Programmer to integrate our ECWID Store with Amazon European Seller account.

We want to fully integrate our website ecommerce store ECWID with our Amazon European seller account, so any orders that we receive via amazon European marketplaces (UK, France, Germany, Spain, Italy) are processed through ECWID and our current fulfilment company James & James. We want to remove the character limits from our ECWID Billing and Delivery address fields, and ensure the ECWID data feed between our fulfilment company James & James is mapped and pulling through correctly. Once our contract expires with James and James we are also looking to migrate over to Pan European Fulfilment by Amazon, so it's important that, when we decide to move, we have the option for any orders received through our website store ECWID will be fulfilled by Amazon. The process of ordering via our website must appear like it's going through our ECWID store and not be a simple website redirection to our Amazon seller account. All orders must be processed accurately The solution must be robust and scalable, so when new products are added they're also processed accurately It is possible to integrate Ecwid with any 3rd party payment method and marketplace using their Payment API. You can find the needed documentation here: [login to view URL]