Unity Developer – Large-Scale Mobile Games

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 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.