An IMA SDK developer is responsible for integrating Google's Interactive Media Ads (IMA) SDK into digital platforms to enable the display of linear, non-linear, and companion ads in interactive media content. They work on creating interactive ad experiences in web, mobile, and connected TV applications. This involves writing, testing, and debugging code, ensuring compatibility across devices, and troubleshooting issues. They also collaborate with other teams to enhance ad functionality and user experience, while adhering to technical specifications and guidelines. They play a critical role in monetizing digital media content through effective ad integration.