Shopify / Google Inventory

Looking for a Shopify and Google inventory expert to help me with my inventory management needs. The ideal candidate should have experience in syncing inventory between Shopify and Google. I currently have an existing inventory system in place, but I need someone to help me optimize it. My inventory consists of more than 1600 products, so experience with managing large inventories is a must. I only need help with about 250 products that do not have GTIN numbers and or mismatched information from my feeds to my store. Some products may have to be deleted in which case we will have to work together to manage my distributors feed. Working together, working on EST time zone are a must. If you have read all of this please type "Lear Inventory" on the first line of your response.
I need someone who specializes in Shopify and Google Inventory.