I got my first interview through campus recruiting. It was a phone interview and then I was accepted into the second round onsite interview at their headquarters. The phone interview was pretty basic, just talked about my resume (no curve balls from what I remember). For the second round, I sat down and had 1 on 1 interviews with a handful of the employees. By the end of the second round interview process, I had spoken with people from various positions in the company, and I felt like I had a very strong idea of what the company does and how it would be day to day. The second interview was kind of long (9am - 3pm), so you will be tired by the end of it.