There are three rounds total. Two phones screens and one on-site interview. In the first phone screen, they just ask about your resume and your experiences. If they think that you are a good match, they will schedule a second phone interview. The second phone interview is a technical one. There was no coding involved when I did mine. They asked very basic concepts and programming problems. I think they just want to make sure that you can code before they invite you to do an on-site interview.

2 interviews, back to back, each roughly 1 hr 15 min. You get asked 2 programming questions of around easy-medium difficulty. Then some behavioral questions, and then allowed some time to ask your own questions.