ofbiz markerplace integration

Please read the requirement clearly : Have strong knowledge in Java , Webservices 1) We are customizing ofbiz for order management system to integrate with different ecommerce platforms. 2) Need to integrate ofbiz to Amazon, bigcommerce, magento. 3) Integration should run every 5 minutes to pull orders from above marketplaces and create order in ofbiz. 4) Integration should run every 5 minutes to get tracking information for those orders and update the marketplace with tracking and update inventory count. 5) Integration with FedEx, and Endicia to create shipment labels within ofbiz. 6) All of the above integrations will be tested by our team before closure of the project.  7) We will provide all API details required. There are total 5 integrations to be done. Desired Skills Java, Web Services, Amazon Web Services, Apache OFBiz, xml Web Services