A .NET CF (Compact Framework) developer designs, implements, and manages software applications for mobile and embedded devices using the .NET Compact Framework. They develop applications in C# or VB.NET languages, ensuring high performance, responsiveness, and seamless integration with data storage solutions. They are responsible for maintaining code quality, organization, and automatization. They troubleshoot and debug to optimize performance, and they also collaborate with internal teams to design user-friendly interfaces, content, and graphics. Additionally, they may also be tasked with updating existing .NET CF applications and providing technical support when necessary.