Senior Backend Engineer (Platform Tribe)
External
Playson · European UnionPrepare for this interview
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About the role
Playson is a globally recognised iGaming supplier delivering a high-performance, microservices-based platform designed to process billions of financial transactions every day. Built across multiple regions, our infrastructure is focused on one clear ambition - driving latency as close to zero as possible. We're looking for a Senior Backend Developer who thrives in a deeply hands-on environment and enjoys being close to the code on a daily basis. This role is heavily focused on building, optimising, and scaling backend services in a high-load system where performance and reliability are critical. You'll be working on complex, real-time challenges at the core of our platform - improving latency, ensuring high availability, and making systems more efficient at scale. This is not a coordination-heavy role; it's for someone who enjoys writing production code, solving tough engineering problems, and seeing the direct impact of their work. If you're product-driven, take ownership, and prefer a "build first, improve fast" approach while working on systems where every millisecond matters - this role will feel like home.
Responsibilities
- Work as part of a cross-functional team owning a core product within the platform
- Design, build, and deliver new backend features end-to-end in a distributed environment
- Write high-quality, production-level code daily, contributing directly to a high-load, scalable system
- Take ownership of services handling financial transactions at scale, with a strong focus on reliability and accuracy
- Proactively suggest and implement improvements in architecture, processes, and development practices
- Participate in code and architectural reviews to maintain high engineering standards
- Solve complex business and technical challenges with pragmatic, efficient solutions
- Participating in on-call rotations within the squad to ensure the reliability and availability of our systems
- Play an active role in ongoing tech transformation initiatives across the platform
- Collaborate closely with engineers, product, and other stakeholders to deliver impactful solutions used by millions globally
Requirements
- Solid experience with Node.js/TypeScript is ideal, but we also welcome experts in other OOP languages such as Java, Python, C++, C#, or Go.
- Strong understanding of asynchronous programming techniques
- Experience with distributed systems and messaging systems (Apache Kafka, gRPC)
- Knowledge of relational databases (MySQL, PostgreSQL), columnar databases (ClickHouse), and NoSQL technologies (DynamoDB, MongoDB)
- Skilled in developing and maintaining end-to-end and unit tests
- Proven track record of developing production-ready solutions
- Degree in Computer Science or related field
- Experience with large-scale microservices architecture.
- Good ground knowledge of Kubernetes
- Familiarity with cloud providers (especially AWS)
- Understanding of application security and industry best practices
- Understanding of enterprise development patterns
- Active performance observation
- Gambling domain experience
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