I applied through an employee referral. The process took 2 months. I interviewed at NVIDIA (Santa Clara, CA) in Jun 2011
Interview
As i recall there was an initial phone screen with the hiring manager. This lead to a second phone screen and then I was flown in for a day of on site interviews with 7 people.
Interview questions [1]
Question 1
Most of the interviews were discussion oriented, past projects and technology used. Positive experience overall.
Some difficult questions thrown in, search algorithms.