Senior Software Engineer (Game Engine)

About the Role

We are seeking a Senior Software Engineer to join a newly formed team responsible for a specialized and business-critical domain: the Game Engine. This role operates at the intersection of engineering, game mathematics, platform, and compliance. You will work on the tools, frameworks, and services that enable mathematicians and game teams to build, validate, run, and monitor game logic in production.

Key Responsibilities

• Own, maintain, and evolve Playson’s Game Engine domain.
• Develop internal frameworks and libraries for implementing game logic and mathematical packages.
• Review and validate code written by mathematicians, ensuring quality and correctness.
• Contribute to the development and support of game engines for running mathematical logic.
• Support integrations with external game studios by building wrappers and bridges.
• Work with data structures and protocols connecting game logic with frontend and backend systems.
• Contribute to RTP monitoring processes, validating production transaction data against simulation data.
• Support and evolve tools for mathematical review, simulations, data files, monitoring, and alerting.
• Implement and maintain round details logic for regulated markets.
• Collaborate closely with mathematicians, backend engineers, platform teams, compliance stakeholders, and product representatives.
• Participate in code reviews and technical discussions.
• Investigate issues related to game logic, mathematical validation, monitoring, and engine behavior.
• Participate in minimal on-call responsibilities.
• Take ownership of a highly specialized area where quality, accuracy, and attention to detail are essential.

Requirements

• Strong software engineering experience, ideally in backend, game engine, gaming, gambling, betting, or simulation-heavy environments.
• Solid experience with Node.js/TypeScript, or strong expertise in another OOP language (C++, Java, C#, Go, or Python).
• Good understanding of software architecture, code quality, testing, debugging, and maintainability.
• Experience reviewing complex code and providing clear technical feedback.
• Ability to understand domain-specific logic and work with technical systems where business rules, mathematics, and engineering are closely connected.
• Strong problem-solving skills for complex, non-standard technical challenges.
• Experience working with production systems where reliability, accuracy, and correctness are critical.
• Understanding of backend systems, APIs, data flows, and service-to-service communication.
• Ability to collaborate closely with non-engineering technical experts.
• Strong ownership mindset and willingness to become a key expert in a specialized domain.
• Product-oriented thinking, understanding that games are the core product.
• English communication skills sufficient for an international environment.

Nice to Have

• Experience in iGaming, gambling, betting, game development, or casino games.
• Experience with game engines, mathematical engines, simulation tools, or game logic frameworks.
• Background in C++ or experience with legacy C++ systems.
• Experience with mathematical models, probability-based systems, simulations, random generators, or RTP-related logic.
• Understanding of regulated markets and compliance requirements in iGaming.
• Experience with ClickHouse or other analytical/columnar databases.
• Experience with monitoring, alerting, and production diagnostics.
• Experience with AI-assisted code review or automated validation tools.
• Knowledge of microservices architecture and distributed systems.
• Familiarity with Kafka, gRPC, Kubernetes, or AWS.
• Experience integrating third-party games, external studio products, or wrapper-based solutions.
• Ukrainian language skills.

What We Offer

• Competitive Salary (EUR)
• Quarterly Bonuses
• Flexible Schedule
• Remote Work Option
• Medical Insurance (for you and a significant other)
• Financial Support for Life Events
• Unlimited Paid Vacation
• Unlimited Paid Sick Leave
• Professional Development Reimbursement

Recruitment Process

• HR interview
• Technical interview (with Live coding)
• Final interview