GUI backend and frunt end

I am looking for help building a GUI-based web application, involving both backend programming and frontend design. I would prefer the backend to be written in C#, C++, Python, Java or Ruby. For the frontend, I would like to use React, Angular, or Vue. I am looking for the development of up to 5 pages/screens. The ideal freelancer for this project should have experience with web application development and a portfolio of successful projects in this field.