B2B

Gamedev

Moon Active is a company driven by the mission to become a global leader in mobile gaming. Founded in 2011, our passion for creativity, cutting-edge technology, and delivering exceptional player experiences has resulted in games enjoyed by millions worldwide.

As a Unity Developer 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 project. It’s a sophisticated, ever-evolving system that demands exceptional architectural thinking, performance optimisation expertise, and the ability to maintain quality at scale.

Responsibilities

Architect & Build: Design and implement complex features within a large-scale Unity architecture, making decisions that impact millions of users;

Optimize Relentlessly: Drive performance optimization across rendering, memory management, and runtime efficiency for diverse mobile hardware;

Own Quality: Write comprehensive unit tests, maintain high code coverage, and create detailed technical documentation in Confluence;
Collaborate: Work closely with Technical Artists, Game Designers, and cross-functional scrum teams to deliver exceptional player experiences;
Innovate: Leverage cutting-edge AI tools (Cursor, Claude Code, GitHub Copilot, and custom AI automation) to accelerate development and enhance code quality;
Elevate the Platform: Continuously improve core architecture, establish patterns, and mentor team members on best practices.

What Makes This Role Unique

Scale & Complexity: Work on a mature, sophisticated codebase that handles real-world performance challenges at massive scale
AI-Augmented Development: We heavily leverage modern AI tools (Cursor, Claude Code, Copilot, custom automation) to enhance productivity and code quality
Technical Excellence: Join a team that values architectural thinking, clean code, and continuous improvement
Impact: Your work directly affects millions of players and contributes to a product generating significant revenue
Growth: Learn from experienced engineers, tackle meaningful technical challenges, and shape the future of our platform

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
Solid CS fundamentals: Data structures, algorithms, design patterns, SOLID principles, and architectural decision-making
Mobile optimization mastery: Deep understanding of memory management, draw call optimization, asset bundling, and platform-specific performance considerations
Architectural mindset: Proven ability to design scalable, maintainable systems and make sound technical decisions in complex codebases
Quality-driven: Experience with unit testing frameworks (NUnit, Unity Test Framework) and commitment to code quality
Strong collaborator: Excellent communication skills and proven ability to work effectively in cross-functional teams
Fluent in English and Ukrainian, both written and spoken

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
Experience with AI-assisted development tools (Cursor, Claude Code, Copilot) and workflow automation
Knowledge of addressables, asset management strategies, and build optimization

Benefits

Why join Moon Active?

Be part of a leading global mobile gaming company with a unique product enjoyed by millions;
Thrive in an exceptional, innovative, and dynamic environment;
Enjoy full transparency and open communication with talented colleagues across teams;
Take advantage of tremendous opportunities for professional growth and career advancement within a rapidly expanding company;
Influence and help build personalized product experiences that impact millions of users worldwide.

We offer:

Generous compensation; paid vacation and sick leave;
Comprehensive medical and life insurance for you and your family members;

CrossFit & running classes at the office and MultiSport card;

Comfortable office located on Królewska 16 street, Warsaw;
Free daily breakfasts and lunches, as well as a fully stocked kitchen with snacks and fruits;
The latest tech equipment, including macOS devices;
Training & Development/Tuition reimbursement;
Friend Referral Program with generous bonuses;
Friday Happy Hours and team gatherings to foster a fun and collaborative workplace culture;
Relocation bonus for non-local candidates;
Bicycle and Car parking.

We Play to Win! We Play it Smart! We Play as a Team!

We are committed to investing in our employees and fostering a workplace that champions innovation, creativity, and collaboration. At Moon Active, we empower our team members to unleash their potential and achieve remarkable results every day. We encourage bold decision-making and believe that every individual has a significant impact on our success. Join us and level up your career in a supportive and high-achieving environment!