Unity Developer

Who is Hiring; Warszawa; On-site; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Generous compensation

Medical and life insurance

Relocation bonus to Warsaw

Meals and kitchen facilities

Latest tech equipment

Training & development reimbursement

Friend referral program

Team events and Happy Hours

Job summary

Moon Active, a global leader in mobile gaming, is seeking a Unity Developer in Warsaw to work on a large-scale, highly-optimized Unity codebase serving millions of concurrent users.

You will design architectures, implement end-to-end client-side features, and optimize performance across devices while integrating native plugins and third-party services. Join a fast-growing company offering extensive growth opportunities.

Qualifications

• 4 years of professional software development experience.
• Experience with Unity on mobile platforms and its APIs.
• Hands-on experience with Claude Code or Cursor.
• Strong knowledge of OOP, design patterns, and data structures.
• Proactive, good communicator.

Responsibilities

• Design architectures and implement end-to-end client-side features.
• Manage features from design to production deployment.
• Optimize performance across devices using data-driven methods.
• Integrate native plugins and third-party services.

Skills

Unity mobile

C# programming

OOP design patterns

Performance profiling

Strong communication

Proactive self-driven

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.

Unity Developer

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 optimization 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

• 4 years of professional experience in software development.
• Experience with Unity on mobile platforms, including its scripting APIs, profiling tools, UI, and animations.
• 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.

Advantages

• AI engineering --- Experience in building agentic & autonomous frameworks.
• Experience working in a high scale data driven environment --- firebase, analytics, metrics etc.

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.

Benefits

• 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.
• Training & Development/Tuition reimbursement.
• 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.