I interned at @WalmartLabs during my summer break in 2016. Where I had the fortune to work on one of their customer facing application the Walmart Savings Spotter that is a chrome extension helping customers shop easier than ever by notifying customers of every day low prices offered by Walmart and giving lower-price alert when you shop on any website. It also keeps track of Clearance and Rollbacks on thousands of quality items.
The project aimed at understanding consumer needs and competitor products in depth and provide quick iterations of the extension, test and improve to finally design an extension that would increase click throughs and drive traffic to walmart.com. This involved interfacing with the development team and taking part in discussions with engineering, getting the designed developed quickly to test and iterate and handing off final design specs for development.
Unfortunately! due to the confidential nature of this project and an NDA with @WalmartLabs, I would not be able to share any further details on this platform. We could however discuss the same offline.