Principal Software Engineer

Key Responsibilities

• Lead technical decision-making and contribute to the architecture of a high-load, microservices-based gaming platform.

• Stay deeply hands-on and write production code every day. This is not an architecture-only or people-management role.

• Design, develop, and maintain scalable backend services that directly power our gaming products.

• Take ownership of complex backend systems, from technical design to delivery, monitoring, optimisation, and support.

• Continuously improve system performance, latency, reliability, and scalability in a high-throughput environment.

• Collaborate closely with Product Owners, engineers, and cross-functional teams to deliver features end-to-end.

• Drive and participate in code reviews, setting a high standard for clean, maintainable, efficient, and production-ready code.

• Conduct architectural reviews and guide the team toward practical, scalable, and long-term technical solutions.

• Solve complex business and technical problems with a strong engineering mindset and pragmatic decision-making.

• Act as a technical role model for the team by showing strong ownership, discipline, and engineering excellence.

• Mentor other engineers through daily collaboration, technical discussions, and hands-on example.

• Participate in on-call rotations within the squad to ensure system reliability, availability, and fast incident response.

• Grow toward technical leadership while remaining strongly connected to code, delivery, and system ownership.

Requirements

• Strong hands-on backend engineering experience with a proven record of writing production code on a daily basis.

• Solid experience with Node.js and TypeScript is highly preferred. Strong experts in other OOP languages such as Java, Python, C++, C#, or Go may also be considered.

• Strong understanding of asynchronous programming and event-driven architecture.

• Practical experience with distributed systems and messaging technologies such as Apache Kafka and gRPC.

• Experience working with relational databases such as MySQL or PostgreSQL.

• Experience with columnar databases such as ClickHouse and/or NoSQL technologies such as DynamoDB or MongoDB.

• Strong ability to design, build, test, deploy, and maintain production-ready backend services.

• Experience developing and maintaining unit tests, integration tests, and end-to-end tests.

• Proven ability to work with high-load, scalable, and business-critical systems.

• Strong debugging, problem-solving, and performance optimisation skills.

• Ability to make technical decisions independently and take responsibility for their impact.

• Strong code quality mindset, with a clear understanding of maintainability, reliability, and long-term system health.

• Readiness to grow into a technical leadership role while remaining hands-on.

• Degree in Computer Science, Software Engineering, or a related technical field.

Nice to Have

• Experience with large-scale microservices architecture.

• Good practical knowledge of Kubernetes.

• Experience with cloud providers, especially AWS.

• Understanding of application security and industry best practices.

• Understanding of enterprise development patterns.

• Experience with active performance monitoring, observability, and production system analysis.

• Experience in the gambling, gaming, or iGaming domain.

• Experience mentoring engineers or leading technical initiatives without moving away from coding.

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, and global meet-ups.

• B2B Contracts.

Recruitment Process

1. HR Interview - 30–45 minutes

2. Interview with a Product Owner - 60 minutes

3. Technical Interview with Live Coding - 90 minutes

4. Final Interview with C-level - 60 minutes