Export software for Etsy products to Amazon, Ebay, Walmart and Shopify

Require support integrating and managing 500 etsy listings onto
Shopify, Walmart (im UK based so need help with understanding this), Ebay and Amazon
This person will primarily manage the integration with the aim of having all 5 stores running on one platform.
Anyone with substantial experience in this field will be considered.
Project completion 2 weeks full time with daily meetings over voicecall.
Thanks