Hi,
I can start now, I have gone through your project ("Website Integration with Google Merchant")
requirements and found myself as a best available freelancer for this project. I have team of 15 tech gurus so I will not disappoint you will defiantly provide the best solution within your time and budget.
I have Completed many complex website in PHP, Java and Wordpress with custom Module/plugin and templates including Booking, wishlist, Security, shipping, Multi Store, Auctioning, Multilingual etc.
I am expert in Custom API, PHP, Wordpress, Mysql, HTML5, CSS3 Javascript, also used Betfair API