The Senior Game Developer will be responsible for developing core gameplay systems and mechanics for mobile 3D games using Unity (C#) or Unreal Engine (C++). This role involves translating design and art assets into engaging in-game experiences, creating player controls, camera systems, AI behaviors, and optimizing game performance for Android and iOS devices. The developer will collaborate cross-functionally with various teams, integrate third-party SDKs, maintain documentation, and manage game build/deployment processes, ensuring high-quality post-launch support.