If you work at a development studio and are responsible for creating the game’s particle and collision systems, your job role would be physics programmer.
A physics programmer tends to be the main person to the job. he works on the basic laws of physics and creates the basis for the game. It requires vast knowledge to become a physics programmer because it includes developing features related to functionalities in order to create a game that simulates actions such as collisions, moving objects, gravity, soft bodies, fluids, etc.
