Location: Malaga
The Role
Our Development team in Malaga is growing and we are now looking for a Senior Backend Software Engineer to join! Our Campaigns & Rewards unit at Betsson Group ensures our customers come back for more. It’s all about loyalty. We provide a world class customer experience beyond the game play featuring Tournaments, Dynamic personalized campaigns and much more!
You will be part of preparing our journey to containerization, increasing the scalability of our systems while also maintaining their high quality. To accommodate new requirements, we are constantly re-evaluating our systems design and working on exciting new features.
What you'll do:
Design and develop distributed backend services using .NET and event-driven architecture.
Collaborate with product and commercial teams to turn engagement ideas into scalable, maintainable, and user-friendly solutions.
Optimize our microservice ecosystem for performance, reliability, and observability.
Drive our containerization and cloud migration strategy forward.
Participate in architecture discussions and help shape technical decisions.
For senior engineers
: Lead architectural decisions and proactively identify areas for improvement.
Write maintainable, well-tested code and conduct code reviews.
Participate in incident resolution and the team’s on-call rotation.
Maintain clear technical documentation such as ADRs, runbooks, and guidelines.
Build and share your domain expertise within the team.
What Tech Stack you'll be working with:
We don’t expect you to know everything listed below – but the more you’re familiar with, the better. What matters most is your ability to learn, collaborate, and write high-quality, maintainable code.
Core Technologies
These are essential to the role, and we’re looking for solid experience here – especially for senior candidates.
Languages & Frameworks
: C#, .NET (modern versions after .NET Core)
Databases
: SQL Server, PostgreSQL, Redis, Couchbase
(experience with relational or document databases, including indexing and query optimization, is a strong plus)
Cloud & Containers
: AWS, Kubernetes, Docker
(experience with any major cloud provider or containerization platform is valuable)
Testing & Quality
: xUnit/NUnit, mocking frameworks, k6 for load testing
(understanding of unit, integration, and performance testing is more important than specific tools)
Additional Tools & Practices
Familiarity with these of similar tools and concepts is a plus.
Messaging & Microservices
: Web APIs, Apache Kafka, RabbitMQ, Orleans
(experience with any messaging or actor-based system is valuable)
Observability
: Prometheus, Grafana, Loki, Splunk
(or experience with other observability stacks)
CI/CD
: GitHub Actions, trunk-based development, progressive delivery
(familiarity with continuous delivery pipelines and deployment strategies is more important than specific tooling)
Architecture
: Domain-driven design, event sourcing, actor model, distributed systems at planet-scale
Ways of Working
: Agile and Lean principles, DevOps mindset, strong collaboration
What we offer
25 working days of paid vacation.
Private health and life insurance.
Flexible compensation package for transport, meals, and more!
Hybrid work policy for the best of office and home.
Up to 10 days per year working remotely from abroad.
€300 yearly wellness allowance.
Office perks to make your day easier.
Referral program with a bonus for successful hires.
Intensive summer schedule in August for extra flexibility and work-life balance.
We can also offer you an environment full of ambition and passion. One day is never like the other as the only constant is change, to the better, to the greater. We strive to be the best in whatever field we choose to play on, and we make sure to have fun along the way!
Challenge accepted?
By submitting your application, you understand that your personal data will be processed as set out in our
Privacy Policy
Location: Warszawa, Poland; Sarajevo, Bosnia and Herzegovina; Bucharest, Romania; Belgrade, Serbia; Berlin, Germany; Lisboa, Portugal
Workplace: fully
Who We're Looking For
An experienced engineer who knows distributed systems not just from documentation - but from production incidents, cluster tuning under load, and writing runbooks that people actually use.
👍
English:
upper-intermediate+
🌍 Location:
Portugal, Poland, Romania, Bosnia Herzegovina, Serbia, Germany, Turkey, Armenia, Georgia, EU
This is a long-term project with an expected duration of
3 years
.
At least 3 years of proven experience in:
• Administration and operation of distributed messaging platforms, including RabbitMQ and Apache Kafka;
• Operational management of Apache Spark workloads, including deployments, scalability, and monitoring;
• Troubleshooting and support for distributed infrastructures and critical data environments;
• Implementation of governance, security, and continuous monitoring practices for messaging and data platforms;
• Production of technical documentation, architecture, and operational procedures.
Proven experience of at least 2 years in:
• AMQP, topics, queues, partitions, offsets, delivery guarantees, and message ordering;
• Configuration and tuning of Kafka clusters and RabbitMQ environments in production;
• DataOps practices and automation (Ansible, Terraform, Python/Bash scripts);
• Advanced integration between messaging platforms and data pipelines
Proven experience of at least 1 (one) year in:
• Operation and administration of ingestion systems such as Debezium or Apache NiFi;
• Docker and Kubernetes for managing containerized environments
• Certification in messaging administration.
What we offer
Model: B2B contract with Bonapolia - one contract, one monthly invoice
Rate: negotiated per candidate seniority and client budget
Payment: monthly invoice, paid on the same schedule the client pays us (usually 30 days)
Contract written under your country's law
We handle the client-side paperwork: MSA, NDA, invoicing
🏢
About Bonapolia
Bonapolia is a family-owned IT staff augmentation team based in Lisbon. We build engineering teams for product companies and IT consultancies across Europe and the US.
More at
bonapolia.com
📩 Ready to Join?
We look forward to receiving your application and welcoming you to our team!
seniorWarszawa, Poland; Sarajevo, Bosnia and Herzegovina; Bucharest, Romania; Belgrade, Serbia; Berlin, Germany; Lisboa, Portugal
ФОДЖИН занимается разработкой и дизайном цифровых продуктов для крупных клиентов (Сбер, МТС, Т‑банк, Газпром и др.). В команду требуется Python‑разработчик для развития отдела и работы над непримитивными задачами.
Требования:
— Коммерческая разработка на Python от 2 лет
— Опыт работы с PostgreSQL
— Понимание асинхронности (asyncio / aiohttp) и микросервисной архитектуры
— Опыт использования фреймворков/библиотек для AI‑агентов (LangChain, LangGraph и др.)
— Опыт работы с брокерами сообщений Kafka или RabbitMQ
— Опыт работы с Docker, CI/CD, Kubernetes
Условия:
— Зарплата: от 120 000 ₽
— Можно удаленно
— Полный день, трудоустройство по ТК РФ
— Поддержка HR и ментора, уютные офисы в ЮФО, корпоративная жизнь, компенсации на подписки, спорт, образование и здоровье
УдалённоmiddleГеография найма не уточнена, офис: Ростов-на-Дону
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.
Location: London
DRW
is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk.
Headquartered in Chicago with offices throughout the U.S., Canada, Europe, and Asia, we trade a variety of asset classes including Fixed Income, ETFs, Equities, FX, Commodities and Energy across all major global markets. We have also leveraged our expertise and technology to expand into three non-traditional strategies: real estate, venture capital and cryptoassets.
We operate with respect, curiosity and open minds. The people who thrive here share our belief that it’s not just what we do that matters–it's how we do it.
DRW
is a place of high expectations, integrity, innovation and a willingness to challenge consensus.
UP (Unified Platform) consolidates data and technologies into a comprehensive solution, accelerating time to market. Optimizing decision-making and research, our platform simplifies implementing new ideas, enhancing our competitive edge. We work from high-level requirements where programmers are expected to gain an intimate understanding of the business. We strive for an environment where developers have the autonomy to pursue business solutions without arbitrary management constraints. We are a group of polyglots and technologists always seeking to find the right tool for each problem. Broadly, the development teams at DRW believe in rapid deployment and feedback, automated testing, and cohesive, transparent, lightly coupled service architectures.
UP teams are segmented into multiple areas including:
Platform Engineering -
Teams within platform engineering provide cross-cutting capabilities that enable other teams to focus on domain- or business-specific needs by streamlining and standardizing technical approaches. For example, one of these teams provides data table, identity and access management, and pub-sub capabilities as a service to engineering teams.
Domain Engineering -
Teams within domain engineering have critical capabilities that extend beyond a single trading strategy or business area. They build services and data products to optimize a broad array of use cases. For example, one team processes third-party trade and order feeds in real time to keep DRW informed of its trading activity. Another team manages DRW’s proprietary investment book of record providing latency-sensitive ingestion of the firm’s trading activity and providing both real-time and on-demand analytics.
We are passionate about finding the best team and role for each candidate through the interview process, as we learn more about each person's current skills and long-term development goals.
Expectations:
Building systems with a constant focus on testing, reliability, scalability, and maintainability.
Designing, modeling, and programming in a variety of languages and technologies.
Working on legacy code as well as green field development.
Initiative driving projects to completion.
Learning and promoting new technologies with a focus on best practices.
Providing on-call support as needed.
Sometimes working alongside other developers on the same task.
Desirable Experience:
We are looking for strong developers of any stripe, but familiarity with the below will give candidates a leg up in working on our systems.
Multiple years of server-side development.
A solid understanding of micro-service architectures and CAP theorem.
A good understanding of functional paradigms and type theory.
Confident JVM knowledge.
Modern programming languages knowledge in our primary languages (Java, Python, Clojure).
Experience with Airflow or other Python-based workflow orchestration tools.
Proficiency in domain-driven design and domain modeling.
Exposure to Kubernetes, Docker, Linux, Kafka, RabbitMQ, or git.
Working knowledge of SQL, HTML, CSS, and JavaScript.
Using AI coding assistants to accelerate development while owning the outcome.
Exposure to agentic frameworks or MCP server development.
Knowledge of financial concepts, exchange trading, or physical energy trading.
For more information about DRW's processing activities and our use of job applicants' data, please view our Privacy Notice at
https://drw.com/privacy-notice
.
California residents, please review the California Privacy Notice for information about certain legal rights at
https://drw.com/california-privacy-notice
.
#LI-MM1
Location: Manila, Philippines
Workplace: hybrid
At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio. We are currently seeking a
Software Solutions Engineer
to join one of our
clients
' teams. If you're looking for an exciting opportunity to grow in a innovative environment, this could be the perfect fit for you.
As a Software Solutions Engineer, you play an important role in the Innovation team, helping to scout, validate and fast-track new ideas that can shape the next generation of the BankWorks platform.
The role is ideal for a curious, hands-on and solution-oriented personality who enjoys experimenting with new technologies, building prototypes and working closely with technical, product and operational teams.
Responsibilities:
● Analyse technology trends in payments/fin-tech industry and adjacent sectors, maintaining up-to-date knowledge of technological developments.
● Convert rough concepts into PoC/MVP implementations, adhering to deadlines.
● Participate in and seek to continuously improve the software life cycle phases, focusing on designing, coding, documenting, testing and support
● Produce concise design notes, demo scripts, and handover documentation for smooth transition to other teams
● Collaborate effectively in cross-functional teams through pairing, brainstorming sessions, and knowledge sharing to meet defined objectives
● Contribute to and maintain the team's internal knowledge-base
● Ensure a high quality/standard of work and service throughout
● Communicate effectively and professionally with internal and external customers
● Perform other duties which may be assigned from time to time
● May be required to work extended hours to meet deadlines and/or be on-call
● Follow all company policies and procedures
● Diploma or Bachelor’s degree in ICT or related professional qualifications
● Solid understanding of the software development life cycle and agile/lean methodologies
● A strong sense of curiosity and willingness to learn new technologies
● Comfortable working in ambiguous, iterative, and exploratory settings
● Strong analytical reasoning, organizational and time-management skills with ability to prioritize tasks and meet deadlines under pressure.
● Be proficient in software development, with ability to use more than one of the following development languages:
-Front-end: Java, Javascript, SQL
-Back-end: Java, PL/SQL
-Real-time: C/C++, PL/SQL, Lua
● Have good knowledge of the following relational database management systems
-Oracle, PostgreSQL, MySQL
● Bonus points for experience or exposure to:
o Modern software architecture patterns (microservices, RESTful services)
o High-volume data streaming technologies (Kafka, RabbitMQ)
o Scripting languages (e.g., Ruby, Python, Bash)
o DevOps tools (e.g., Git, Jenkins)
o Containerisation and cloud environments (Docker, Kubernetes)
● Able to work effectively in a collaborative team environment
● Meticulous, methodical and accurate in the completion of tasks
● Strong communication and writing skills in English
● Willing to work extended hours and be on-call when required
● Experience in writing software for the financial and/or payment industry is preferred
TrafficStars — международная AdTech-компания с highload-инфраструктурой: 10+ млрд рекламных показов в день, 1M+ RPS в пиковые часы, 500+ серверов в Европе и США, ClickHouse cluster на 3.6 PB данных.
Ищем Senior Python Developer в API vertical — команда занимается корпоративными API, интеграциями с внешними сервисами и системами управления стоимостью рекламы.
Что важно:
— сильный Python (internals, AsyncIO, typing, profiling)
— уверенный FastAPI
— опыт highload сервисов (10k+ RPS)
— PostgreSQL / ClickHouse
— хороший SQL
— Kafka / RabbitMQ
— понимание архитектуры и production engineering
Будет плюсом:
- опыт в AdTech / FinTech
- понимание Go
- Linux/networking troubleshooting
Что предстоит:
• разрабатывать и развивать Python-сервисы
• оптимизировать производительность
• участвовать в архитектурных решениях
• работать с highload и legacy production-системами
• code review и поддержка качества кода
Что предлагаем:
- зарплата выше рынка
- полная релокация на Кипр
- визовая поддержка для семьи
- жильё на первый месяц
- MacBook или PC на выбор
- медстраховка
- спорт, английский, обеды и снеки
- сильная инженерная команда без бюрократии
seniorSENIOR PYTHON DEVELOPER | TRAFFICSTARS (ADTECH) | RELOCATION TO CYPRUS | #relocation to #cyprus #backend #developer #fulltime #itjob #adtech #python https://teletype.in/@courierus/oYv8yOHUznw; Senior Python Developer | TrafficStars Лимассол, Кипр | relocation TrafficStars — международная AdTech-компания с highload-инфраструктурой: • 10+ млрд рекламных показов в день • 1M+ RPS в пиковые часы • 500+ серверов в Европе и США • ClickHouse cluster на 3.6 PB данных Ищем Senior Python Developer в API vertical — команда занимается корпоративными API, интеграциями с внешними сервисами и системами управления стоимостью рекламы; Что важно: — сильный Python (internals, AsyncIO, typing, profiling) — уверенный FastAPI — опыт highload сервисов (10k+ RPS) — PostgreSQL / ClickHouse — хороший SQL — Kafka / RabbitMQ — понимание архитектуры и production engineering Будет плюсом: - опыт в AdTech / FinTech - понимание Go - Linux/networking troubleshooting Что предстоит: • разрабатывать и развивать Python-сервисы • оптимизировать производительность • участвовать в архитектурных решениях • работать с highload и legacy production-системами • code review и поддержка качества кода Что предлагаем: -зарплата выше рынка - полная релокация на Кипр - визовая поддержка для семьи - жильё на первый месяц - MacBook или PC на выбор - медстраховка - спорт, английский, обеды и снеки - сильная инженерная команда без бюрократии CONTACT https://t.me/pollid8
Требования:
- Опыт работы в QA от 4 лет.
- Опыт тестирования мобильных и веб-приложений от 4 лет.
- Опыт работы с Rest API.
- Опыт работы с SQL/NoSQL базами данных на уровне сложных запросов и выгрузок (join, View и др.).
- Опыт покрытия новых функциональностей с помощью инструментов автотестирования на Java.
- Опыт работы с интеграционным тестированием.
- Опыт работы с CI/CD (Jenkins, GitlabCI).
- Опыт работы с брокерами сообщений (Kafka, RabbitMQ и аналоги).
- Опыт работы с мок-сервисами (Wiremock или аналоги).
Опыт работы с инструментами:
- SOAP UI, Postman, Jira, Confluence, Git, IntelliJ IDEA, Bitbucket.
Дополнительным плюсом будет:
- Опыт работы с системами на микросервисной архитектуре (Spring Cloud, Kubernetes, Openshift или аналоги).
- Опыт работы с системами кэширования (Redis, Hazelcast).
Условия:
- 5-дневная рабочая неделя с гибким началом дня (с 8:00 до 11:00 по МСК).
- Полностью удалённый формат работы.
- Современные и интересные задачи на проекте.
Location: Lisbon
Workplace: hybrid
Spin.AI is a global SaaS cybersecurity company that protects mission-critical data across Google Workspace, Microsoft 365, Salesforce, Slack & more. Our product — SpinOne — is a platform that combines SSPM, ransomware protection, DLP, backup & recovery for enterprise customers worldwide.
We're looking for a Backend Developer with strong Java and Spring Boot experience to join our engineering team.
You'll work on a large-scale cybersecurity SaaS platform, building new product capabilities, developing cloud integrations, improving platform reliability, and solving complex engineering challenges that directly impact enterprise customers worldwide.
This role is based in our Lisbon office in a hybrid format. If you are not currently in Portugal, we are open to remote work during the trial period, with relocation to Lisbon afterward.
🛠 Architecture
You'll be working on a distributed backend platform built around a
service-based architecture
with
30+ independently deployable services
.
Our backend ecosystem includes:
Java 19 & Spring Boot
Service-based architecture (30+ services)
Eureka Service Registry
REST APIs with OpenFeign
RabbitMQ for asynchronous communication
PostgreSQL
Shared databases for selected services
🚀 What You'll Build
You'll work on backend services powering SpinOne, including:
Backup & Recovery functionality
Google Workspace, Microsoft 365, Salesforce and Slack integrations
Enterprise access control and permissions
Audit logs and administration features
Data synchronization and processing pipelines
High-volume asynchronous workflows
Cloud storage integrations
Some of the upcoming engineering challenges include:
Building a new
Google Directory Backup
integration
Designing scalable data storage for Google APIs
Developing backup and restore processes
Supporting migrations to new third-party APIs (e.g. Microsoft Graph)
Making integrations resilient to API limitations, retries and partial failures
🤝 Responsibilities & Engineering Culture
After the onboarding period, you'll own features throughout their entire lifecycle.
This includes:
analyzing business requirements and identifying missing scenarios
discussing requirements with Product Owners
participating in technical planning and estimation
designing technical solutions together with the team
implementing features
writing and maintaining tests
participating in code reviews
fixing QA findings
supporting releases
monitoring production after release
investigating production issues and customer-reported defects
Our engineers are expected to take ownership, proactively suggest improvements, and actively participate in technical discussions.
📌 Must-have Requirements
4+ years of commercial backend development experience.
Strong experience with Java and Spring Boot.
Experience with Java 19.
Experience with MyBatis.
Strong knowledge of PostgreSQL.
Confident SQL skills.
Experience analyzing and optimizing query execution plans.
Understanding of indexes and database performance basics.
Experience with RabbitMQ or similar message brokers.
Experience with REST API development and integration.
Ability to work with complex product logic and enterprise-level workflows.
Good communication skills and ownership mindset.
English: Intermediate+.
🌍 Why Spin.AI
Work in a fast-moving, high-impact cybersecurity company recognized by
Gartner, Forrester, and G2
.
Work on a real product with real users and visible business impact
Work on an interesting and large-scale product
Solve complex, non-trivial security and engineering challenges
Opportunity to influence technical and product decisions
Trust from management and autonomy in day-to-day work
Strong, professional team with deep expertise
🎁 What we offer
Annual performance-based salary review
Annual performance-based bonus
Referral bonuses
Educational budget
Sport & hobby compensation
Medical insurance compensation
Company presents (birthdays, anniversaries, weddings, etc.)
Corporate travel parties twice a year
Location: Chicago
DRW
is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk.
Headquartered in Chicago with offices throughout the U.S., Canada, Europe, and Asia, we trade a variety of asset classes including Fixed Income, ETFs, Equities, FX, Commodities and Energy across all major global markets. We have also leveraged our expertise and technology to expand into three non-traditional strategies: real estate, venture capital and cryptoassets.
We operate with respect, curiosity and open minds. The people who thrive here share our belief that it’s not just what we do that matters–it's how we do it.
DRW
is a place of high expectations, integrity, innovation and a willingness to challenge consensus.
The
UP-Trade Operations
team builds software that enables DRW's trading operations teams to manage our growing DeFi footprint. A big part of what makes this work interesting is figuring out where DeFi instruments map to traditional financial concepts, where they extend them, and where they are something entirely new. We need engineers who can reason about these protocols financially, not just technically, and build reliable systems around them at institutional scale.
We work from high-level requirements where programmers are expected to gain an intimate understanding of the business. We strive for an environment where developers have the autonomy to pursue business solutions without arbitrary management constraints. We are a group of polyglots and technologists always seeking to find the right tool for each problem. Broadly, the development teams at DRW believe in rapid deployment and feedback, automated testing, and cohesive, transparent, lightly-coupled service architectures.
Problems You'll Work On:
Ingesting and normalizing data across multiple chains (Ethereum, Solana, and L2 rollups like Arbitrum) and custody platforms
Integrating with DeFi protocols -- AMMs, lending platforms, options vaults, staking providers -- to query on-chain state and track positions
Building services that bridge on-chain activity to off-chain reporting: token balances, transfers, margin positions, settlement, and fees across different ERC standards
Developing APIs and UIs that give traders and operations teams real-time visibility into DeFi positions and risk
Modeling DeFi instruments (liquidity pools, lending markets, perpetuals, yield products) alongside their traditional finance equivalents for unified reporting and risk
Responsibilities:
Building systems with a constant focus on testing, reliability, scalability, and maintainability
Designing, modeling, and programming in a variety of languages and technologies
Working on legacy code as well as greenfield development
Taking initiative and driving projects to completion
Learning and promoting new technologies with a focus on best practices
Providing on-call support as needed
Sometimes working alongside other developers on the same task
Professional Experience:
We expect strong engineering fundamentals, but what truly sets candidates apart is hands-on experience navigating the DeFi landscape.
DeFi & Blockchain:
Hands-on experience with EVM internals, smart contract ABIs, and libraries like ethers.js or web3.js
Familiarity with DeFi protocols: AMMs (Uniswap), lending (Compound), options/structured products, or staking
Understanding of multi-chain architectures -- L1s, L2 rollups, bridging, and cross-chain data challenges
Exposure to Solana or other non-EVM chains is a plus
Experience with oracle systems (Chainlink) or on-chain pricing
Ability to reason about DeFi protocols from a financial perspective, e.g. how different AMM designs affect pricing, how lending rates compare across protocols, or what distinguishes different stablecoin mechanisms
Engineering & Stack:
Multiple years of server-side development
Willingness to learn Clojure, one of the team's primary languages
Confident JVM knowledge
Working knowledge of Node.js/TypeScript
A solid understanding of micro-service architectures
Proficiency in domain-driven design and domain modeling
A good understanding of functional paradigms and type theory
Infrastructure & Tools:
Kubernetes, Docker, ArgoCD
PostgreSQL, Oracle, SQS, RabbitMQ
Linux, Ansible, Nginx, Git
The annual base salary range for this position is $130,000 to $225,000 depending on the candidate’s experience, qualifications, and relevant skill set. The position is also eligible for an annual discretionary bonus. In addition, DRW offers a comprehensive suite of employee benefits including group medical, pharmacy, dental and vision insurance, 401k (with discretionary employer match), short and long-term disability, life and AD&D insurance, health savings accounts, and flexible spending accounts.
For more information about DRW's processing activities and our use of job applicants' data, please view our Privacy Notice at
https://drw.com/privacy-notice
.
California residents, please review the California Privacy Notice for information about certain legal rights at
https://drw.com/california-privacy-notice
.
#LI-GV1
О РОЛИ
Мы ищем Senior-разработчика для развития высоконагруженного финтех-продукта. Работа с карточной инфраструктурой, процессингом транзакций и интеграцией банковских/блокчейн-сервисов. Роль подразумевает проектирование надежных backend-систем с фокусом на консистентность данных и работу с реальными платежными потоками.
ОСНОВНЫЕ ЗАДАЧИ
— Разработка и масштабирование backend-сервисов на Python (Django).
— Проектирование архитектуры транзакционных и учетных систем.
— Интеграция с внешними провайдерами: карточный процессинг, платежные шлюзы, банки, KYC/AML.
— Реализация webhook-систем с обеспечением идемпотентности и механизмов ретраев.
— Работа с базовыми ончейн-интеграциями (Web3).
— Оптимизация производительности и внедрение инженерных стандартов (Code Review).
ТРЕБОВАНИЯ К КАНДИДАТУ
— 5+ лет коммерческого опыта разработки на Python (Django, DRF).
— Профильный опыт в Fintech или разработке систем, связанных с транзакциями и рисками.
— Глубокое понимание жизненного цикла транзакций, принципов ACID и идемпотентности.
— Экспертные знания PostgreSQL: оптимизация сложных запросов, индексы, блокировки.
— Опыт проектирования систем (Monolith / Microservices / Event-driven).
— Навыки работы с Redis (очереди, кэширование, Rate Limiting).
— Способность самостоятельно принимать архитектурные решения и отвечать за результат.
БУДЕТ ПРЕИМУЩЕСТВОМ
— Опыт работы с карточными продуктами (Issuing / Acquiring) и биллингом (Ledger).
— Работа с очередями сообщений (Kafka / RabbitMQ).
— Понимание антифрод-систем, управления рисками или Event Sourcing.
— Опыт работы с Docker и Kubernetes в высоконагруженных системах.
УСЛОВИЯ РАБОТЫ
— Полностью удаленный формат работы.
— Сложные инженерные вызовы на стыке классического финтеха и Web3.
— Минимум бюрократии и высокая степень влияния на архитектуру продукта.
— Прямая ответственность за критически важные узлы системы.
Задачи:
— Интеграция с блокчейн-нодами: мониторинг on-chain событий, парсинг транзакций, управление подтверждениями (confirmations depth) в EVM-сетях и UTXO-цепочках (Bitcoin, Litecoin и др.)
— Разработка сервисов приёма и выплат: генерация адресов, hot/cold wallet логика, sweeping, fee estimation
— Построение надёжного транзакционного pipeline с идемпотентностью, reconciliation и двойной записью
— API для мерчантского кабинета: история операций, балансы, webhooks, управление выплатами
— Проектирование и поддержка REST / WebSocket API для фронтенда и внешних интеграций
— 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
— Практический опыт работы с блокчейном
— Понимание устройства EVM-сетей
— 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
— Понимание финансовой логики: двойная запись, согласованность данных, идемпотентность
— Опыт написания тестов: unit, integration
— Docker, базовые знания CI/CD
Будет плюсом:
— Опыт самостоятельной настройки и эксплуатации блокчейн-нод
— Опыт в fintech, payment processing или криптовалютных проектах
— Знакомство с KYC/AML-процессами и transaction screening (Chainalysis, Elliptic и аналоги)
— Опыт с ClickHouse для аналитических нагрузок
— Observability: Prometheus, Grafana, structured logging
Условия:
— Работа в небольшой, но профессиональной и живой команде без бюрократии
— Ценим инициативу, ответственность и внимание к деталям
— Гибкий формат работы: полностью удалённо, свободный график
— Конкурентная оплата труда (в USD / USDT / RUB)
Задачи:
— Разработка высоконагруженного финансового приложения;
— Реализация сервиса доставки;
— Развитие и сопровождение высоконагруженного приложения фиксации активности пользователей.
Требования:
— Опыт коммерческой разработки от 3-х лет;
— Уверенное программирование на Python или других скриптовых языках с желанием мигрировать на Python;
— Навык написания чистых SQL-запросов (без использования ORM);
— Желание решать сложные задачи;
— Умение эффективного взаимодействия в команде;
— Способность работать на результат и соблюдать дедлайны.
Условия:
— Заработная плата в зависимости от квалификации и уровня ответственности;
— Оформление по ТК РФ;
— Премии от 5 до 20% по итогам работы за месяц;
— Помощь опытного наставника на испытательный срок;
— Гибкое начало и окончание рабочего дня, свободный дресс-код;
— Оборудованное место в комфортном офисе или возможность работать из дома;
— Комфортный бизнес-центр на Московских воротах с зонами отдыха и кафе-столовой;
— Корпоративные скидки и бонусы от партнеров (обучающие курсы, товары и т.д.);
— Компенсация спортивных абонементов, ДМС;
— Подарки при рождении детей;
— Социальная поддержка при сложных жизненных ситуациях;
— Корпоративные праздники и совместные мероприятия.
Используемый стек технологий: C++, Python, PostgreSQL, Javascript, React, Node.js, SQLite, Redis, KeyDB, Clickhouse, Elastic Search, RabbitMQ, Kafka. Не нужно знать все технологии идеально, важна светлая голова и желание работать.
Location: Λευκωσία, Nicosia, Cyprus
About Wheely
Wheely is redefining premium transportation across major cities in Europe, the US, and the Middle East. We blend cutting-edge technology with the craft of five-star chauffeuring to deliver an experience trusted by more than 100,000 active riders and 1,200 corporate accounts.
We’re a profitable, fast-growing scale-up with $43M raised and over $100M in annual revenue. Having recently launched in New York City, we’re expanding rapidly across the US and EMEA. If you take pride in your craft and want to help shape the next chapter of our growth, we'd love to hear from you.
About The Role
Our Marketplace team builds the models and algorithms that balance supply and demand, optimising pricing and matching to ensure chauffeurs earn and passengers aren't left waiting.
We’re looking for a Mid/Senior Backend Engineer to join a team that keeps frameworks lean and focuses on what matters: clean, maintainable code, shipped fast with TDD, DDD, and continuous integration and delivery.
We are a Go shop, and while we’re busy migrating away from our Ruby monolith, our stack includes PostgreSQL, MongoDB, RabbitMQ, Redis, gRPC, and Thrift. Everything runs on AWS and Kubernetes, managed via Terraform.
Our interview process includes a recruiter screen, algorithms and live coding. Senior+ candidates also complete a system design section.
Responsibilities
Write high-quality, performant code primarily in Go.
Implement new microservices while helping us responsibly manage and migrate away from legacy services.
Work closely with product managers, designers, and data scientists to turn abstract requirements into concrete technical designs.
Ensure our systems stay responsive under heavy load, optimising for both latency and reliability.
Requirements
3+ years of experience (5+ years for seniors) building and maintaining scalable backend services.
We use Go. If you know it, great. If not, we’ll interview you in your strongest language (Python, C++, Ruby).
In-depth knowledge of relational and NoSQL databases (PostgreSQL, MongoDB, Redis) and experience with message brokers like RabbitMQ or Kafka.
Upper-Intermediate (B2) English proficiency or higher. You should be comfortable debating technical trade-offs with your peers.
What We Offer
Office-based role in Nicosia, four days a week with flexible start and finish times, plus one remote day of your choice
Competitive salary
Employee stock options plan
Private medical and dental insurance
Daily Lunch allowance
Latest-generation MacBook Pro and 4k display
Professional development stipend
Relocation support, including visa sponsorship and allowance
All of your personal information will be collected stored and processed in accordance with
Wheely’s Candidate Privacy Notice
Location: Λευκωσία, Nicosia, Cyprus
About Wheely
Wheely is redefining premium transportation across major cities in Europe, the US, and the Middle East. We blend cutting-edge technology with the craft of five-star chauffeuring to deliver an experience trusted by more than 100,000 active riders and 1,200 corporate accounts.
We’re a profitable, fast-growing scale-up with $43M raised and over $100M in annual revenue. Having recently launched in New York City, we’re expanding rapidly across the US and EMEA. If you take pride in your craft and want to help shape the next chapter of our growth, we'd love to hear from you.
About the Role
Our Mapping team tackles the spatial intelligence of the platform: road matching, low-latency ETA predictions, and processing thousands of coordinates every second to ensure every journey is accurately tracked.
We’re looking for a Mid/Senior Backend Engineer to join a team that keeps frameworks lean and focuses on what matters: clean, maintainable code, shipped fast with TDD, DDD, and continuous integration and delivery.
We are a Go shop, and while we’re busy migrating away from our Ruby monolith, our stack includes PostgreSQL, MongoDB, RabbitMQ, Redis, gRPC, and Thrift. Everything runs on AWS and Kubernetes, managed via Terraform.
Our interview process includes a recruiter screen, algorithms and live coding. Senior+ candidates also complete a system design section.
Responsibilities
Write high-quality, performant code primarily in Go.
Implement new microservices while helping us responsibly manage and migrate away from legacy services.
Work closely with product managers, designers, and data scientists to turn abstract requirements into concrete technical designs.
Ensure our systems stay responsive under heavy load, optimising for both latency and reliability.
Requirements
3+ years of experience (5+ years for seniors) building and maintaining scalable backend services.
We use Go. If you know it, great. If not, we’ll interview you in your strongest language (Python, C++, Ruby).
In-depth knowledge of relational and NoSQL databases (PostgreSQL, MongoDB, Redis) and experience with message brokers like RabbitMQ or Kafka.
At least 1 year of hands-on experience with mapping-related work such as processing noisy geospatial data, map-matching techniques, or road network graphs and routing algorithms.
Upper-Intermediate (B2) English proficiency or higher. You should be comfortable debating technical trade-offs with your peers.
Nice To Have
Driver-side intuition for navigation systems (rerouting behavior, GPS drift, missed turns, real-world edge cases).
Experience with routing engines like OSRM.
Proficiency in C++.
Familiarity with open geospatial datasets such as OpenStreetMap.
What We Offer
Office-based role in Nicosia, four days a week with flexible start and finish times, plus one remote day of your choice
Competitive salary
Employee stock options plan
Private medical and dental insurance
Daily Lunch allowance
Latest-generation MacBook Pro and 4k display
Professional development stipend
Relocation support, including visa sponsorship and allowance
All of your personal information will be collected stored and processed in accordance with
Wheely’s Candidate Privacy Notice
О ПРОЕКТЕ
Match Systems создает мощные экосистемы для криптоплатежей и передовые AML-комплексы (анализ и трекинг транзакций). Мы работаем на острие технологий, помогая делать блокчейн прозрачным и безопасным.
ВАШИ КЛЮЧЕВЫЕ ВЫЗОВЫ
— Highload Engine: Проектирование и развитие сверхнагруженных backend-сервисов на Python.
— Optimization: Поиск и устранение узких мест в производительности систем.
— Scalability: Масштабирование архитектуры для обработки огромных массивов данных.
— Quality: Проведение Code Review и внедрение культуры тестирования (Unit, Integration).
— Cross-Team: Синхронизация с командами для внедрения надежных решений.
ЧТО МЫ ЖДЕМ ОТ ВАС
— Solid Experience: 7+ лет в разработке на Python.
— FastAPI Pro: Глубокие знания и опыт работы с фреймворком.
— Asynchronous Master: Экспертное владение asyncio, threading, multiprocessing. Вы понимаете влияние GIL и знаете, когда выбрать I/O-bound или CPU-bound подход.
— Messaging: Уверенная работа с Kafka и RabbitMQ (понимание разницы между FIFO/LIFO и Pub/Sub).
— Protocols: Опыт разработки RESTful API, работа с gRPC и RPC.
— Database Skills: Владение PostgreSQL и мастерство использования ORM.
— Domain: Опыт в Crypto / Blockchain или разработке торговых ботов будет вашим преимуществом.
ПОЧЕМУ ЭТО КРУТО?
— Global Presence: Возможность работать из любой точки мира или наших хабов (Дубай, Сингапур).
— Complex Tasks: Реальные вызовы в одной из самых востребованных ниш (AML и блокчейн-безопасность).
— Hardcore Team: Работа в команде топовых экспертов отрасли.
— Growth: Профессиональный рост в среде, где технологии меняются каждый день.
Location: Canada; Serbia
Workplace: remote
ABOUT YOU
We are looking for a Senior Software Engineer (Full-Stack) who is architecturally strong, quality-driven, and highly collaborative to join our Engineering team. The best candidate will be someone who thrives in a fast-paced, highly collaborative, and exceptionally dynamic setting and is excited to lead full-stack architecture decisions, build scalable distributed systems, and drive shared platform strategies across backend, frontend, and cloud ecosystems.
Strong expertise in Go and React (JavaScript/TypeScript), along with deep knowledge of cloud-native architecture patterns and event-driven system design, is essential, along with experience in building and delivering commercial applications from concept to launch. The ability to design scalable service architectures, implement robust testing strategies (including integration and E2E), optimize performance across the full stack, and mentor other developers while collaborating across cross-functional teams will be key to your success in this role.
If you're passionate about building high-quality, resilient systems that scale and love designing seamless platform experiences powered by event-driven workflows, cloud infrastructure, and modern web interfaces that drive gaming, virtual currency, and digital commerce experiences, we would love to hear from you!
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.
Qualifications & Skills:
5+ years of professional software engineering experience, with a strong focus on full-stack development using Go and React (JavaScript/TypeScript)
Deep understanding of backend architecture patterns including microservices, event-driven architecture, and domain-driven design
Hands-on experience designing and building RESTful APIs and/or gRPC services in Go, with a focus on performance, reliability, and maintainability
Strong proficiency in React, including modern patterns such as hooks, context, and state management libraries (Redux, Zustand, or similar)
Proven experience with cloud platforms (AWS, GCP, or Azure), including containerization (Docker, Kubernetes) and infrastructure-as-code (Terraform, Pulumi, or similar)
Solid experience with message brokers and event streaming platforms such as Kafka, RabbitMQ, NATS, or similar technologies
Strong knowledge of relational and non-relational databases (PostgreSQL, MySQL, Redis, MongoDB, or DynamoDB)
Experience implementing CI/CD pipelines and automated testing strategies, including unit, integration, and end-to-end testing
Familiarity with observability and monitoring tools (Prometheus, Grafana, Datadog, or similar)
Strong understanding of distributed systems concepts such as eventual consistency, idempotency, fault tolerance, and retry strategies
Experience mentoring junior and mid-level engineers and contributing to architectural decision-making processes
Excellent communication and collaboration skills, with the ability to work effectively across cross-functional teams including product, design, and DevOps
A proactive, ownership-driven mindset with a passion for writing clean, well-documented, and testable code
Nice to Have:
Experience with serverless architectures (AWS Lambda, Cloud Functions)
Familiarity with GraphQL
Exposure to WebSocket or real-time communication protocols
Experience in gaming, virtual currency, digital commerce, or fintech domains
Contributions to open-source projects
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 medical, dental, and vision, PTO, 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.
Equal Employment Opportunity Statement:
Xsolla is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity, or any other characteristic protected by law.
We consider qualified applicants with criminal histories in accordance with the Fair Chance Act.
Criminal History Consideration:
For the Tech Lead, we will conduct a background check that may include the following.
Criminal history check.
Employment verification.
Education verification.
Relevance to job Responsibilities:
The background check is relevant to this position because of the following role responsibilities:
Accessing confidential company data
Ensuring compliance with regulatory requirements
Handling sensitive financial information/ managing budgets /accessing funds
Rights Under the Fair Chance Act:
Applicants are encouraged to inquire about their rights under the Fair Chance Act. If you have questions regarding our hiring practices, please contact careers@xsolla.com
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.
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.
УдалённоseniorГеография найма не уточнена
seniorLondon
ГибридManila, Philippines
ГибридIf you are not currently in Portugal, we are open to remote work during the trial period, with relocation to Lisbon afterward
seniorChicago
seniorΛευκωσία, Nicosia, Cyprus; Relocation support, including visa sponsorship and allowance
seniorΛευκωσία, Nicosia, Cyprus; Relocation support, including visa sponsorship and allowance