2 interviews- 1 conceptual technical, and 1 behavioral. The managers of teams that are looking for interns do the interviewing, so make sure you do well! They have a large say in whether you are accepted and which team you are placed on. My conceptual technical had a lot of Java concept questions.

The process was really long. I received the call for the interview about 5 months after I applied. I then had a interview with the manager and hiring manager. The questions were really fair though.