Wordpress plugin PHP+MySQL developer required for ecommerce

Wordpress plugin PHP+MySQL developer required to produce website for ecommerce startup. Project requires bespoke backend. Summary of idea: Merchants create profiles similar to Facebook with standardised layout (photos need to be cropped etc). Merchants are selling downloadable PDF documents which are automatically generated based on information provided in a form. Website user can search all profiles on the home page and results show as geotagged listings on a Google Map. Selected profile appears below the map and the user can purchase items from the merchant using PayPal or similar. Key features: - Google Maps API - Account creation and profile generation - Facebook + Twitter integration for customer login options and social media add ons - Separate portals for Merchant, Customer and Webmaster with secure permissions - Ecommerce / PayPal cart implimentation - Automated PDF creation - Wordpress CMS Developer should highly proficient in Wordpress PHP/MySQL as well as front end web development technologies e.g. HTML5, CSS, AJAX etc. PSD files to be provided. Must be ready to start on project ASAP on a FULL TIME basis until completion and be willing to speak constantly on Skype etc. Good english is a must. Please start your response with the following words so I know you have read this message carefully: "I am not a robot!". Thanks Please only apply if you have demonstatable experience in developing websites with similar functionality. US or UK based references required.