Web App with Amazon AWS API and Shopify Connection needed

I am looking for an experienced programmer who can develop a web app which will query amazon affiliate API for product details. The user will input the search query (ASIN value) via search box or a CSV file for bulk upload. The app will fetch all the product details from amazon API and store in the system. (do not download the images) the app will then push the same products to shopify (connected shopify store of user), the images will be downloaded in shopify and a new product will be created. the app will also run a cron job to keep the prices and inventory up to date for each shopify store. no user management or complicated things needed. It is an internal use app which we will use internally. just need the differentiation on shopify store basis. Each store will have its own products and its own markup values. more details will be provided to interested developer.