A junior game developer is another name for an entry-level game developer who assists experienced game developers with video game software design, creation, and testing. In this position, you learn your responsibilities and duties under the supervision of an expert game developer who teaches you the skills you need for the job. This includes tasks like coding games, designing graphics, developing a game for a specific gaming console or computer operating system, and testing the game for bugs. You also help create and optimize testing programs and processes to ensure that each game meets a company’s standards for its final products.