Unity Developer

Moon Active is seeking a motivated Mid/Senior Unity Developer to join their R&D team in Kyiv, Ukraine. This role involves designing and implementing complex features for a large-scale, highly-optimized Unity mobile game, impacting millions of users globally. The ideal candidate will drive performance optimization, write clean, future-proof code, and collaborate with cross-functional teams to deliver exceptional player experiences, utilizing cutting-edge AI tools.

Must Have

• Design and implement complex features within a large-scale Unity architecture.
• Drive performance optimization across rendering, memory management, and runtime efficiency.
• Write comprehensive unit tests and maintain high code coverage.
• Work closely with Technical Artists, Game Designers, and cross-functional scrum teams.
• Continuously improve core architecture, establish patterns, and mentor team members.
• 5+ years of professional software development 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.
• 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.

Good 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.

Perks & 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.
• 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.
• All kinds of entertaining events and gifts.

Description

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!