A Matchmoving developer is responsible for creating representations of live-action scenes in film or video production. They utilize software to match the camera movement in the digital space with the original live-action footage. This allows the seamless integration of elements into the scene. Their tasks include tracking the camera's motion, estimating the lens distortion, and recreating the scene geometry. They play a critical role in the visual effects (VFX) industry, as their work forms the foundation for the integration of visual effects in live-action films, making the effects appear realistically embedded in the environment.