I had my first Interview through a job fair at my college. In the interview they first had me fill out a quiz that had mostly brain teaser type questions but also had a couple of programming questions. The programming questions were mostly algorithm based. After the quiz we had a quick interview with a recruiter and current employee, in which they asked a few personality questions and then discussed the programming questions from the quiz in depth. About a week after the initial interview, I received a call and an email asking to interview me a second time at their headquarters in Denver CO. The second interview was 1:1 and was followed by a dinner with two of the current employees. About a week later they called me with a job offer and I accepted.