There were two phone interviews, the first was with a recruiter then one with the direct supervisor of the team I would be working for. Once I passed the phone process I was invited to come in and interview with a few people. The first in-person interview was with two gentlemen I would be working directly with in my position, followed by an interview with my direct supervisor and the director he/she reports to. All of the interviews were pretty formal, except for the dress aspect, definitely make sure to dress to impress as with any interview.