Email for asking to apply resume was given by in-house HR staff and I applied. three phone screen was reserved in following week and additional phone interviews was arranged after that. Interviewers are the one throughout the world location. They give me a number to access nVidia conference call center, which was not toll-free.

Tl;dr: Long interview process, very intellectually stimulating discussions, no offer due to internal restructuring. The interviewers were experts in the various skill areas required for the job, and they asked abstract, open questions. Each interviewer seemed highly qualified. Each interview was therefore an interesting discussion. At the end, the recruiter informed me that due to some internal restructuring, the position had to be cancelled.