A gameplay programmer helps develop, document, test, and debug online or mobile game systems. Responsibilities include writing code with scripting languages such as C++, JavaScript, HTML, and Python; looking for ways to modify code; implementing functionalities such as controls, AI, and NPC behaviors within an established framework; and fixing design issues. They must communicate and work closely with other programmers to provide technical and creative feedback and meet project goals. Qualifications to become a gameplay programmer include a bachelor’s or master’s degree in computer science or a similar field and fluency in programming languages.