I need a software expert to develop a tool to manage a dropshipping based e commerce

Looking for an experienced professional that want to support me in developing my dropshipping e commerce business. At the moment I have a single supplier, but the architecture must be thought like I'll add some new suppliers around the word. This is how the system should work, i need support to desing the architecture and implement the solutions: 1- I got a csv file from a single supplier 3 times a day. This csv contains: Supplier SKU, Qty, Price. The file is published on a dedicated FTP; 2- This csv must be imported. The system must process this csv in order to update the e-commerce database. For example this tool should be able to re price the imported products according to specific criterias like product category, costs, availability and other which I want to customize freely. Another task to be performed is to update the inventory. I want to keep my SKU indipendent from suppliers. E commerce database must contain all relevant infos to prepare an upload file compatible with current API from Amazon, E bay, E Price ... 3- Once those adjustments are done in the e commerce database I need to got an output csv to upload on Amazon, E Price, E Bay etc 4- At the end of each day the system should be able to generate a csv file containing the orders of the day and the custmers details for the shipping. The ideal should be to automatize this procedure sending this email to the droposhipper wharehouse. 5- I also need to create pdf invoices to be sent to the customers and to the dropshipper. -Technology- I have no preference for the e-commerce platform, so feel free suggest your solution in term of technology that must be adopted. I had experience with woocommerce and I don't this this can suit my needs. I can consider both a web app or a specific software, no problem. I just want something that works Hope I have been enough clear. I'm sure you got already similar requests. I'm available for clarifications. Vincenzo