C# Expert for Remote Administration Tool

I need someone proficient in C# to help create a Remote Administration Tool (RAT). This tool will primarily offer remote desktop access. A user-friendly graphical user interface (GUI) is a must, with a clear and clean design that's simple to navigate. It should be tailored specifically for a Windows operating system.

Ideal Skills:
- Strong background in C#
- Experience in creating GUI
- Expertise in remote desktop functionalities

Experience:
- Developing RATs
- Working with Windows OS
- Designing intuitive GUIs