I got to work with a lot of very smart people (PhD's) in a close knit team. Got to learn about Machine Learning and work on a lot of interesting and challenging type of work. Worked with big data technologies such as Spark. Worked on a recommendation engine that was the first of its kind at LoyaltyOne.
I wish there was more structure to the project I was working on, as it was very research and development oriented . Didn't have a set structure and goal, sort of just went with the flow.