Бэкенд вакансии - удалённо

О РОЛИ Мы ищем опытного backend-разработчика для усиления Web3-направления. Роль предполагает проектирование архитектуры, разработку ключевой серверной логики и развитие масштабируемых API. Основной фокус — производительность и устойчивость системы при работе с блокчейн-сервисами. ОСНОВНЫЕ ЗАДАЧИ — Проектирование и реализация сложной backend-логики на Python. — Развитие API и глубокая интеграция с внешними Web3-сервисами. — Оптимизация производительности и устойчивости высоконагруженных компонентов. — Участие в принятии ключевых архитектурных и технических решений. ТРЕБОВАНИЯ К КАНДИДАТУ — Опыт разработки на Python (FastAPI) от 1,5 лет. — Практический опыт работы с брокерами сообщений (Kafka) и кэшированием (Redis). — Опыт реализации межсервисного взаимодействия через gRPC. — Глубокое понимание микросервисной архитектуры и проектирования REST API. — Наличие завершенных проектов в сфере Web3. — Уверенное владение Django (ORM, middleware, management commands). БУДЕТ ПРЕИМУЩЕСТВОМ — Опыт работы с Docker и понимание принципов CI/CD. — Навыки оптимизации высоконагруженных (highload) систем. — Опыт работы с асинхронными фреймворками (ASGI). УСЛОВИЯ РАБОТЫ — Участие в разработке инновационных масштабируемых сервисов. — Реальная возможность влиять на архитектурный облик продукта. — Конкурентная заработная плата в стабильной валюте. — Работа в сильной инженерной команде с возможностью профессионального роста.

Задачи: — Разработка модуля ядра Linux (управление файлами и процессами). — Реализация логики контроля доступа (перехват системных вызовов, работа с VFS). — Адаптация кода с Windows на Linux (переписывание драйверной логики). — Глубокая оптимизация, отладка (perf, strace, GDB) и интеграция с Java-модулями. Требования: — Знание C/System programming: POSIX API, mmap, epoll/inotify, процессы/потоки, IPC. — Опыт создания модулей ядра Linux, понимание VFS, системные хуки (ptrace/seccomp). — Навыки отладки и профилирования: GDB, perf, strace. — Владение инструментами: Makefile, CMake, Git, CI/CD. — Знания в области безопасности: защита данных на уровне драйвера, учет уязвимостей. — Опыт работы в корпоративных системах безопасности (DLP, EDR, HIDS) и с пользовательскими функциями ОС. Условия: — Полный рабочий день (фултайм). — Работа удаленно, только на территории РФ. — Процесс отбора: тестовое задание и собеседование.

Jetlyn разрабатывает комплексную CRM-экосистему для крупного застройщика. Требования: — Коммерческий опыт backend-разработки на Python от 3 лет — Уверенное владение FastAPI и Django, глубокое понимание asyncio для высококонкурентных задач — Опыт проектирования и реализации сервисов с нуля (архитектура, БД, API, деплой) — Твёрдое понимание алгоритмов и структур данных, умение выбирать оптимальные решения под нагрузку — Опыт написания тестов (pytest/unittest), соблюдения принципов чистого кода и code review — Понимание REST API, работы с реляционными БД, брокерами сообщений и кэшем — Готовность брать ответственность за фичу от постановки задачи до stable-релиза

Задачи: — Участие в проектировании, разработке и поддержке сервисов/микросервисов. — Code review в команде. — Разработка юнит-тестов и тестирование собственного кода на соответствие критериям приемки. — Анализ инцидентов. — Активное участие в формировании DevOps-решений, инструментов и автоматизации. — Разработка и внедрение CI/CD, интеграция с сервисами, настройка сервисов мониторинга и уведомлений, организация автоматизированного тестирования и проверки кода. Требования: — Опыт создания production-решений, простых в эксплуатации (способных работать 24х7, с развернутой системой метрик prometheus/grafana/ELK). — Глубокое знание и понимание архитектурных принципов. — Углубленное знакомство с Kubernetes, включая написание операторов и контроллеров. — Отличное владение Python, умение работать с асинхронным кодом. — Знание классических алгоритмов и структур данных. — Навыки технического лидерства проектом. — Опыт работы с сервисами под большой нагрузкой. — Навыки работы с Linux. — Опыт работы с реляционными базами данных.

Задачи: — Разработка и поддержка backend на Node.js; — Проектирование API и архитектурных решений; — Оптимизация и рефакторинг кода; — Работа в команде. Требования к кандидату: — Опыт от 5+ лет с Node.js и TypeScript; — Опыт проектирования архитектуры (DDD / clean architecture); — Уверенные знания Node.js, ES6+; — Опыт с Koa, Express, NestJS; — Работа с SQL и NoSQL базами данных; — Понимание протоколов HTTP и WebSocket. Условия: — Современный стек технологий: Node.js, TypeScript, Redis, Clickhouse, Kafka, Centrifugo, MongoDB; — Работа в команде над актуальными проектами; — Отсутствие Legacy кода.

Продукт: Торговое ядро криптоплатформы О РОЛИ Мы ищем Senior-разработчика для развития высоконагруженного торгового ядра. Ваша работа будет сосредоточена на проектировании сервисов маршрутизации ордеров, риск-менеджмента и систем с ультранизкими задержками. Это позиция для инженеров, готовых отвечать за стабильность критически важных финансовых систем. ОСНОВНЫЕ ЗАДАЧИ — Проектирование масштабируемых сервисов (ордера, балансы, расчет рисков). — Оптимизация производительности для достижения сверхнизких задержек (Low-latency). — Обеспечение отказоустойчивости: внедрение систем самовосстановления и Graceful Degradation. — Усиление безопасности API, реализация Rate-limiting и защиты торговых операций. — Контроль качества через нагрузочное тестирование и соблюдение строгих SLA. ТРЕБОВАНИЯ К КАНДИДАТУ — 5+ лет коммерческого опыта разработки на стеке .NET/C#. — Обязателен опыт в разработке криптобирж, торговых платформ или биржевых продуктов. — Глубокие знания конкурентного программирования и Event-driven архитектуры. — Опыт работы с брокерами сообщений (Kafka, NATS или RabbitMQ). — Понимание принципов безопасности API, аудита и целостности данных. БУДЕТ ПРЕИМУЩЕСТВОМ — Опыт работы с FIX-протоколом, WebSockets и торговыми API. — Знание Cloud-native стека (Kubernetes, AWS/GCP, Service Mesh). — Опыт разработки критически важных систем в традиционном финтехе. УСЛОВИЯ РАБОТЫ — Сложные инженерные вызовы и работа в команде экспертов индустрии. — Полностью удаленный формат и гибкий график. — Поддержка профессионального развития и участия в профильных конференциях. — Возможность прямого влияния на архитектуру и успех глобального продукта.

Location: USA (Remote); Slovakia (Remote); Spain (Remote); Czechia (Remote); Switzerland (Remote); Estonia (Remote); Mexico (Remote); Israel (Remote); Bulgaria (Remote); Austria (Remote); Iceland (Remote); Croatia (Remote); Hungary (Remote); Ireland (Remote); Canada (Remote); South Africa (Remote); Brazil (Remote); Finland (Remote); UK (Remote); Cyprus (Remote); Malta (Remote); Latvia (Remote); Argentina (Remote); Poland (Remote); Uruguay (Remote) Workplace: Remote WHO WE ARE Hi, we're DuckDuckGo, the online protection company and remote-first team of 400+ on a mission to raise the standard of trust online. Founded in 2008 and profitable since 2014, our annual revenue is in the hundreds of millions USD and millions use our browser on Mac https://spreadprivacy.com/introducing-duckduckgo-for-mac/, Windows https://spreadprivacy.com/windows-browser-open-beta/, iOS https://spreadprivacy.com/duckduckgo-privacy-browser-ios14/, and Android https://spreadprivacy.com/introducing-app-tracking-protection/, our search engine https://duckduckgo.com/, and the DuckDuckGo subscription https://duckduckgo.com/pro. We also offer private, useful, and optional AI, including Duck.ai https://duck.ai/, which lets you chat privately with ChatGPT, Claude, and other AIs, all in one place.   Our culture https://duckduckgo.com/how-we-work of trust, inclusivity, and empowered project management underpins everything we do, where each team member takes full ownership of their projects, from scoping and execution to postmortem. If you're seeking end-to-end ownership of your work, you've come to the right place! YOUR TEAM AND ROLE Working on the Backend Functional Team, you'll lead complex projects across key company-wide objectives. Using Perl (Version 5), Go, and Node.js, you’ll write pragmatic, performant, testable code that works consistently, and work on related projects. Recent projects include: - Implementing AI-assisted answers and integrating them into our Search product while maintaining our privacy-first approach - Delivering improvements to Duck.ai to help us make it a competitive AI chat alternative for both free and paying users - Implementing sophisticated data processing pipelines that maintain search relevancy As a Senior Backend Engineer, you'll collaborate remotely with your peers and take responsibility for solving product issues impacting our all-in-one privacy solution, whether large or small. In time, you'll formally mentor other engineers, supporting their career growth and the growth of the Backend Team at DuckDuckGo. ABOUT YOU - 7+ years of professional experience, primarily focused on backend systems that power consumer-facing products - Product acumen to reason about technical tradeoffs in terms of user impact - Familiarity with AI agent tooling: evaluation frameworks, RAG pipelines and prompt engineering - A fundamental understanding of complex data structures and algorithms — you can develop and apply new solutions and confidently navigate and improve existing code. - Data-driven analytical skills for decision-making, stakeholder alignment, and experiment-oriented delivery - Solid project management abilities - Excellent written and verbal communication to validate and articulate decisions - Previous experience leading and mentoring experienced engineers, supporting their career goals, and unlocking their potential. COMPENSATION This role is paid on a regional pay scale, in local currency, and stock options: - United States: $190,500 USD annually - United Kingdom: £134,600 GBP annually - Canada: C$253,500 CAD annually - Europe/Rest of World: €157,350 EUR annually In Spain, pay is expected to transition to the EUR scale on January 1, 2027, and in other Europe/Rest of World countries on February 1, 2027.   Compensation is transparent across the organization, and all team members within the same professional level and global region receive the same compensation.   Eligibility for company-sponsored health benefits is limited to team members based in the United States. This program does not extend to team members located in other countries, such as Canada or the UK.   Our Team Member Support Guide https://duckduckgo.com/assets/hiring/team_support_guide.pdf explains how we prioritize your wellbeing including paid parental leave, office setup, and co-working allowances.   HIRING PROCESS Hiring works best when it's a two-way street. Learn how we help you get to know DuckDuckGo, envision your future role here, and find out more about how we hire https://duckduckgo.com/how-we-hire. DIVERSITY, EQUITY AND INCLUSION DuckDuckGo provides equal work opportunities to all team members and applicants, and it prohibits discrimination and harassment of any type on the basis of race, color, ethnicity, caste, religion, age, sex (including pregnancy), national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by our policies or federal, state, or local laws. We want to ensure that our hiring process is accessible. If you need reasonable accommodation for any part of the application process because of a medical condition or disability, please send an email to careers@duckduckgo.com to let us know the nature of your request. PLEASE NOTE THAT: - You’ll be required to attend meetings on camera via video conferencing - Expect to travel at least two times a year: once for our all-hands meetup and again for a team retreat (each around 4-5 days). While extenuating circumstances may impact attendance, everyone is strongly encouraged to attend. - While we offer a flexible work arrangement with no core hours, expect an average full-time commitment of 40 hours per week. - A successful candidate must pass a background check as a condition of joining the team. - By applying for this role, you confirm that all information submitted is accurate and complete. You further acknowledge that providing false or fraudulent information during the application process is cause for denial of an offer, revocation of any existing offer, or other adverse action, up to and including termination after the start of your commencement of work. Disclosure Statement: Use of AI in Hiring Process As part of our commitment to enhancing our recruitment process, we utilize artificial intelligence (AI) technology to assist in reviewing and summarizing job applications and test projects, including those tools integrated into our recruitment vendor platforms. We use AI to flag potentially fraudulent applications, analyze and summarize applicants’ experience, interviews, and project performance, and help streamline our selection process. Key Principles: - Data Privacy: All information provided in your application will be handled in accordance with our Recruiting Privacy Policy https://duckduckgo.com/static-assets/files/pages/careers/DuckDuckGo-Recruiting-Privacy-Policy-effective-September-30-2025.pdf. We ensure that your personal information is protected and used solely for recruitment purposes. - Human Oversight and Accountability: The AI technology is designed to support our hiring team by providing insights and summaries of applications and evaluations of test projects against scoring rubrics. All final evaluations and hiring decisions, however, will be made by our hiring team, who will consider the AI's input alongside other factors. - Transparency: We believe in transparency regarding our hiring practices. If you have any questions about how AI is used in our recruitment process, please feel free to reach out to us. By submitting your application, you acknowledge and consent to the use of AI technology in our review process. If you would like to request an alternative selection process, please contact us as at careers@duckduckgo.com. Thank you for your interest in joining DuckDuckGo! #LI-DNI

Location: United States & Canada Workplace: Remote About WorkOS 🚀 WorkOS builds modern developer tools and APIs that make it easy for companies to become Enterprise Ready. Our platform powers authentication, identity, authorization, and other critical infrastructure that developers need to securely scale their products to large organizations. We recently raised a $100M Series C, valuing the company at $2B, led by Meritech and Sapphire with participation from Greenoaks, Craft, Abstract, and Audacious. WorkOS powers enterprise features for many of the fastest-growing AI companies, including OpenAI, Cursor, and Perplexity, Sierra, and Plaid. As AI reshapes software, WorkOS is at the frontier of Human and Agent Authentication, Identity, and Access Control helping companies answer a new critical question: who are your agents, and what are they allowed to do? Our fast-growing customer base includes hundreds of modern software companies building the next generation of enterprise-ready products. ABOUT THE ROLE We're looking for a GTM Engineer to join our team. This is a hands-on engineering role embedded in our GTM org. You'll own the systems that power how we identify, enrich, score, and engage prospects at scale: a custom built enrichment pipelines leveraging Cargo, the campaign sync tooling that feeds our events and outbound plays, and the code that ties it all together. You'll work at the intersection of GTM strategy and software engineering by writing production TypeScript/Python, shipping PRs, designing schemas, and building internal tools that the whole GTM team depends on daily. Think of it as being the engineer who makes the rest of the GTM team unreasonably effective. You don't need to have done this exact job before. You need to care about the craft. The best GTM Engineers at WorkOS are the ones who spot a broken workflow in Slack at 11pm, open a PR the next morning, and ship the fix before the standup. They're the ones who, when the sales team complains about bad data, don't just route it to RevOps, they dig into the Snowflake schema and find the upstream issue. If that sounds like how you work, we want to talk.   RESPONSIBILITIES - Enrichment infrastructure: You'll maintain and improve our core enrichment pipeline: the workflows that take a new signup or a conference attendee list and return a fully enriched, scored, and Salesforce-upserted record. Today that involves Cargo, Clay, Snowflake, and a growing set of data providers (Apollo, Linkup, Exa). You'll own the reliability, fill rates, and schema consistency of these systems. - Account scoring: You'll work on the fit scoring pipeline: the logic that evaluates every company flowing through our stack against our ICP and writes results to Snowflake and SFDC. This includes batching optimization, retry logic, logging and observability, and continuously improving the underlying signals. - Campaign and event tooling: You'll build and maintain the systems that sync event attendee lists (Luma, conference CSVs) through enrichment and into Salesforce campaigns. When a BDR asks "who came to our event last night?", your tooling answers that question automatically and routes the right records to the right owners. You’ll also propose and prioritize growth experiments, validate the approach, own implementation, measure results, and iterate. - Custom Tooling integration: You'll build and maintain enrichment tooling accessible via Wallaby, WorkOS's internal AI agent that the GTM team uses to look up prospects, run ad-hoc enrichments, and surface account intel on demand. You’ll design the underlying tools so they’re clean, effective, and composable, using AI and automation across research, enrichment, routing, and engagement workflows. - GTM data infra: You'll work closely with the data engineering team to keep our Snowflake schema in sync with the tools that consume it, track downstream pipeline impacts when schemas change, and ensure the data flowing into SFDC is accurate and up-to-date. Own and maintain lead and conversion tracking across the funnel, including lifecycle stages and campaign attribution. Keep the underlying data and tracking reliable so we can measure conversion and identify where prospects drop off. - Code: You'll ship real code. PRs go through review. You'll debug production incidents (Salesforce API rate limits, Cargo timeouts, enrichment failures). You'll instrument logging, add observability, and think carefully about batching, concurrency, and idempotency. QUALIFICATIONS - Engineering foundation: You're a capable software engineer. You write clean TypeScript or Python, understand async patterns, know how to design a database schema, and can debug a production incident from logs alone. You don't need to have worked at a software company, but you need to be able to write and ship code. - GTM domain knowledge: You've worked with the tools: Salesforce, HubSpot, Clay, Cargo, Apollo, or equivalents. You understand how leads flow through a CRM, what enrichment providers actually return, and why data quality degrades over time. Ideally you've had a BDR or AE background that gives you intuition for what the sales team actually needs. - Systems thinking: You think in pipelines, not one-off scripts. When you build something, you think about what happens at 10x volume, when an API goes down, or when the same company gets submitted five times simultaneously. - 3+ years of experience in GTM Engineering, Revenue Operations, or a closely adjacent technical role at a high-growth B2B SaaS company. Benefits and Perks (US Only) 💖 At WorkOS, we offer resources that emphasize personal and familial well-being. We offer healthcare coverage for you and your family, including medical, dental, and vision. We offer parental leave, paid-time off and fully remote working arrangements.   - 401k matching - Competitive Equity - Healthcare, dental and vision coverage - FSA, ST/LT Disability, Voluntary Life - Carrot fertility benefits - 20 days paid vacation + 10 holidays + unlimited sick leave - 12 weeks fully paid parental leave - Fitness: Monthly stipend for gyms, yoga classes, race registrations or whatever keeps you active - Wellness: Monthly stipend for a massage, meditations class, therapy, or activities that enhance your well-being - Commuter benefits for hybrid employees in SF/NYC - Unlimited token usage! Please inquire directly with our recruiting team for benefits available to those working outside the US.   Equal Opportunity Employer WorkOS is an equal opportunity employer, committed to diversity and inclusiveness. We will consider all qualified applicants without regard to race, color, nationality, gender, gender identity or expression, sexual orientation, religion, disability or age. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Задачи: — Разработка и поддержка веб-приложений на платформе .NET / .NET Core в финтех-проекте. — Взаимодействие с аналитиками и участие в проработке требований. Требования к кандидату: — Опыт коммерческой разработки веб-приложений на платформе .NET / .NET Core от 4 лет. — Уверенное понимание внутренних механизмов платформы .NET: Memory Management, GC, async/await, многопоточность, оптимизация производительности. — Опыт работы с реляционными базами данных (PostgreSQL) и ORM: Entity Framework Core, желательно знание Dapper. — Опыт работы с системами контроля версий (Git / GitLab). — Опыт работы с брокерами сообщений (RabbitMQ, Kafka или аналогичными). — Опыт настройки CI/CD (GitHub Actions, GitLab CI, TeamCity, Drone или другие). — Навыки написания поддерживаемого кода и покрытия его тестами (Unit / Integration / API). — Опыт взаимодействия с аналитиками и участия в проработке требований. — Опыт работы в распределенной команде. — Проактивность, ответственность, самоорганизованность, нацеленность на результат, инициативность. — Понимание Binary Release Management, Scrum/Kanban. — Желательный опыт: финтех, банки, биллинг, телеком. Условия: — Проектная занятость на 6-7 месяцев. — Локация и гражданство: только РФ. — Просьба высылать резюме в формате docx.

Задачи: — Разработка и поддержка backend-сервисов на Node.js — Построение REST API — Работа с фреймворком Fastify — Интеграции с внешними API и сервисами — Проектирование архитектуры сервисов — Оптимизация производительности и масштабируемости — Работа с базами данных (SQL/NoSQL) — Участие в code review и обсуждении технических решений Требования: — Возраст от 23 лет — Опыт разработки на Node.js от 2+ лет — Опыт работы с Fastify (или Express + готовность перейти) — Понимание асинхронности (Event Loop, Promises, async/await) — Опыт работы с REST API — Знание SQL (PostgreSQL / MySQL) или NoSQL (MongoDB) — Понимание принципов SOLID, DRY, KISS — Опыт работы с Git — Базовое понимание Docker — Будет плюсом: опыт работы с микросервисной архитектурой, опыт работы с очередями (RabbitMQ, Kafka), знание TypeScript, опыт написания тестов (Jest, Vitest), опыт работы с CI/CD Условия: — Формат: удаленно — Гибкий график

Задачи: — Участие в проектировании и разработке новой платформы с нуля — Реализация компонентов в DDD-подходе (ядро торгов, шлюзы, адаптеры, кэш и др.) — Проработка интерфейсов взаимодействия с внешними системами — Разработка микросервисов, логирование, покрытие тестами — Участие в выборе архитектурных решений, обсуждениях с командой аналитиков и QA Требования: — Опыт работы от 4-х лет — Опыт разработки на стеке Golang (PostgreSQL, Kafka, Docker) — Знание SQL и опыт работы с СУБД (PostgreSQL/MySQL) и NoSQL (Redis, Kafka, MongoDB) — Умение разрабатывать микросервисы — Опыт работы с высоконагруженными системами — Знание и умение применять SOLID принципы в разработке — Понимание и применение паттернов проектирования — Навыки тестирования приложений — Опыт работы с AWS/GCP сервисами — Понимание принципов микросервисной архитектуры Будет плюсом: — Опыт разработки на Python и/или PHP — Опыт работы с системами оркестрации k8s / OKD — Опыт работы с СУБД Clickhouse и Tarantool Условия: — Оформление: ИП или ГПХ — 5-дневная рабочая неделя с гибким началом дня (8:00-11:00 по Мск) — Удобный формат работы: полная удаленка — Современные и интересные проекты — Возможность обучения и карьерного роста

Компания — процессинговая платформа для криптовалютных платежей, работающая с мерчантами по всему миру (e-commerce, iGaming). Продукт — надёжный и высоконагруженный бэкенд, а также удобные инструменты для клиентов: личный кабинет, аналитика и управление транзакциями. Задачи: — Разработка и развитие API для личного кабинета мерчанта и дашбордов. — Проектирование и поддержка REST / WebSocket API для фронтенда и внешних интеграций. — Работа с транзакционными данными: история операций, балансы, выплаты, reconciliation. — Разработка системы ролей, прав доступа и аудита действий пользователей. — Участие в проектировании микросервисной архитектуры и межсервисного взаимодействия. — Оптимизация запросов к БД, работа с высоконагруженными сценариями. Требования: — 5+ лет опыта бэкенд-разработки, из них 3+ года на Node.js / TypeScript. — Уверенное владение PostgreSQL: сложные запросы, индексы, партиционирование. — Опыт проектирования REST API: версионирование, документирование (OpenAPI / Swagger). — Понимание принципов микросервисной архитектуры, опыт с message brokers (Kafka, RabbitMQ или аналоги). — Опыт работы с Redis: кэширование, очереди, rate limiting. — Практика написания тестов: unit, integration (Jest / Vitest). — Понимание финансовой логики: двойная запись, согласованность данных, идемпотентность операций. — Умение работать с Docker, базовые знания CI/CD-процессов. Будет большим плюсом: — Опыт работы с blockchain-нодами или крипто-SDK (web3.js, ethers.js, BitcoinJS и др.). — Понимание устройства EVM-сетей, UTXO-модели, механизмов подтверждения транзакций. — Опыт в fintech, payment processing или криптовалютных проектах. — Знакомство с KYC/AML-процессами на уровне интеграций. — Опыт с ClickHouse для аналитических нагрузок. — Опыт настройки observability: Prometheus, Grafana, structured logging. Условия: — Работа в небольшой, профессиональной и живой команде без бюрократии. — Ценим инициативу, ответственность и внимание к деталям. — Гибкий формат работы: полностью удалённо, свободный график. — Конкурентная оплата труда.

Location: Remote Portugal, Portugal; Remote Poland, Poland Workplace: remote WELCOME TO OLX   We're building marketplace sustainable ecosystems that millions of people depend on every month – to buy and sell cars, find homes, land jobs, and trade secondhand goods. It's commerce that matters: safe, smart, and environmentally responsible.   We do this with courage to innovate, commitment to outcomes, collaboration across 50+ nationalities and 7 markets, and a customer-led approach that puts real people first. Add a desire to win – and you get a culture that's ambitious, fast-moving, and built on trust.   Our brands – including AutoTrader, OLX, Otomoto Property24, and more – are loved by millions. And we're backed by Prosus, one of the world's largest tech investors.   Join OLX and see how far you can go. Join Our Team as an AI-native Staff Backend Engineer!  Join one of our cross-functional teams in Motors, Real Estate, OLX Classifieds, or Platforms, working remotely from Portugal. Are you someone who is craving scalable problems and dealing with optimizations? You'll work with a creative, critical, and well-organized team from the comfort of your house, but as close as we have ever been! You will play a key role in enabling our organisation to scale efficiently. Who we are looking for: You can use agentic workflows (Claude Code, Cursor Agent, or equivalent) as your default, not as a novelty. You practice context engineering, not just prompt engineering;  you design the full information architecture an AI agent needs to succeed: repo structure, CLAUDE.md / AGENTS.md configs, relevant code context, memory, and tool access. You understand model routing trade-offs (e.g., when to use Haiku vs. Sonnet vs. Opus) and multi-agent orchestration. Strong ownership instinct: AI output is a first draft, not a deliverable; you validate, refactor, and take full accountability. You have strong Coding and Computer Science Fundamentals. Roughly ⅔ of your time will be hands-on technical work: designing solutions, steering and reviewing AI-generated code, developing new ideas, and reviewing others' contributions. The rest goes to cross-team influence, mentoring, and strategic alignment. Strong background experience in Golang, Java/Kotlin (preferred technologies), and able to work with PHP. Flexible and capable of adjusting to changing project requirements, roles, and backend technologies as needed. Scalable Systems Expertise. Experience with large-scale web applications, an economic-thinking mindset, and being able to design well-bounded future-proof domain systems, aligned with the business objectives. Deep expertise in scalable distributed systems, CI/CD, RESTful and GraphQL APIs, AWS, and relational + NoSQL databases. Big-picture thinker: aligns technical decisions with business strategy, influences without authority. Clear communicator in English across engineering, product, and leadership audiences. Self-starter who identifies what needs doing and takes initiative without waiting to be asked. Skilled Technical Leader and Mentor: Guide and support engineers by setting a strong example. As a Staff Engineer, you are a role model, leading by example and through your expertise. What you will be doing: Architect context pipelines for AI agents: curate what enters the context window (repo boundaries, domain knowledge, test outputs, CI feedback) so agents produce reliable, mergeable code, not just plausible code. Prepare task specifications that are agent-actionable (clear acceptance criteria, referenced modules, explicit constraints) Design and maintain agent-ready systems: well-bounded repos, comprehensive test suites as guardrails, CI/CD pipelines with structured output agents can parse and act on. Serve as an AI Champion: join and strengthen our growing AI Champion community, contribute to workshops, curate effective agentic workflows, and mentor engineers on AI-assisted practices. Contribute to org-level AI tooling evaluations and OLX AI practices repositories. Drive active migration from a legacy monolith to microservices, owning decisions on bounded domain decomposition. Working on making agentic workflows effective across a codebase whose boundaries are actively being redefined. Set the bar for GraphQL API design, RESTful contracts, database schema, and CI/CD quality across the tribe. Work with product and engineering leadership to identify high-value problems, propose initiatives, and drive impactful technical direction without direct authority Guide senior engineers in managing and reducing technical debt with AI as an accelerator, not a shortcut. Our Hiring Process: Recruiter Interview Managemnent Capabilities System Design Live Coding Our Benefits Permanent contract Salary + annual bonus up to 20% of your annual gross salary Work with and impact all OLX websites around the world Train and conference budget, and free access to Udemy courses Health insurance and life insurance MacBook Pro or a Windows Dell, along with the necessary accessories to make your work comfortable 100% remote work (and the possibility to work from our office in Lisboa) If you think this is the role for you, send your application in English and let’s talk! If you'd like to learn more about us take a look around our careers page and the OLX Group website. Follow us on Linkedin and check out our OLX Group Engineering Blog and Twitter Tech. Diversity, Equity and Inclusion at OLX OLX values diversity and welcomes applicants of all races, ethnicities, disabilities, ages, genders, sexual orientations, religions, backgrounds, and experiences to apply. If this role excites you, we encourage you to apply, even if you don’t meet all the requirements - you may be just the right fit for this or other opportunities with us!   OLX will process your personal data to assess your fit for the applied position. You may optionally consent to store your data for up to 12 months after the application process for consideration in future OLX roles. For more details on how your application data will be processed please check our Privacy Statement.