Unity Developer

Moon Active; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Generous compensation

Medical and life insurance

Office in Warsaw (Królewska 16)

Free daily breakfasts and lunches

Latest tech equipment

Relocation bonus

Bicycle and Car parking

Job summary

Moon Active is seeking a Unity Developer to join our global mobile gaming team in Warsaw. You will work on a large-scale Unity codebase serving millions of players, focusing on performance, architecture, and quality at scale.

Responsibilities include designing features from system design to production deployment, implementing client-side features, optimizing performance across devices, and integrating native plugins and third-party services.

Qualifications

• 2+ years of professional software development experience.
• Hands-on experience with Claude Code, Cursor or similar.
• Strong knowledge of object-oriented programming and design patterns.
• Proactive, self-driven with strong communication skills.
• Experience with Unity on mobile platforms, including APIs, profiling tools, UI and animations.
• Native Ukrainian speaker.

Responsibilities

• Manage features from system design and data handling to production deployment.
• Design architectures and implement end-to-end client-side features using Unity.
• Use data-driven methods to resolve production issues and optimize performance across devices.
• Manage integration of native plugins and third-party services.

Skills

Unity

C#

OOP

Memory management

Communication skills

Mobile development

Unity mobile optimization

Tools

Claude Code

Cursor

Job description

Moon Active is a global leader in mobile gaming, creating entertainment experiences enjoyed by millions of players worldwide. Our games operate at massive scale, processing billions of events daily, and our engineering teams tackle complex technical challenges that push the boundaries of mobile game development.

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

• Manage features from system design and data handling to production deployment
• Design architectures and implement end-to-end client-side features, leveraging LLMs from day-to-day development processes up to system architecture
• Use data-driven methods to resolve production issues and optimize performance across all devices
• Manage the integration of native plugins and third-party services

Requirements

• 2+ years of professional experience in software development
• Hands-on experience with Claude Code, Cursor or similar
• Experience with object-oriented programming, including design patterns, algorithms, and data structures
• Strong knowledge of an OOP language (C# or equivalent) and memory management
• Proactive, self-driven, with strong communication skills
• Experience with Unity on mobile platforms, including its scripting APIs, profiling tools, UI, and animations
• Native Ukrainian speaker

Advantages

• AI engineering - Experience in building agentic & autonomous frameworks
• Experience working in a high scale data driven environment - firebase, analytics, metrics etc
• 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;
• Extensive medical and life insurance coverage for you and your family;
• CrossFit & running classes at the office and MultiSport card;
• Comfortable and modern office located on Królewska 16 street in Warsaw;
• Free daily breakfasts and lunches, and a fully stocked kitchen with snacks and fruits;
• Latest tech equipment, including macOS devices;
• Friend Referral Program with generous bonuses;
• Fun and collaborative workplace culture with regular Friday Happy Hours and team gatherings;
• Relocation bonus for candidates moving to Warsaw;
• 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!