An FMOD developer is responsible for creating and implementing audio content in video games or multimedia applications. They use FMOD, a sound effects engine and authoring tool, to create rich, immersive soundscapes. Their tasks include designing sound effects, creating interactive music, and integrating audio into game engines like Unity or Unreal. They also troubleshoot and optimize audio performance, ensuring that the sound aligns with gameplay and enhances the player's experience. Additionally, they collaborate closely with game designers, programmers, and other team members to ensure the audio content fits the overall vision of the project.