Experienced FPS Game Developer Needed

I’m building a first-person shooter and need a seasoned game developer to move the project from concept to a solid, playable build. Your role will cover core gameplay coding, integrating art and audio assets, and ensuring smooth performance across the chosen platform... (Budget: $250 - $750 USD, Jobs: Android, Game Design, Game Development, Game Optimization, Game Programming, iPhone, Mobile App Development, Unity 3D)