Custom App to Sync Shopify inventory from Point of Sale (POS) database

We developed a private custom Shopify app for a brick & mortar store chain to synchronizer their Shopify store product inventory levels with their SMS point of sale (POS) system's windows SQL database in preparation for them to start selling their products online as well as in store.

We custom built the app, the database, the CRON jobs, the admin user interface and built & housed it on an ubuntu server in their data center. We also created the functionality for the app to create Shopify products dynamically when new products were added to the brick & mortar stores.