Hi i can help you with c/c++, c#, python, php, javascript. and i agree your payment function.
I'm a desktop application expert, with over 4 years experience dealing with MFC, Qt, Algorithm, File compressing, OpenCV and so on.
I have also rich experience with the CodeChef contest.
I understand your requirements very well.
I've previously worked on the exact same project for another employer.
When do you need this finished by?
I look forward to working on this project with you.
Regards