Senior Backend Engineer (Platform Tribe)

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.

Key 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

Nice to Have

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

What We Offer

Competitive Salary: We offer a competitive salary, subject to annual performance reviews
Quarterly Bonuses: Benefit from a transparent and systematic quarterly bonus system
Unlimited Paid Vacation: Enjoy unlimited paid vacation leave, including Ukrainian bank holidays
Unlimited Paid Sick Leave: Take unlimited paid sick leave whenever necessary
Flexible Schedule: We offer a flexible work schedule to accommodate your needs
Remote Work: Choose to work remotely, providing greater flexibility and comfort
Medical Insurance: Receive comprehensive medical insurance for both you and a significant other
Financial Support for Life Events: We provide financial support during special life events
Professional Development: Get reimbursement for professional development courses and training
International exposure: Attend industry expos, team gatherings & global meet-ups
B2B contracts