Integrate web design with existing PHP code

Looking for a professional PHP developer to work on existing PHP code. We already have three html designs that we would like to integrate with existing php form code. The selected developer needs to work on the following - Integrate the new html designs with existing php dynamic form - Add client side validation of the mandatory fields - Add client side validation of the file fields (max upload size and file types) - Add file upload progress bar like Gmail file upload - Implement asynchronous file upload (without submitting the whole page like gmail file upload) - Add drag/drop into file upload field Note that the dynamic form we have has admin area that allows us to add/edit/delete fields