A Microsoft Mediaroom Developer works on the Microsoft Mediaroom platform, an IPTV solution for delivering digital television programming. They design, develop, and manage applications and services for interactive TV experiences. Tasks include creating user interfaces, integrating third-party applications, ensuring smooth content delivery and troubleshooting issues. They work with various programming languages, databases and APIs. They also collaborate with other developers, system engineers, and product managers to improve the platform's functionality and user experience. Moreover, they ensure the platform's security and compliance with industry standards, while staying updated with latest technological advancements in digital TV technology.