PrestaShop Webmaster - PHP/MySQL/JavaScript/CSS LONG-TERM

I am looking for a long-term webmaster for my eCommerce site. I use PrestaShop for my open-source eCommerce platform V 1.4.5.1. Requirements: - Fast turn around time for debugging - Professional with PrestaShop (Knows the in's and out's of PrestaShop without having to look it up) - Professional skills needed: PHP, MySQL, Javascript, Ajax, CSS, HTML (Coding must not lower PageSpeed and ySlow) - Always on Skype. I need to always be able to contact you through Skype. - Reasonable rate Please send me your resume with the previous clients you currently work for or worked for before with their contact information. Also, inform me what kind of worked you implemented on those eCommerce web site. Put the keyword 'php' in the bidding and message to ensure to me you have read the entire project. As you know words cheap, and action speaks. I will not not hire you if you cannot show me the previous clients you worked for.