About Betby As a fast-growing, award-winning company, Betby powers the industry with our premium sportsbook, featuring world-class risk management and seamless omni-channel support, reaching millions of players across countless markets.

With offices in Latvia, Malta, Spain, Greece and Montenegro, we offer a vibrant work culture, relocation opportunities, and full support for remote talent across the globe. Join Betby and unlock endless opportunities for growth, success, and making a real impact in the world of iGaming!

Short Description We are building a complex, high-load system based on a microservice architecture, where every component plays a critical role. This is not a legacy support project - it's about continuous development of new modules, performance optimization, and high-throughput processing.

You will join the Risk-Management Product Group, which builds and develops the product - risk management tools and the back office pages used by internal risk managers and external operator clients to manage sportsbook risk.

Our team is small, but always growing and focused (6-8 engineers), operating with high autonomy, deep ownership, and a shared passion for scalable engineering.

TECH STACK

Python 3.13+ (asyncio, Pydantic v2)

Kafka

RabbitMQ

MongoDB

Docker

Kubernetes

Prometheus

Grafana

ELK

Responsibilities

Develop and maintain high-load backend services using Python (asyncio)

Design, support, and optimize microservice architecture components

Participate in architectural discussions and technical decision-making

Implement integrations with Kafka, RabbitMQ, and internal RPC services

Refactor and improve existing services with focus on scalability, reliability, and performance

Write functional and integration tests to ensure system stability

Collaborate with developers, QA, analysts, and product teams, while contributing to code reviews and knowledge sharing

REQUIREMENTS

Python 3.11,



5+ years of professional experience

Strong hands‑on experience with asyncio and asynchronous programming (3+ years preferred)

Experience in microservice architecture (REST API, RPC)

Strong knowledge of algorithms and data structures

Good understanding and practical application of SOLID, DRY, KISS, YAGNI principles

Experience designing internal libraries / SDKs / shared components

Pydantic (v2)

Hands‑on experience with stream processing

Solid understanding of RPC (designing RPC servers, request/response, retries, correlationId)

Kafka (consumer groups, delivery guarantees, schema design, experience in defining optimal partitioning strategies)

RabbitMQ (RPC, pub/sub, DLX, retries)

MongoDB (indexes, configs, transactions)

NICE TO HAVE

Experience in fintech, betting, trading domains

Experience with Prometheus, Grafana, ELK, Docker, Kubernetes,GraphQL (Ariadne), ClickHouse

CI/CD setup experience

WHAT WE OFFER

Comprehensive health insurance with coverage for your well-being

Paid sick leave up to 10 days without medical certificate

20 days of paid vacation plus additional leave for important life events

Learning and growth opportunities with support for professional developmentLanguage learning support for multilingual collaboration

Modern hardware provided for your work

International team environment across multiple countries

Corporate events and team activities

Welfare support program for critical situations

Gifts and support for major life milestones

WHY JOIN OUR DREAM TEAM? Betbyterians is a passionate team dedicated to creating exceptional B2B betting products. United by trust, support, and fun, we aim to revolutionize online gaming, tackling challenges with agility, creativity, and teamwork. Driven by innovation and strong business practices, our achievements speak for themselves. Experience it first‑hand, join us and be part of something extraordinary. Welcome to Betby!

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📌 Python Developer (Barcelona)
🏢 Betby
📍 Barcelona