Senior Unity Developer (Gamedev)

TL;DR

Senior Unity Developer (Gamedev): Developing prototypes and complete mobile games for hyper-casual and hybrid-casual titles with an accent on AI-assisted development, high velocity, and performance optimization. Focus on building internal studio tooling, integrating SDK ecosystems, and optimizing game feel across Android and iOS.

Location: Hybrid (Paris, France)

Company

hirify.global is a mobile game publisher specializing in hyper-casual and hybrid-casual games, with over one billion cumulative downloads.

What you will do

• Develop prototypes and complete games in Unity (C#) from concept to live on rapid cycles.
• Implement AI-assisted development workflows using tools like Claude Code, Cursor, and Copilot.
• Build studio tooling, including asset generation pipelines, automated QA agents, and CI/CD.
• Integrate and manage the full SDK ecosystem (ads, analytics, MMP, IAP).
• Optimize memory, framerate, build size, and load times for a wide range of Android and iOS devices.
• Collaborate with Product Managers to propose technical solutions that expand design possibilities.

Requirements

• 5+ years of Unity/C# development in mobile F2P with shipped, publicly available games.
• Technical excellence in clean architecture and advanced profiling (Memory Profiler, Frame Debugger).
• Advanced practice of AI-assisted development and a clear understanding of agent delegation.
• Strong sense of game feel and the ability to reproduce satisfying gameplay.
• Proven velocity in prototyping games within days.
• English: Fluent proficiency required

Nice to have

• Experience building internal tools or agents used by other team members.
• Monetization expertise, including ad waterfalls, mediation, and IAP.
• Advanced skills in shaders, VFX, or specialized game feel implementation.
• Open-source contributions or side projects demonstrating high technical skill.