A junior C# developer is an entry-level programmer whose role is to assist more experienced engineers in the software development process. They can either work in the backend or front end process with a programming framework. However, their duties are limited to fixing bugs, writing basic code, attending meetings, and learning from other developers.
Some skills you must have as a C# developer are data types, user interface, database management, etc. You must also be proficient in the .NET and Mono frameworks and deeply understand object-oriented programming.