Moon Active is one of the world's top mobile game companies, our teams leverage cutting-edge technologies to craft fun and interactive games enjoyed by millions worldwide. We produce exciting and engaging entertainment for players across the globe and pride ourselves on developing top-quality casual games that invite and allow players to connect with one another.We're looking for a motivated, team-oriented engineer who loves solving hard problems, writing clean, future-proof code, and using modern tools to create amazing games.You’ll be working on one of the mobile gaming industry’s most complex and successful products - a large-scale, highly-optimized Unity codebase that serves millions of concurrent users globally. This isn’t your typical mobile game, it’s a sophisticated, ever-evolving system that demands exceptional architectural thinking, performance optimization expertise, and the ability to maintain quality at scale.Responsibilities: Design and implement complex features within a large-scale Unity architecture, making decisions that impact millions of users;Drive performance optimization across rendering, memory management, and runtime efficiency for diverse mobile hardware;Write comprehensive unit tests, maintain high code coverage, and create detailed technical documentation in Confluence;Work closely with Technical Artists, Game Designers, and cross-functional scrum teams to deliver exceptional player experiences;Utilize cutting-edge AI tools (Cursor, Claude Code, GitHub Copilot, and custom AI automation) to accelerate development and enhance code quality;Continuously improve core architecture, establish patterns, and mentor team members on best practices.Requirements: 5+ years of professional software development with proven experience building complex, production-grade systems;2+ years of Unity development on 2D mobile platforms with deep expertise in Unity’s scripting APIs, rendering pipeline, UI systems, animation framework, and profiling tools;Expert-level C# with strong understanding of language features, performance characteristics, and modern coding practices;Knowledge of data structures, algorithms, design patterns, SOLID principles, and architectural decision-making;Deep understanding of memory management, draw call optimization, asset bundling, and platform-specific performance considerations;Proven ability to design scalable, maintainable systems and make sound technical decisions in complex codebases;Experience with unit testing frameworks (NUnit, Unity Test Framework) and commitment to code quality;Excellent communication skills and proven ability to work effectively in cross-functional teams.Nice to have: Experience with dependency injection frameworks (Zenject/VContainer/Extenject);Unity Editor tooling development for workflow optimization;Experience with reactive programming (UniRx) and async/await patterns;Large-scale system design experience in games or high-traffic applications;Familiarity with CI/CD pipelines, automated testing, and DevOps practices;Knowledge of addressables, asset management strategies, and build optimization.Benefits: A global data-driven company, with a unique product and strong R&D center;Exceptional innovative and dynamic work environment;Promote transparency & open employee communication;Tremendous growth & career advancement opportunities;Encourage, support, and empower learning exploration and career development opportunities;Directly impact and build personalized product experiences for our players.We offer:Generous compensation with regular performance reviews;Paid vacation and sick leaves; Comprehensive medical insurance for you and your family member free of charge;Sports expenses reimbursement;Comfortable office in BC Gulliver; Daily lunches in the office and fully stocked kitchen with the greatest coffee;Newest technical equipment (macOS);Training & Development / Tuition reimbursement; online courses of your choice;Parental leave;Employee Referral Program with great bonuses;Regular team buildings and Company Happy Hours; Relocation bonus for nonlocal candidates;Reimbursement of car parking.We celebrate all kinds of entertaining events - brought to us by our amazing Employee Experience and never forget about gifts!Join us on the Moon!