All Grouponers who haven’t been living under a rock this past year probably know what CX90 is. But for the few that missed out on this extraordinary project and the rest of the world, CX90 was a huge effort across the Product and Engineering Teams at Groupon where all of us came together to redesign our user experience and interface within a period of 90 days. It was an “all hands on deck” situation and probably one of the greatest collaborations we’ve seen across the organization where people from different backgrounds and areas of expertise joined forces to transform a simple vision into rea