Electronic Arts is seeking a Game Modes Engineer for EA SPORTS FC, focusing on the Ultimate Team mode. This role involves working with Producers, Designers, Artists, and other Engineers on game mode logic, UI, online services, and tools. Responsibilities include establishing end-to-end functionality with server and client engineers, designing REST-based HTTP APIs, and maintaining game features. Candidates should have a strong background in C++ and object-oriented design, with at least 5 years of software development experience.