Market place expert needed (Setup account & Product upload , research , keyword research ,optimisation)

I am looking for an experienced marketplace expert who can help me with my project. Specifically, I need assistance with setting up an account on Seller Marketplace platform such as Shopee, Lazada and Etsy. Also, I need help with uploading, researching and optimizing product listings. The type of product I need to list is jewellery items and there will be between 1 to 50 products uploaded. This project requires the expertise of someone with a thorough knowledge of selling products on marketplaces. Acknowledging this, I will appreciate your response if you possess such qualifications and experience.