I applied online and was contacted via email to take a math and reasoning assessment online. It was fairly easy, they also have practice assessments that you can take prior to the real one. I was then contacted by HR to set up a phone interview with and HR rep. It was a short phone interview basically just asking about stuff on my resume and my availability. Then I went to Houston, TX for an Assessment day consisting of an individual case study, group case study, writing activity, behavioral interview, and technical interview. I was there from 8:45am-1:30pm after which they ushered me out without any lunch. The schedule listed lunch with the team, but I guess they decided not to do it that day.