An entry-level .NET developer creates or manages an application for a business or organization using Microsoft’s .NET software framework. As a .NET developer, you create or maintain software utilizing the framework. You may also write code for a computer application using .NET. Multiple programming languages are compatible with this framework. Your other duties may include monitoring a database to ensure data security and consistently updating software and applications for efficiency. Providing support may be one of your responsibilities and may require varied work hours.