Ebay API, Paypal API, Amazon API Expert needed.

Hello, im looking for a expert that have good experience with Ebay, Paypal and Amazon API. PHP and MySQL Skills would also be good. Im using a Prestashop online shop and i need to make it fully working with Ebay,Paypal and Amazon. I will use a module for this named magnalister this will receive orders from ebay and amazon and also list products to the different platforms. What i need is customization for these things. This job is for allowing me to send messages from my online shop to ebay customers through the ebay message system (EBAY API). So this is a small job but more projects will definately following. So im looking for an API expert for many future projects. thanks