Add Products Via Amazon.ca and Amazon.co.uk

Okay so i have many projects all related to the same thing, i need someone who HAS EXPERIENCE with [login to view URL] and [login to view URL] with adding inventory via CSV file/ Health Personal Care template. I will send you a file with item name from a company and SKUS and will ask you to make a file for me to upload with all of these listings. Each sku i will provide you might have 50 listings on [login to view URL] so i am trying to jump on every single listing for the SKUS i provide you. Please someone who is an expert with Amazon and adding inventory, creating new listings via CSV etc. Like i said i have many projects like this, the faster you complete them, the faster i'll use you for future ones. Again , i will be giving you a file with 300 SKUS, but Amazon has 2,300 listings (some are obviously multiple listings for the same SKU), i want to be on ALL of these listings. I will give you the prices that are my cost so you can add pricing that competes with others. Looking for someone fast but someone who is expert with Amazon and Amazon CSV files, inventory uploads, Formats, templates etc.