Engine Programmer Engine programmers work on the low-level systems in regards to the game production, however, the work supports those of high-level systems and developing pipelines for such programmers. As the title states, engine programmers work on engines like Unity, Unreal or in-house engines, implementing new functionality into the engine itself by using their own initiative and ideas, to make it into a powerful system. They also try to squeeze every extra byte of memory out of the engine to make it an efficient platform.