They are really good with their recruiting process. It involves a phone screen with the recruiter, followed by a phone interview with someone on the team you are trying to join. If they like you and think you know what you're talking about, they will then follow up with a long interview process (3-4 hours, involving about an hour with a couple of the other team members).

I felt confident in my knowledge area. I believe this helped me in providing a good interview.

Describe a previous project.

Feel free to use the whiteboard to outline your project.