Location: Europe; Ukraine
We are toogeza, a Ukrainian recruiting company that is focused on hiring talents and building teams for tech startups worldwide.
Currently, we are looking for a Senior Software Engineer (Systems & Algorithms) for Spinlab.
Location: Remote
Job Type: Full-Time
About our client:
We help slot gaming leaders unlock the potential of their data, enhancing business outcomes and strengthening their competitive edge in the market. We collect and process data using advanced methods and technologies to provide our clients with clear, actionable recommendations based on real metrics. SpinLab's goal is not just to collect data but to transform it into meaningful business insights that improve efficiency and help products grow.
Product Overview:
A B2B web analytics and user-identification platform for browsers and webviews:
- Fingerprint: browser-based user identification for browsers and webviews. A JavaScript SDK collects device signals (Canvas, GPU, screen, timezone, language, network) and assigns each visitor its own identifier.
- Real-time analytics: high-RPS event collection and processing, with ClickHouse-based reporting for customers.
This role works mainly on Fingerprint and the event pipeline behind it.
Who we're looking for:
An experienced engineer who enjoys writing non-trivial code by hand, with a background in areas like systems programming, distributed systems, embedded systems, telecom and VoIP, desktop software, trading systems, video and audio processing, databases or developer tools.
Strong fundamentals matter more to us than knowing specific frameworks. The product runs on TypeScript / Node.js, and we welcome engineers with a background in other languages who are ready to switch.
Requirements:
- 10+ years of software engineering, and you still write code yourself every day.
- Solid experience with a compiled or systems language (such as C++, Rust, Go, Java, or C#), on projects beyond typical CRUD
- Projects where you designed and wrote low-level or algorithmically complex logic yourself: a network protocol, an engine, a codec, a storage layer
- Comfortable implementing data structures and algorithms by hand, without relying on libraries or AI assistants.
- Ready to work primarily in TypeScript / Node.js.
- Working English.
Nice to have:
- Production TypeScript / Node.js and NestJS, strict-mode TypeScript.
- Clustered ClickHouse, Kafka as a producer, Redis beyond GET/SET (pipelines, Lua, distributed locks).
- Distributed systems under load: idempotence, retries, caching.
- Browser internals: Canvas, WebGL, AudioContext, cross-origin iframes, storage partitioning. Shipping a third-party SDK under tight size and privacy constraints.
- Docker, Helm templates, GitHub Actions.
- Conventional Commits, a strong review and documentation culture.
Stack: TypeScript, Node.js, NestJS · ClickHouse, Kafka, Redis · Web Components SDK · AWS
(EKS), Helm, ArgoCD, GitHub Actions · Datadog.
Scope of ownership:
- Backend: high-RPS collection and identification endpoints, a Redis-backed key-value store, Kafka producers, ClickHouse migrations
- Browser SDK: evolving signals and fighting regressions on Safari and iOS.
- Operations: observability (APM, RED signals, SLO alerts), GitOps delivery via Helm and ArgoCD.
- A "whole feature" mindset — willingness to own delivery end-to-end, including the UI, rather than handing it off
Benefits:
- Work on meaningful data products and shape them with your vision.
- 25 vacation days + 15 sick days + 1 birthday leave.
- Budget for English classes.
- Budget for health insurance.
- Annual education & development budget.
- Remote-friendly culture with a small, dedicated team.
What’s next?
If this role sounds like a fit — we’d love to hear from you! Just send over your CV and anything else you’d like us to consider.
We’ll review everything within five working days, and if your background matches what we’re looking for, we’ll get in touch to set up a call and get to know each other better.
seniorEurope; Ukraine; A JavaScript SDK collects device signals (Canvas, GPU, screen, timezone, language, network) and assigns each visitor its own identifier
Location: Beograd, Serbia
Workplace: remote
Novakid is an online English platform for kids — 100,000+ students, 2,500+ teachers, 15+ countries. Live classes run around the clock across time zones, which sets the technical bar: low latency, high availability, and a backend that holds up at real scale.
We’ve built a working platform. The next chapter is making deliberate architectural choices about how it should evolve.
The role
We’re hiring a Principal Backend Engineer to take ownership of backend architecture as a hands-on technical leader. No direct reports. About half your time is in the code — reference implementations, critical components, refactors. The other half is the harder work: deciding what to build, what to buy, what to defer, and why.
Our backend today is a Python core (FastAPI, SQLAlchemy, Celery, Postgres, Redis), surrounded by services and event-driven flows, with a growing AI layer. It runs primarily on AWS, with GCP for data and AI workloads. There are real architectural questions to answer: how to evolve the monolith, how to set service boundaries, how to design for geo-distribution as we grow, and how to integrate AI without accumulating debt. We’re looking for someone who treats those questions seriously — researches before deciding, thinks in tradeoffs, writes things down.
What you’ll work on
Backend architecture standards and major technical decisions across teams
The path from monolith toward a more modular, service-oriented backend
Service blueprints: API conventions, EDA patterns, testing, observability, deployment
Cloud architecture across AWS (primary) and GCP, including multi-region and geo-distributed designs
High-load, real-time systems: live class infrastructure, latency budgets, caching, capacity
Buy vs. build vs. assemble — knowing when a managed service, a no-code tool (Retool, n8n), or an agentic-coding POC (Claude Code, Cursor) is the right call, and when it isn’t
Production code: components, refactors, POCs, and selected product-critical features
What we’re looking for
7+ years of backend engineering, deeply hands-on in Python
Production experience with FastAPI, SQLAlchemy, Celery, Postgres, Redis
Strong AWS architecture experience (EKS, Lambda, RDS, SQS/SNS/EventBridge, and so on); working knowledge of GCP a plus
Experience designing high-load, latency-sensitive, and geo-distributed systems
Pragmatic judgment on buy vs. build vs. assemble — managed services, no-code, and agentic tooling as first-class options, not shortcuts
A deliberate working style: you research, weigh tradeoffs, document decisions, and explain them clearly to engineers and non-engineers alike
Nice to have
LLM integrations in production (OpenAI, Anthropic, Google AI) — evaluation, cost, reliability
Active use of agentic coding tools (Claude Code, Cursor) as part of how you ship
EdTech or other high-scale consumer platforms
Stack
Python · FastAPI · SQLAlchemy · Celery · Postgres · Redis · Kubernetes (EKS, GKE) · AWS · GCP · SQS/SNS/EventBridge · Pub/Sub · OpenAI · Anthropic · Google AI
What we offer…
Fully remote work (core hours GMT+3).
A chance to shape the future of AI-driven education.
A fun, dynamic team that loves building innovative products.Unlimited holidays – because we trust you to deliver.
Bonuses and stock options – we grow together.
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.
УдалённоseniorГеография найма не уточнена
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.
О РОЛИ
Мы ищем инженера для развития бэкенд-составляющей финтех-продукта с собственной карточной инфраструктурой. Работа связана с проектированием надежных систем обработки транзакций, интеграцией платежных шлюзов и обеспечением консистентности данных в высоконагруженной среде.
ОСНОВНЫЕ ЗАДАЧИ
— Разработка и развитие сервисов на Python (Django).
— Проектирование архитектуры транзакционных и учетных систем.
— Интеграция с внешними API: карточные процессинги, банковские шлюзы, KYC/AML сервисы.
— Реализация механизмов обработки вебхуков (идемпотентность, очереди, ретраи).
— Работа с ончейн-интеграциями и внешними счетами.
— Оптимизация производительности и соблюдение инженерных стандартов (Code Review).
ТРЕБОВАНИЯ К КАНДИДАТУ
— 5+ лет коммерческого опыта разработки на Python и глубокое знание Django.
— Релевантный опыт в Fintech или разработке сложных транзакционных систем.
— Понимание жизненного цикла транзакций и принципов ACID / Eventual Consistency.
— Глубокая экспертиза в PostgreSQL: оптимизация запросов, индексы, блокировки.
— Опыт проектирования API и работы с очередями (Redis, RabbitMQ/Kafka).
— Умение проектировать архитектуру систем (Monolith / Microservices / Event-driven).
БУДЕТ ПРЕИМУЩЕСТВОМ
— Опыт работы с карточными продуктами (Issuing/Acquiring) и биллингом.
— Практическое знакомство с Web3 (кошельки, взаимодействие с нодами через API).
— Навыки построения Antifraud и Ledger-систем.
— Опыт работы с Docker, Kubernetes и Event Sourcing.
УСЛОВИЯ РАБОТЫ
— Полностью удаленный формат в международном проекте.
— Работа над технологически сложным и востребованным продуктом.
— Минимум бюрократии и высокая степень влияния на архитектурные решения.
— Профессиональная команда и прозрачные процессы разработки.
Location: New York
WHY HARVEY
At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come.
This is a rare chance to help build a generational company at a true inflection point. We have strong product-market fit and world-class investor support. We’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched.
Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence. We live by three values: Decisiveness, Simplicity, and Job's Not Finished. We act quickly on clear judgment over perfect information, we believe simplicity is what scales, and we're never satisfied with where we are. If you want to do the best work of your career alongside people who share that drive, we'd love to build with you.
At Harvey, the future of professional services is being written today — and we’re just getting started.
ROLE OVERVIEW
As a Staff Software Engineer on the Core Infrastructure team at Harvey, you'll play a critical role in designing and building new infrastructure systems while equally scaling and strengthening our existing infrastructure. Our infrastructure is the foundation that powers every user interaction with Harvey — processing billions of prompt tokens and millions of daily requests across our global legal AI platform.
You'll work in an environment balanced between innovation — building new systems — and operational excellence, ensuring that Harvey remains resilient and efficient as it scales products, regions, customers, and usage. Your contributions will directly impact the reliability, scalability, and security of our platform as we serve the world's leading law firms and professional service providers.
This role is based in New York City, New York. We use an in-person work model and offer relocation assistance to new employees.
WHAT YOU’LL DO
- Design and build scalable, fault-tolerant infrastructure systems that power Harvey's AI platform across multiple cloud regions
- Own and evolve our multi-cloud infrastructure (Azure, GCP), including Kubernetes orchestration, networking, and container management
- Lead technical initiatives around observability, incident response, and operational excellence — building systems that enable rapid detection and resolution of issues
- Architect and optimize our distributed systems for reliability, including load balancing, quota management, and failover mechanisms
- Partner with Product Engineering and Security teams to ensure our infrastructure is an accelerant, not a constraint
- Drive infrastructure-as-code practices using tools like Terraform and Pulumi to enable reproducible, auditable deployments
- Mentor engineers and raise the technical bar across the organization through code reviews, design reviews, and technical leadership
REPRESENTATIVE PROJECTS
- Design and implement a next-generation model proxy architecture that routes millions of daily inference requests while maintaining model API compatibility and enabling seamless model integration
- Build distributed rate limiting and quota management systems using Redis-backed algorithms to handle bursty traffic patterns without degrading user experience
- Architect multi-region deployment strategies that meet strict data residency requirements for global enterprise customers
- Develop comprehensive observability infrastructure with granular SLA monitoring, burn rate alerts, and detailed token attribution for cost tracking
- Lead the evolution of our CI/CD pipelines to improve developer velocity while maintaining production stability
WHAT YOU HAVE
- 10+ years of experience in Infrastructure Engineering or Platform Engineering in a production environment
- Long track record building and scaling complex, large-scale distributed systems
- Deep proficiency with cloud infrastructure platforms (Azure preferred; GCP or AWS experience transfers well)
- Strong fluency in Infrastructure as Code (IaC) tools — Terraform, Pulumi, or CloudFormation
- Solid understanding of Kubernetes, container orchestration, networking, and cloud security at scale
- Experience with observability tools (Datadog, Sentry) and incident response practices (PagerDuty, Incident.io http://Incident.io)
- Strong programming skills in Python, Go, or similar languages
- Excellent problem-solving skills, a "spidey sense" of where things could go wrong, and a commitment to operational excellence
NICE TO HAVE
- Experience building infrastructure for AI/ML workloads or high-throughput inference systems
- Background with distributed rate limiting, load balancing, or quota management systems
- Experience operating multi-tenant platforms with strict security and compliance requirements
- Track record of leading complex cross-functional projects and delivering measurable impact
COMPENSATION RANGE
$201,000 - $264,000 USD
DEPENDING ON YOUR LOCATION, AN APPLICANT PRIVACY NOTICE MAY APPLY TO YOU. YOU CAN FIND ALL OF OUR APPLICANT PRIVACY NOTICES HERE https://harveyai.notion.site/Harvey-Candidate-Privacy-Notices-319ac3fcdd7a803bb807d5094f249922?pvs=74.
#LI-AN2
Harvey is an equal opportunity employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law.
We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made by emailing accommodations@harvey.ai
Location: San Francisco
WHY HARVEY
At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come.
This is a rare chance to help build a generational company at a true inflection point. We have strong product-market fit and world-class investor support. We’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched.
Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence. We live by three values: Decisiveness, Simplicity, and Job's Not Finished. We act quickly on clear judgment over perfect information, we believe simplicity is what scales, and we're never satisfied with where we are. If you want to do the best work of your career alongside people who share that drive, we'd love to build with you.
At Harvey, the future of professional services is being written today — and we’re just getting started.
ROLE OVERVIEW
As a Staff Software Engineer on the Core Infrastructure team at Harvey, you'll play a critical role in designing and building new infrastructure systems while equally scaling and strengthening our existing infrastructure. Our infrastructure is the foundation that powers every user interaction with Harvey — processing billions of prompt tokens and millions of daily requests across our global legal AI platform.
You'll work in an environment balanced between innovation — building new systems — and operational excellence, ensuring that Harvey remains resilient and efficient as it scales products, regions, customers, and usage. Your contributions will directly impact the reliability, scalability, and security of our platform as we serve the world's leading law firms and professional service providers.
This role is based in San Francisco, CA. We use an in-person work model and offer relocation assistance to new employees.
WHAT YOU’LL DO
- Design and build scalable, fault-tolerant infrastructure systems that power Harvey's AI platform across multiple cloud regions
- Own and evolve our multi-cloud infrastructure (Azure, GCP), including Kubernetes orchestration, networking, and container management
- Lead technical initiatives around observability, incident response, and operational excellence — building systems that enable rapid detection and resolution of issues
- Architect and optimize our distributed systems for reliability, including load balancing, quota management, and failover mechanisms
- Partner with Product Engineering and Security teams to ensure our infrastructure is an accelerant, not a constraint
- Drive infrastructure-as-code practices using tools like Terraform and Pulumi to enable reproducible, auditable deployments
- Mentor engineers and raise the technical bar across the organization through code reviews, design reviews, and technical leadership
REPRESENTATIVE PROJECTS
- Design and implement a next-generation model proxy architecture that routes millions of daily inference requests while maintaining model API compatibility and enabling seamless model integration
- Build distributed rate limiting and quota management systems using Redis-backed algorithms to handle bursty traffic patterns without degrading user experience
- Architect multi-region deployment strategies that meet strict data residency requirements for global enterprise customers
- Develop comprehensive observability infrastructure with granular SLA monitoring, burn rate alerts, and detailed token attribution for cost tracking
- Lead the evolution of our CI/CD pipelines to improve developer velocity while maintaining production stability
WHAT YOU HAVE
- 10+ years of experience in Infrastructure Engineering or Platform Engineering in a production environment
- Long track record building and scaling complex, large-scale distributed systems
- Deep proficiency with cloud infrastructure platforms (Azure preferred; GCP or AWS experience transfers well)
- Strong fluency in Infrastructure as Code (IaC) tools — Terraform, Pulumi, or CloudFormation
- Solid understanding of Kubernetes, container orchestration, networking, and cloud security at scale
- Experience with observability tools (Datadog, Sentry) and incident response practices (PagerDuty, Incident.io http://Incident.io)
- Strong programming skills in Python, Go, or similar languages
- Excellent problem-solving skills, a "spidey sense" of where things could go wrong, and a commitment to operational excellence
NICE TO HAVE
- Experience building infrastructure for AI/ML workloads or high-throughput inference systems
- Background with distributed rate limiting, load balancing, or quota management systems
- Experience operating multi-tenant platforms with strict security and compliance requirements
- Track record of leading complex cross-functional projects and delivering measurable impact
COMPENSATION RANGE
$236,000 - $290,000 USD
DEPENDING ON YOUR LOCATION, AN APPLICANT PRIVACY NOTICE MAY APPLY TO YOU. YOU CAN FIND ALL OF OUR APPLICANT PRIVACY NOTICES HERE. https://harveyai.notion.site/Harvey-Candidate-Privacy-Notices-319ac3fcdd7a803bb807d5094f249922?pvs=74
#LI-AN2
Harvey is an equal opportunity employer and does not discriminate on the basis of race, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition, or any other basis protected by law.
We are committed to providing reasonable accommodations to applicants with disabilities, and requests can be made by emailing accommodations@harvey.ai
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
Location: Montreal; Canada
Workplace: remote
ABOUT YOU
We are looking for a Full-Stack Engineer who is curious, detail-oriented, and collaborative to join our Engineering team. The best candidate will be someone who enjoys working in a fast-paced, team-oriented environment and is eager to contribute to end-to-end solutions, learn scalable architecture patterns, and help improve performance and reliability across both frontend and backend systems.
Proficiency in React and modern frontend development practices, along with backend experience in Go (or a similar language) is essential, along with exposure to microservices architecture and containerized environments using Docker and Kubernetes. The ability to contribute to features from concept to production, assist in troubleshooting system issues, and participate in performance optimization efforts will be key to your success in this role.
If you're passionate about building full-stack experiences that power impactful products and are excited to grow your skills within gaming, payment, and digital commerce ecosystems, 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.
Responsibilities
Contribute to the development and maintenance of full-stack applications that power core products and platforms.
Build responsive, performant user interfaces using React.
Develop and maintain backend services using Go and event-driven architectures.
Work with microservices in containerized environments using Docker and Kubernetes.
Participate in architecture discussions and contribute ideas that improve performance and maintainability.
Collaborate with engineers, product managers, designers, and QA to deliver features end-to-end.
Monitor and debug your code in production, contributing to application reliability and performance improvements.
Write automated tests and follow CI/CD best practices to ensure quality deployments.
Participate in code reviews, technical discussions, and knowledge sharing across teams.
Join on-call rotation to support production systems and assist in incident response.
Qualifications & Skills
2–4 years of full-stack development experience.
Proficiency in React and modern frontend development practices.
Backend experience in Go or a similar language.
Understanding of microservices architecture and event-based communication patterns.
Exposure to container orchestration and cloud infrastructure (e.g., Kubernetes, Docker).
Basic understanding of observability, monitoring, and performance optimization.
Ability to assist in troubleshooting production issues and analyzing system behavior.
Nice to Have
Experience with React Native for mobile development.
Interest or background in gaming, payments, or commerce systems.
Exposure to adtech or offer monetization platforms.
Familiarity with Kafka or equivalent streaming platforms.
Familiarity with Redis or other in-memory data stores.
Experience with cloud platforms (e.g., AWS, GCP, or Azure).
Exposure to ClickHouse, Postgres, or other analytical/OLAP/OLTP databases.
Any experience working on internal platforms or developer-facing tools.
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 Lead Software Engineer (Mobile Native), 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
Location: Limassol, Cyprus
Workplace: on-site
Our team is developing a payment gateway for accepting funds from users on behalf of merchants, as well as sending funds from merchants to users. The system involves storing user payment data and is subject to PCI DSS compliance. It contains multiple integrations with payment systems, providers, and other gateways and processors, including 3DS.
Job Responsibilities
Developing new payment features and services;
Designing and implementing APIs (external and internal);
Creating and maintaining processes in Camunda;
Participating in the design and development of high-load system architectures;
Supporting and enhancing existing solutions and services;
Writing high-quality, test-covered code (unit tests, integration tests);
Conducting code reviews, including frontend code;
Optimizing system performance and database queries;
Analyzing and resolving production incidents and bugs;
Processing and resolving requests from technical support and users as part of daily duties;
Analyzing documentation from external providers, conducting quick checks, and defining epics and tasks based on Proof of Concept;
Collaborating with the QA team to ensure the high quality of the delivered product;
Maintaining technical documentation and writing technical specifications;
Assisting in onboarding new developers and ensuring code quality;
Definition and formation of technical epics — analyzing existing solutions, identifying opportunities to improve system architecture, performance, and reliability, preparing improvement proposals, and aligning them with the team lead and architect;
Participation in the creation of business epics — analyzing requirements, assessing feasibility, and proposing alternative or optimized solutions based on technical expertise; collaborating with analysts and product managers to determine the best implementation approach;
Preparing tasks based on approved epics, ensuring proper detailing and alignment with architectural and business requirements;
Estimating task completion timelines, participating in sprint planning, and providing accurate technical time and effort estimates.
Important and Challenging Tasks:
Creating and developing reliable payment solutions with high security and performance levels;
Optimizing the performance and scalability of payment systems;
Integrating complex external providers;
Participating in ensuring system compliance with high-security requirements (PCI DSS and others).
Technology Stack and Tools:
Kotlin / Java;
MySQL;
Redis;
Apache Kafka;
Camunda 8;
Redshift;
Keycloak;
AWS;
Spring Framework;
GitLab CI/CD;
Jira;
Sentry;
Kibana;
Grafana;
AI-assisted coding tools (Copilot, ChatGPT, Codeium, etc.).
You’ll thrive here if you have
3+ years of commercial development experience with Kotlin;
Experience with the Spring Framework;
Experience in developing payment solutions (billing, payment gateways, payment processors, exchanges);
Practical experience integrating with external providers;
Experience designing and optimizing relational databases (MySQL);
Experience with NoSQL databases (Redis);
Practical experience using AI-assisted coding tools (Copilot, ChatGPT, Codeium, etc.) to improve speed and quality of development;
Ability to critically review AI-generated code, ensuring production-ready quality and compliance with company standards;
Knowledge of Event-Driven Architecture principles and experience working with distributed messaging systems (e.g., Apache Kafka);
Excellent command of core software development and design principles, test-driven development (TDD), and CI/CD processes;
Experience implementing simple and moderately complex interfaces using ReactJS and/or Svelte;
Strong understanding of microservice architecture;
English proficiency level B1 or higher.
Preferred Qualifications:
Experience with Camunda (creating and supporting processes);
Solid understanding of PCI DSS standards, ISO 27001, and other information security methodologies;
Practical experience working with AWS;
Experience with Jira and GitLab CI/CD.
Conditions
We know that great talent deserves great conditions, so here's what you can expect when joining us:
EU-based employment contract and a 3-year Cyprus work visa with full support for your relocation and visa processes, including assistance for your family.
EU passport.
Opportunity to obtain an EU passport after 4 years of residence
Full relocation package: flights to Limassol for you and your family, a company-covered apartment for the first month, and full relocation support to make your move smooth and hassle-free.
Provident fund (Cypus): a long-term savings plan co-funded by you and the Company together (available after probation) that grows throughout your time with us in Cyprus.
Transparent performance reviews twice a year, with bonus opportunities and salary adjustments.
Private medical insurance for you and your family
Corporate mobile plan (unlimited in Cyprus with roaming included)
Mindfulness & well-being support, including psychological assistance with 50% coverage.
50% coverage of school and kindergarten fees for your children.
Fully covered sports benefits, and also access to in-house electric scooters and bike rentals
Professional growth support: language courses, conferences, training programs, and coaching.
Peer recognition program: receive and share kudos for great work.
A fully equipped office in Limassol’s city center, with everything you need for deep work and collaboration.
Free breakfasts and lunches in the office and an in-house coffee bar with high-quality drinks and a health bar stocked with nutritious snacks.
A strong engineering culture: international teams, corporate events, team buildings, and hackathons — because great work happens in great communities.
Benefits are provided in accordance with the company’s policies and eligibility criteria.
Recruitment process
HR interview (40 min);
Interview with hiring managers (1,5 hour);
Test task;
Final interview (1 hour) optional;
Recommendations check;
Offer.
Location: Ukraine; Spain; Poland; Portugal; Romania
About Us
At SPD Technology, we bring together a team of like-minded people who are driven by the desire to bring value through their work, united in their commitment to high performance and delivering custom, cutting-edge tech solutions that drive clients’ growth. We empower our people with a culture of excellence and enable them with the opportunity to uphold their accountability to contribute on each level. We value humanity and collaboration, encourage professional and personal growth, and foster a supportive and flexible work environment where everyone’s contribution is welcomed.
Now we are looking for a
Senior ML Operations Engineer
to join us as part of our team.
About the role
As a Senior ML Operations Engineer, you will support teams building and deploying AI-driven solutions, helping them overcome common challenges in the ML development, deployment, and support lifecycle. This role offers autonomy in decision-making, encouraging a proactive approach to solving complex issues and finding optimal solutions for scalable systems.
About the project
PitchBook — a platform for investment professionals. Our software provides access to data and the analytical tools to get answers fast and discover promising opportunities. Uncovers actionable insights and trends hidden within the financial data of more than three million companies. Users all over the world include large corporations, start-ups, venture capital and private equity firms, investment banks, and many others. Features of PitchBook: Advanced search / Discovery & insights / Company profiles / Workflow & efficiency / Financials and many more.
Team composition
1 Engineering Manager, 4 Senior ML Ops Engineers
Work Environment
The role offers a flexible work schedule, allowing you to adapt your working hours with the requirement to attend all team meetings. The team follows a Scrum-based Agile methodology.
As a qualified expert, You will
Serve as a force multiplier for development teams by creating golden paths that remove roadblocks and improve ideation and innovation.
Collaborate with other engineers, product managers, and internal stakeholders in an Agile environment.
Provide mentorship, technical guidance, and perform code reviews for team members.
Design and deliver on projects end-to-end with little to no guidance.
Provide support to teams building and deploying AI applications by addressing common pain points in the MLDLC.
Learn constantly and be passionate about discovering new tools, technologies, libraries, and frameworks (commercial and open source), that can be leveraged to improve PitchBook’s AI capabilities.
Support the vision and values of the company through role modeling and encouraging desired behaviors.
Participate in various cross-functional company initiatives and projects as requested.
Contribute to strategic planning in a way that ensures the team is building exceptional products that bring real business value.
Evaluate frameworks, vendors, and tools that can be used to optimize processes and costs with minimal guidance.
We’re looking for you if you have
Degree in Computer Science, Information Systems, Machine Learning, or a similar field preferred (or equivalent practical experience).
5+ years of hands-on software development experience with Python (Java experience with strong Python proficiency also considered).
4+ years of experience designing and building distributed software systems and architectures.
3+ years of hands-on experience deploying and operating Machine Learning services in production.
Experience supporting ML lifecycle operations including post-deployment monitoring and maintenance.
Experience in cloud-native stack, with a practical understanding of containerization technologies such as Kubernetes and Docker.
Demonstrated experience with SQL and NoSQL database design and implementation.
Ability to decompose complex problems into iterative, well-defined solutions.
Strong problem-solving abilities with focus on building scalable, efficient, and maintainable systems.
Strong communication and collaboration skills, with the ability to engage effectively with internal customers across various cultures and regions.
Ability to be a team player who can also work independently.
Experience working across multiple development teams is a plus.
Bonus points
Experience with cloud platforms (AWS, Google Cloud Platform, or Azure).
Proficiency in GitOps practices and CI/CD pipeline development and management.
Observability and monitoring: Integration experience with observability tools (Prometheus, Grafana) and building instrumented, production-ready systems.
LLM Infrastructure: Experience provisioning and managing Large Language Models through managed services (Azure OpenAI, Google Vertex AI, Amazon Bedrock).
LLM Tooling: Hands-on experience with LLM gateways (LiteLLM) and agentic frameworks (LangGraph, LangSmith, or similar).
Vector Systems: Practical experience with vector embedding models and vector databases (Pinecone, Weaviate, Milvus, pgvector).
RAG Systems: Experience building Retrieval-Augmented Generation systems and evaluating both retrieval quality and generation performance.
Cloud-native experience with services like Amazon SageMaker, Google Vertex AI, or Azure ML
Familiarity with ML frameworks and tools: PyTorch, TensorFlow, scikit-learn
Experience with data infrastructure: Redis, Elasticsearch, Apache Kafka.
ML experiment tracking and model management: Weights & Biases, MLflow, KubeFlow.
API development with FastAPI or similar frameworks.
Java programming experience is a plus.
What’s in it for You
Reveal great tech solutions
Join the team of experts who create custom, cutting-edge tech solutions for world-renowned businesses, fueling clients growth. Unleash your potential, tackle new challenges, and be part of a team that values your skills and contributions. Focus on long-term impact and building tailored, long-lasting partnerships with our clients.
Experience an agile and flexible working environment
Work fully remote around the globe, or in a hybrid work model from our office hubs which are equipped with everything needed for comfortable work. Enjoy a flexible working schedule and create work and rest balance for yourself. Empower yourself with a stable workload and a stable income, focusing on lasting cooperation and high-performance culture.
Embrace the opportunity for personal and professional growth
Take advantage of performance review and career path. Elevate your skills with mentorship program, personal development plan, and individual learnings through the corporate library, public speaking support, and more.
Feel cared about
Be among like-minded people and feel supported with collaboration, open communication and mutual respect. Join company-wide tech and cultural events, and contribute to meaningful CSR initiatives that resonate with your values.
Interview steps
Interview with the recruiter
Live Coding (up to 30 min)
Tech Interview: ML Fundamentals, Software Engineering (up to 60 min)
ML System Design Interview (up to 45 min)
Interview with Engineering Manager (60 min)
Location: Warsaw, Poland; Madrid, Spain; Tbilisi, Georgia; Yerevan, Armenia; Bratislava, Slovakia; Podgorica, Montenegro
CloudLinux is transforming the Linux infrastructure market by ensuring security and stability for over 500,000 servers worldwide. Our products - CloudLinux OS and Imunify360 - are the de facto standard in the hosting industry and Enterprise segment.
We are seeking a visionary engineer to lead the evolution of our data platform. In 2025, we are shifting from classic database administration to an Internal Database-as-a-Service (DBaaS) model. We need a specialist who doesn’t just "configure backups," but designs resilient distributed systems, writes code to automate infrastructure, and transforms databases into a reliable service for product teams.
If you are tired of endless tickets and want to build platforms capable of processing petabytes of data, this role is for you.
Your Challenges & Responsibilities:
DBaaS Architecture:
Design and implement a self-service platform based on
Terraform
and
Ansible
, enabling the deployment of HA clusters (PostgreSQL and ClickHouse, MongoDB, Redis) in a heterogeneous environment (Bare Metal + OpenNebula + Kubernetes + Public Clouds). You will turn infrastructure into a product.
Scaling ClickHouse:
Manage exponentially growing analytics clusters (12+ clusters, tens of terabytes of data). You will tackle sharding, table engine optimization (ReplicatedMergeTree), and building reliable S3 backup pipelines under high load.
Data Platform & Analytics Support:
Maintain and scale the infrastructure for Apache Airflow and Redash. You will ensure the reliability of ETL pipelines and visualization tools, bridging the gap between raw infrastructure and the data analytics team.
Reliability as Code:
Implement SRE practices in data management. Replace manual incident response with automated self-healing mechanisms. Define and implement SLO/SLI for all databases.
Stack Modernization:
Lead the migration process from legacy solutions to modern cloud patterns. Participate in decision-making regarding the implementation of Kubernetes operators for stateful workloads.
Expertise & Mentorship:
Serve as the technical authority for product teams, helping them optimize data schemas and SQL queries for high-load systems.
Our Tech Stack:
Databases
: PostgreSQL 15+ (Patroni, PgBouncer), ClickHouse (Sharded/Replicated), MongoDB, Redis, Kafka
Data & Analytics:
Apache Airflow, Redash (Infrastructure & Integration).
Infrastructure:
Own 3+DC colocation (OpenNebula, Kubernetes, Bare Metal), AWS, Google Cloud, Azure, DO – Hybrid Cloud.
Automation & IaC:
Terraform, Ansible, Python/Go, GitLab, Jenkins, Gerrit.
Observability
: VictoriaMetrics, Grafana, Loki.
Why CloudLinux?
Culture:
A Remote-first company with an "Employees First" principle. We value results, not hours in the office.
Impact:
Your architectural decisions will determine the stability of services used by thousands of companies around the world.
Growth:
We support professional development and pay for training and conferences.
Requirements
What We Expect From You:
AI-Augmented Engineering:
You don't view AI as a replacement for deep technical fundamentals, but as a high-leverage tool. We actively use AI agents (Claude, Codex, Gemini, etc.) to automate boilerplate, analyze complex logs, and speed up research. We expect you to be open to modern workflows and integrate AI into your day-to-day operations, allowing you to focus your brainpower on the true architectural challenges.
Deep PostgreSQL Expertise (5+ years):
You know MVCC internals, understand locking mechanics, can configure Patroni and PgBouncer "with your eyes closed," and have experience with seamless major version upgrades under load.
ClickHouse Mastery:
Experience operating large clusters, understanding ZooKeeper/ClickHouse Keeper, sharding, replication internals, and the ability to diagnose performance issues at the data-part level.
Engineering Mindset (SRE/DevOps):
You hate doing the same task twice by hand. Experience writing complex Terraform modules and Ansible roles is mandatory. Programming skills in
Python
or
Go
for automation are a huge plus.
Hybrid Environment Experience:
You understand the differences between running DBs on Bare Metal vs. Kubernetes vs. Cloud and know how to optimize TCO and disk subsystem performance (NVMe, Network Storage).
Systems Approach:
You see the big picture - from the network packet to the application business logic. You understand the importance of security (FIPS, Audit logs) and Disaster Recovery.
English:
upper-intermediate or higher - to ensure clear communication of progress within the teams
Nice to Have:
Experience building an Internal Developer Platform (IDP).
Experience operating databases in Kubernetes (CloudNativePG, Altinity Operator).
Experience working in Cloud and Hosting providers on similar services.
Benefits
What's in it for you?
A focus on professional development.
Interesting and challenging projects.
Fully remote work with flexible working hours, which allows you to schedule your day and work from any location worldwide.
Paid 24 days of vacation per year, 10 days of national holidays, and unlimited sick leaves.
Compensation for private medical insurance.
Co-working and gym/sports reimbursement.
Budget for education.
The opportunity to receive a reward for the most innovative idea that the company can patent.
By applying for this position, you consent to the processing of your personal data as described in our Privacy Policy (
https://cloudlinux.com/candidate-privacy-notice
), which provides detailed information on how we maintain and handle your data.
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
Задачи:
— Активное участие в развитии платформы
— Проектирование инфраструктуры и внедрение продуктивных сервисов
— Выявление и устранение проблем, связанных с инфраструктурой
— Взаимодействие с командой разработки для улучшения процессов деплоя и тюнинга сервисов
— Обеспечение непрерывной работоспособности продуктивных сервисов
Требования:
— Общий релевантный опыт — от 4 лет
— Практические навыки администрирования Linux (в т. ч. BareMetal), систем виртуализации и оркестрации
— Уверенная работа с CI/CD‑инструментами
— Опыт работы с системами мониторинга и логирования (VM, Grafana Loki)
— Развитый навык оперативного решения возникающих проблем
— Навыки работы в команде
— Уверенное понимание сетей и распределённых систем
— Обучаемость
— Практический опыт и стремление к автоматизации
— Знание Golang
Будет плюсом:
— Опыт работы с Kafka, Redis, PostgreSQL, Java, Rust
— Опыт работы с high load
Условия:
— Оформление по ТК РФ
— График работы: 5/2
— Место работы: Иннополис (предоставляем жильё)
— Своевременная выплата заработной платы
— 2‑разовое питание
— Полный соцпакет: ДМС, абонемент в спорткомплекс/тренажёрный зал
О ПРОЕКТЕ
Мы строим масштабную браузерную космическую игру на стыке Web3 и GameFi. Нам нужен инженер, который не просто пишет код, а «живет» играми и понимает, как устроена серверная магия виртуальных миров.
ВАШИ КЛЮЧЕВЫЕ ЗАДАЧИ
— Game Logic: Разработка и поддержка серверной логики космической игры.
— Data Architecture: Проектирование и оптимизация работы с БД под игровые нагрузки.
— Web3 Integration: (Будет плюсом) Взаимодействие со смарт-контрактами и кошельками.
ЧТО МЫ ЖДЕМ ОТ ВАС
— TS Power: Уверенное владение TypeScript (обязательно).
— Database Skills: Глубокое понимание PostgreSQL и Redis.
— Gamer Soul: Вы должны разбираться в играх и понимать специфику GameFi-архитектуры.
— Experience: Навыки построения надежного бэкенда для игровых систем.
БУДЕТ ПЛЮСОМ
— Опыт в геймдеве (серверная часть, логика игровых механик).
— Практический опыт с Web3 (блокчейн-интеграции, работа с кошельками).
ПОЧЕМУ С НАМИ КРУТО?
— Creative Freedom: Работа над уникальным GameFi-проектом в космическом сеттинге.
— Flexibility: Полная удаленка и гибкое планирование своего времени.
— Modern Stack: Минимум легаси, максимум современных решений.
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.
УдалённоseniorГеография найма не уточнена
УдалённоBeograd, Serbia; Live classes run around the clock across time zones, which sets the technical bar: low latency, high availability, and a backend that holds up at real scale; Fully remote work (core hours GMT+3)
New York; We use an in-person work model and offer relocation assistance to new employees
San Francisco; We use an in-person work model and offer relocation assistance to new employees
seniorΛευκωσία, Nicosia, Cyprus; Relocation support, including visa sponsorship and allowance
seniorΛευκωσία, Nicosia, Cyprus; Relocation support, including visa sponsorship and allowance
УдалённоMontreal; Canada
ОфисLimassol, Cyprus; EU-based employment contract and a 3-year Cyprus work visa with full support for your relocation and visa processes, including assistance for your family; Full relocation package: flights to Limassol for you and your family, a company-covered apartment for the first month, and full relocation support to make your move smooth and hassle-free
УдалённоseniorUkraine; Spain; Poland; Portugal; Romania
УдалённоseniorWarsaw, Poland; Madrid, Spain; Tbilisi, Georgia; Yerevan, Armenia; Bratislava, Slovakia; Podgorica, Montenegro