostok, working alongside our HQ Integration Management and Engineering teams. Your job is to make partnerships technically real: turning an inbound partnerships inquiry into a working integration, generating and serving the affiliate and referral links that Traffic Source Partners use, and making sure the traffic those links carry lands correctly in our Web Shops and is attributed all the way through to a purchase.
You will write the backend that sits between a partner and our commerce platform — link generation, click and conversion tracking, attribution pass-through, postbacks, and the reporting endpoints that feed partner payouts. You will also build the internal tooling that lets the Partnerships and Customer Success teams onboard partners and reconcile payouts without hand-editing spreadsheets.
This is an entry-level engineering role with genuine product surface area. Recent graduates and career-changers with a strong project portfolio are welcome. If you like small, well-scoped systems that other people depend on daily, and you want to learn commerce, attribution, and payments engineering from a team that runs it at global scale, we would love to hear from you.
RESPONSIBILITIES
Build partner integrations
Build and maintain backend services that power Traffic Source partnerships: affiliate and referral link generation, click and conversion tracking, attribution parameter pass-through, server-to-server postbacks and webhooks, and partner-facing reporting endpoints.
Take new partnerships inquiries from intake through to production — clarify the requirement with the Partnerships and BD teams, write the technical spec, implement, test, and deploy.
Integrate affiliate links with Xsolla Web Shops so partner-driven traffic is tracked end to end and attributed correctly at checkout.
Read a partner's API documentation and build against it; where a partner needs to build against us, document our side clearly and support their integration.
Tooling & data
Build internal tooling and scripts for partner onboarding, bulk link generation, performance data extraction, and payout reconciliation reporting used by the Customer Success and Partnerships teams.
Investigate and resolve attribution and tracking discrepancies together with Analytics and Customer Success — missing conversions, duplicate events, broken parameters, timing mismatches.
Add logging, metrics, and alerting so integration failures are caught by us rather than reported by a partner.
Ways of working
Write and maintain API documentation and integration guides for partners and internal stakeholders.
Participate in code review, write tests, and work within existing CI/CD pipelines and Git workflows.
Work with the HQ Engineering and Integration Management teams on standards and architecture; escalate design decisions early rather than working around them.
Collaborate closely with the Partnerships Designer on the frontend surfaces your integrations power, and with Customer Success on the payout data your services produce.
Track work in Jira and keep technical documentation current in Confluence.
REQUIREMENTS
1–4 years of professional backend development experience, or a strong portfolio of personal, academic, or internship projects you can walk us through. Recent graduates are welcome.
Working proficiency in at least one backend language — Go, PHP, Python, Node.js / TypeScript, or Java.
Solid SQL and relational database fundamentals (schema design, joins, indexing basics).
Good understanding of HTTP, REST APIs, JSON, webhooks, and API authentication (API keys, OAuth 2.0).
Comfortable with Git and working in a code-review culture.
Able to debug a problem you did not write — read logs, reproduce, isolate, and explain the cause.
English sufficient for technical discussion and written documentation with HQ teams; Russian for day-to-day work in the Vladivostok office.
Based in, or willing to relocate to, Vladivostok for an onsite role.
NICE TO HAVE
Exposure to affiliate or performance marketing technology: tracking pixels, S2S postbacks, click IDs and UTM parameters, last-click attribution, deduplication, or traffic-quality and fraud filtering.
E-commerce, storefront, checkout, or payments integration experience.
Frontend basics (JavaScript / TypeScript, React) — enough to work productively with the Partnerships Designer on shop and landing-page surfaces.
Docker, CI/CD pipelines, and cloud platforms (GCP or AWS).
Message queues, scheduled jobs, or data pipeline experience.
Familiarity with analytics or BI tooling.
Interest in the gaming industry, fintech, or high-load consumer platforms.
BENEFITS
We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees and their families through a comprehensive Benefits Program. This includes 100% company-paid medical, dental, and vision plans, Flexible Time Off, and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play.
Benefits
Convenient working tools:
New Mac laptop and any other necessary equipment for your efficient work.
Google Workspace, Atlassian, Jira, Slack
Professional growth:
Paid professional training and attendance at specialized conferences
Exchange of experience between employees within the company
Opportunity for professional growth within the company and department
Obtaining expertise in various areas and products of the company
More perks
Possibility of flexibility working
Access to the corporate library
Health & dental insurance
No dress code
Comfortable and new office environment
The duties and responsibilities of this position may evolve over time to support the organization's goals and individual growth. This job description is intended to outline the general nature and level of work being performed and is not intended to be an exhaustive list of all duties, responsibilities, and qualifications required. By submitting your application, you consent to Xsolla conducting background checks, where permitted by law, after the final interview stage. All checks will comply with local regulations, and your information will be handled confidentially. Xsolla takes your privacy seriously and will not sell or externally distribute any personal data received during the hiring process. In accordance with applicable data protection laws, Xsolla is committed to protecting your personal information and respecting your privacy.
For any inquiries related to data privacy, please contact: careers@xsolla.com
Explore more opportunities at: https://xsolla.com/careers
ОфисseniorBerlin
ОфисseniorBoston, MA; New York, NY
Не хотите искать каждый день?
Настройте подбор один раз, и подходящие вакансии будут сами приходить в Telegram.
Настройте подбор, и подходящие вакансии будут приходить в Telegram.
УдалённоUnited Kingdom (Remote); United Kingdom (Hybrid)
УдалённоseniorSpain
ГибридLondon, England; Dublin
УдалённоRemote, Canada; Remote, United States; The base salary range for this role’s listed level is currently for residents of the United States only
УдалённоLocated across five countries and several time zones, async communication is key to our success; The base salary range for this role’s listed level is currently for residents of the EU, applicable in the specified country or countries only
УдалённоseniorRemote, United Kingdom; in your time zone
УдалённоUnited Kingdom (Remote); United Kingdom (Hybrid)
ГибридseniorOptional offices and relocation support
УдалённоBatumi, Georgia; Berlin, Germany; Munich, Germany; Lisbon, Portugal; Warsaw, Poland; Barcelona, Spain; Fully remote, any time zone with reasonable overlap with EU/CIS hours
УдалённоseniorThe base salary range for this role’s listed level is currently for residents of the EU, applicable in the specified country or countries only
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