Development of advance applications

Hi, one question, do you or would you be able to recommend with whom I could work on a project I would like to develop around wordpress?

The project involves integration with a mail server through API's or directly to a Linux VPS depending of the possibilities and I would need to develop a panel that interacts with thousands of mailboxes on the mentioned server.

I would need design and development, where can I get this abilities while at the same time with good quality?

Thanks for your orientation

Fernando