There was an initial interview 1:1. I personally talked with Bruce Ballenger who is the CEO. The talk was interesting and it was a general behavioral interview. They called me in the next day for a round two and the whole process took 5 hours. There were heavy technical interviews and programming tests (to see how fast you can learn and understand a new language) and other difficult trials. It was very difficult for my MIS background (maybe less challenging for a CS background...though they would presumably have a harder time with the more business based questions). I did not get the offer.