Senior Unity Developer (all genders)

JustPlay GmbH is seeking a Senior Unity Developer to join our Games Team and take ownership of feature implementation and long-term maintenance across our diverse game portfolio. In this role, you will expand core gameplay features, improve the scalability of shared systems, and support multiple live titles with high-impact technical solutions.

Key responsibilities

• Own Unity feature development end-to-end, from technical design through rollout and long-term maintenance.
• Lead the scaling of core features across multiple titles, ensuring consistent quality and reusable implementation patterns.
• Identify, structure, and execute improvements within existing codebases while avoiding unnecessary rewrites.
• Collaborate closely with team members to clarify requirements and manage delivery risks.
• Optimize Unity code quality, performance, debugging, tooling, and maintainability across projects.

Requirements

• 5+ years of hands-on Unity and C# development experience.
• Ability to design maintainable, scalable Unity/C# systems using OOP, SOLID principles, and appropriate design patterns.
• Proven track record delivering shipped mobile titles, preferably in live production environments.
• Deep understanding of mobile performance, memory management, profiling, and platform-specific constraints.
• Strong communication skills for reporting progress, blockers, and technical trade-offs.

What we offer

• Flexible working hours to support a healthy work-life balance.
• Access to free personal coaching through nilo.health to support mental well-being.
• A competitive personal development budget of up to 2000€ per year for training and conferences.
• State-of-the-art equipment provided to ensure you have the tools needed to succeed.
• An engaging and diverse work environment with team members located across the globe.