A GearVR developer designs and creates virtual reality experiences for the GearVR platform. They use programming languages like C# or C++ and engines such as Unity or Unreal Engine to develop immersive games, simulations, or educational applications. They understand VR principles like motion tracking, stereoscopic rendering, and user interaction. The developer also optimizes the VR experience to maintain high performance on mobile devices. They troubleshoot and fix any software bugs, and may collaborate with graphic designers for the visual elements. They also stay updated with the latest VR technology trends to ensure the applications stay relevant and competitive.