I had 4 rounds, all telephonic. Was called over to Virginia for an in person interview. Very organized process, had one on one interview with a lead engineer, a panel interview with 5 senior managers and final interview with the manager. Company paid for the travel and stay. Unfortunately, I was not offered the position. Had a wonderful experience overall. Good people around and good ambiance to work. Happy to have interviewed at my dream company though I did not get an offer. Wish you the best for your interview.

Got the interview through career fair. Initial screening at career fair and then got next round in the following week. Second round had a good mix of technical questions and behavioral ones.