C++ C# developer to add a small form

I am looking for a C++ C# developer to add a small form to an existing project. The form needs to be written in C++ and should collect text data from the user through a textbox control. The form should be integrated with existing components of the project, making sure all functions can do their job as expected. The developer should have extensive knowledge in C++ and C#, and must be willing to carry out any necessary tests to ensure smooth operation of the form.

The project is a mix of C++ and C#