Вакансии

What you will do Write high-quality, performant backend code primarily in Go. Implement new microservices and responsibly manage migration away from legacy services.

Задачи: — Проектирование, реализация и оптимизация backend-сервисов — Участие в код-ревью и обсуждениях архитектуры системы — Взаимодействие с кросс-функциональными командами для создания надежных и высокопроизводительных систем — Поиск и устранение проблем в продакшене, анализ корневых причин — Поддержка развертывания, мониторинга и обслуживания систем в продакшене — Участие в дежурствах и руководство реагированием на инциденты при необходимости Требования: — Степень бакалавра или магистра в области компьютерных наук или смежных областях — Опыт разработки не менее 5 лет — Опыт программирования на современном C++ (C++11 и новее) — Знание Unix/Linux окружений — Хорошие коммуникативные навыки, умение решать проблемы и высокая ответственность Желательные навыки: — Хорошее понимание системного программирования — Опыт разработки систем с низкой задержкой (миллисекундный масштаб) и высокой пропускной способностью (>1K QPS на машину) — Опыт оптимизации сервисов и настройки производительности — Опыт работы с современными системами сборки — Опыт работы с инструментами автоматизации операций Язык: — Свободное владение английским или китайским языком Условия: — Работа в офисе в Токио, Япония — Возможность релокации и поддержка визы для международных кандидатов

-Интеграция новых L1 / L2 блокчейнов в существующую платежную инфраструктуру и сопровождение этих интеграций в продакшене. -Реализация и поддержка полного цикла работы блокчейн-сетей:

-Проектирование и создание удобного внешнего API для наших клиентов что бы они могли конструировать функционал под себя. -Переработка легаси сервисов и интеграций - перевод их на Go и вынос из монолита или поэтапная стабилизация с повышением предсказуемости и наблюдаемости в легаси PHP.

Разрабатывать и дорабатывать backend-сервисы по ТЗ от аналитиков и функциональных консультантов. Писать unit-тесты (обязательное требование).

За 2 месяца ты получишь практические навыки backend-разработки на Go и, если тебе ближе фулстек, frontend-разработки на React. Отправь резюме и сопроводительное письмо с GitHub, направлением (бэкенд или фулстек), вузом и курсом, а также напиши, можешь ли работать полный день с 9:00 до 18:00 все 2 месяца.

• ​Hands-on experience with card payments and payment integrations. • ​Understanding of payment flows, refunds, settlements and chargebacks.

Обязанности: Разрабатывать backend-сервисы и REST API. Проектировать микросервисную архитектуру.

Location: Paris; Warsaw; Lisboa; Berlin; Amsterdam; Milan; Krakow; Barcelona Workplace: Remote ABOUT VOODOO Voodoo is a consumer tech company founded in Paris in 2013, with one mission: entertain the world. Today we are 1,000 people, generating $1b+ in annual revenue, profitably. Our games and apps have passed 7 billion downloads and reach 200 million+ active users every month, making Voodoo the #3 mobile publisher worldwide in downloads, after Google and Meta. We were backed by Goldman Sachs, Tencent and GBL along the way. This position is ideally Paris-based. TEAM For this position, you will be an integral part of a newly established internal studio, a dynamic and focused team dedicated to one of our most promising prototype in scale. This studio is specifically chartered to improve this high-potential game up to the successful and market-ready title it is meant to become. You will be part of the team building Castle Busters, a turn-based multiplayer game, working alongside its client engineers and game designers as a full member of the game team. You will be part of a small group owning the backend that this game needs as its requirements become more specific and demanding. You’ll also be plugged into Voodoo's shared gaming backend platform - the same architecture and patterns that power titles like Mob Control and Block Jam 3D - building on it and contributing back, in close collaboration with the wider backend team. You get the focus and ownership of a dedicated game engineer with the leverage and support of a battle-tested platform behind you. This is a pivotal hire: Castle Busters is moving towards competitive multiplayer, which means moving game logic from the client to the server. You will be central to that transition. ROLE You will design and build the server-side foundation that takes Castle Busters from a client-authoritative game to a competitive, server-validated one. The current game computes everything on the device - progression, economy, and match outcomes alike, which won't hold up for competitive PvP. Your job is to change that. Working closely with client developers and game designers from feature design through delivery, validation and iteration, you will: - Build server-side validation for the metagame - currency, card upgrades, chest opens, and progression - staged by risk, replicating economy and reward logic on the server. - Move toward server authority for competitive features, where game state lives in one place and can be trusted. - Design APIs and player-state management that the Unity client integrates against, and help shape how client and server split responsibilities. The responsibilities are cross-functional, ranging from infrastructure, API design & coding all the way to client-side integration (we are using Golang). To succeed in this role, you will need to have passion for everything you do. You love to write code that scales to millions of users, are skilled at requirements gathering, champion new tech initiatives & leverage existing solutions. PROFILE - 7+ years of backend development experience - Strong knowledge of computer science fundamentals - Extreme fluency in Golang (At least 1 year in a professional environment) - Mastery of SQL and NoSQL - Background in high-scale systems - Understanding of Unix-like environments - AI-first mindset: Comfortable using AI daily and building custom agents or reusable automations to speed up your work - Experience working in cross-functional agile teams - Strong analytical skills with a track record of solving complex problems related to scalability, performance, and integration in high-stakes environments. - Excellent interpersonal and communication skills, capable of influencing teams and interfacing effectively with various stakeholders. - Ability to be self sufficient and work autonomously. - A deep interest in game development is a plus. BENEFITS - Best-in-class compensation - Other benefits according to the country you reside

Location: Paris Workplace: Hybrid ABOUT VOODOO Voodoo is a consumer tech company founded in Paris in 2013, with one mission: entertain the world. Today we are 1,000 people, generating $1b+ in annual revenue, profitably. Our games and apps have passed 7 billion downloads and reach 200 million+ active users every month, making Voodoo the #3 mobile publisher worldwide in downloads, after Google and Meta. We were backed by Goldman Sachs, Tencent and GBL along the way. This position is Paris-based, with relocation support available. TEAM For this position, you will be an integral part of a newly established internal studio, a dynamic and focused team dedicated to one of our most promising prototype in scale. This studio is specifically chartered to improve this high-potential game up to the successful and market-ready title it is meant to become. You will be part of the team building Draft Showdown, a turn-based multiplayer game, working alongside its client engineers and game designers as a full member of the game team. You will be part of a small group owning the backend that this game needs as its requirements become more specific and demanding. You’ll also be plugged into Voodoo's shared gaming backend platform - the same architecture and patterns that power titles like Mob Control and Block Jam 3D - building on it and contributing back, in close collaboration with the wider backend team. You get the focus and ownership of a dedicated game engineer with the leverage and support of a battle-tested platform behind you. This is a pivotal hire: Draft Showdown is moving towards competitive multiplayer, which means moving game logic from the client to the server. They are also implementing cheat detection safeguards to the game. You will be central to that transition. ROLE You will design and build the server-side foundation that takes Draft Showdown from a client-authoritative game to a competitive, server-validated one. The current game computes everything on the device - progression, economy, and match outcomes alike, which won't hold up for competitive PvP. Your job is to change that. Working closely with client developers and game designers from feature design through delivery, validation and iteration, you will: - Build server-side validation for the metagame - currency, card upgrades, chest opens, and progression - staged by risk, replicating economy and reward logic on the server. - Move toward server authority for competitive features, where game state lives in one place and can be trusted. - Implement and improve matchmaking and cheat detection safeguards for a Deterministic lockstep PvP architecture - Design APIs and player-state management that the Unity client integrates against, and help shape how client and server split responsibilities. The responsibilities are cross-functional, ranging from infrastructure, API design & coding all the way to client-side integration (we are using Golang). To succeed in this role, you will need to have passion for everything you do. You love to write code that scales to millions of users, are skilled at requirements gathering, champion new tech initiatives & leverage existing solutions. PROFILE - 5+ years of backend development experience - Strong knowledge of computer science fundamentals - Extreme fluency in Golang (at least 1 year in a professional environment) - Mastery of SQL and NoSQL - Background in high-scale systems - Understanding of Unix-like environments - AI-first mindset: Comfortable using AI daily and building custom agents or reusable automations to speed up your work - Experience working in cross-functional agile teams - Strong analytical skills with a track record of solving complex problems related to scalability, performance, and integration in high-stakes environments. - Excellent interpersonal and communication skills, capable of influencing teams and interfacing effectively with various stakeholders. - Ability to be self sufficient and work autonomously. - A deep interest in game development is a plus. - Based or willing to relocate in Paris BENEFITS - Best-in-class compensation - Other benefits according to the country you reside

Реализация и внедрение нового функционала Apache Superset. Реализация и внедрение утилит для автоматизации экспорта-импорта ассетов Apache Superset.

Ищем студентов и начинающих разработчиков, готовых развиваться в backend-разработке на Java. * Знание Java 17+.

• Понимание технологии PKI и принципов работы аккредитованного УЦ. • Практический опыт разработки сервисов УЦ, включая личный кабинет и интеграции со СМЭВ.

По задачам это балансы, интеграции с карточными и крипто-провайдерами.

-Design and build systems from the ground up without cutting corners on security or usability. -Develop signing infrastructure and applications to run inside secure computing environments.

• Высшее или среднее специальное образование в области ИТ. • Знание ООП, SOLID, CQRS.

Real Backend arxitekturasi. REST API yaratish.

Location: Lisbon, Portugal At Catawiki, every day brings the extraordinary! Whether it’s Daniel Ricciardo’s Formula 1 Car , a Woolly Mammoth’s Skeleton , Lady Gaga's Jumpsuit or Usain Bolt’s running shoe , we encounter exceptional objects every day. We’re a one-of-a-kind marketplace for buying and selling special objects. Each week, more than 100,000 unique items are auctioned, all carefully curated by our passionate in-house experts. Having sold over 25 million unique objects, our mission is to become the world’s most popular destination for special objects. As a growing, diverse and sustainable scale-up, we proudly live by three core values. If these values resonate with you, we’d love to explore how you can join us. Taking ownership and driving impact Being open to change and feedback Being passionate about our mission and our customers. Important Notice : While we don't currently have an immediate opening for a Backend Engineer in Portugal, we're proactively building a talent pipeline for future opportunities. If your profile aligns with what we're looking for, we'd love to consider you as new positions become available. Your Mission On our path to becoming the most visited online curated marketplace for special objects, our Engineering team is on a mission to deliver the best experience across our platforms by building best-in-class products for search and discovery, bidding, curation, logistics, payments, and support. We’re a scale-up tackling customer-facing challenges at high scale, with 75,000 auctions per week and more than 10 million visitors per month. As a Backend Engineer , you’ll support one of our three verticals - Demand , Supply , or Fulfilment - improving and delivering product innovations for our platform. Working in a small, fully autonomous, and highly collaborative Agile team, you will build scalable, maintainable, and resilient microservices and features. That’s why we’re looking for developers who share ideas, explore options, and communicate openly. What You'll Do You’ll be part of a team with end-to-end responsibility for its own microservices, collaborating across disciplines to build, operate, and continuously improve our products. Build end-to-end by designing, developing, testing, deploying, maintaining, and improving scalable microservices and features. Own what you deliver , taking responsibility for the quality, resilience, and maintainability of your team’s services throughout their lifecycle. Collaborate across disciplines while closely working with product designers, product owners, and frontend, backend, and mobile engineers to share ideas and deliver product innovations. Improve how we work , identifying opportunities to make our engineering processes more effective and efficient. Strengthen our engineering culture by documenting and advocating for development best practices across the team. Raise product quality by fixing bugs and refactoring the codebase where necessary to keep our products reliable and maintainable. Learn and experiment by testing new technologies and participating in Technical Week - a week dedicated to creativity, innovation, and knowledge sharing across domains after every two product sprints. What You'll Bring You understand the full lifecycle of web development, identify opportunities, explore solutions, and keep customer needs at the center of your work. Our stack is mainly focused on Ruby; however, prior Ruby experience is not essential if you’re passionate about learning new things. Strong software engineering foundations : 7+ years of software development experience, specifically with object-oriented programming. Relevant product experience : 3+ years of experience working with customer-facing products in industries such as e-commerce, fintech, or SaaS. Backend service expertise : Experience designing, implementing, and deploying backend services with a focus on high availability, low latency, and consistency. API and data knowledge : A good understanding of API design, SQL, and relational databases. Clear communication : Excellent English communication skills and comfort raising concerns, sharing ideas, and documenting your work. Collaborative mindset : You contribute to the team, take initiative, and step in to help when needed. Solution-oriented thinking : You actively identify opportunities and explore alternative approaches to solving problems. Commitment to growth : You take ownership of developing your skills by learning new technologies and seeking new opportunities. How We Work Our engineers work in small, fully autonomous, and highly collaborative Agile teams aligned with one of three verticals: Demand, Supply, or Fulfilment. Teams are responsible for their own microservices from design and development through deployment, maintenance, and improvement. Engineers collaborate closely with product designers, product owners, and frontend, backend, and mobile colleagues. We value bold thinking, curiosity, openness, initiative, and a strong customer focus. Technical Week creates dedicated space for experimentation, creativity, innovation, and knowledge sharing across domains. Where You'll Be This is a Hybrid role based in Lisbon. You will work from our Lisbon Hub a minimum of 2 days per week. At this time, we are only considering candidates who are already based in Portugal . As a result, visa sponsorship and relocation support are not available for this position . In Return You’ll be part of an enthusiastic, highly motivated team of 800+ Catawikians . A competitive Annual Gross Base Salary depending on your level, competencies, and overall experience. Meal Allowance Card stipend per working day, in addition to salary. Health Insurance from day 1 (including dental coverage), with access to multiple hospitals and clinics and a vast wellness network. A Work From Home Allowance to help with your monthly household bills. Commuting between your home and our office is covered by Catawiki. Amazing Office right in the centre of Lisbon. Why You'll Love Working with Us Create a visible impact by working at scale in a global organisation serving millions of customers across 80+ categories. In our flat structure, every role has a broad scope and directly impacts both our customers and the business. Learn and grow through our Learning & Development initiatives, including clear development plans and mentorship programmes to support your career progression. A culture of connection defines us . We’re a passionate, diverse team of 800+ Catawikians representing 60+ nationalities. We foster an inclusive and queer-friendly environment where everyone is encouraged to bring their full self to work. Celebrate life’s moments with us. You’ll receive a €100 Catavoucher when you join, a €50 Catavoucher on your birthday, and an extra day off each year to “Pursue Your Passion ” . We also offer additional leave for key work anniversaries and important life events. Benefits may vary by location. Our Offices and Way of Working Our vibrant offices in Amsterdam and Lisbon are designed to inspire collaboration. Most Catawikians operate in a hybrid setup, combining office-based and remote work, with a minimum of two days per week in the office, unless a role is explicitly stated as fully remote or fully office-based. Interested? Apply with an English CV and Cover Letter. By applying, you agree to Catawiki’s Applicant Privacy Policy. If you’re excited about this role but don’t meet every requirement, we still encourage you to apply anyway. You may be just the right candidate for this or other roles. We may use artificial intelligence (AI) tools to support the review of your application. AI may help us assess how your experience matches the requirements of the role, but hiring decisions are always made by our recruitment team