PHP + Ajax Work (For Experienced Coders Only)

I have few websites running and looking for one experienced programmer to work with me on updating few lines of code on my dating website to make it more faster and user friendly. I need PHP and AJAX expert for this. If you think you are best for this project then contact me with answer why you are best for this and provide me you recent ajax work examples. This project will take max. 25 hours for experienced programmer, who knows what he is doing.