I applied online and the interview process took about 2 months. I had a phone screen with the hiring manager and same day I was asked to schedule a phone interview with a team member. The phone interview was one hour long and I was asked many questions (not the standard 3 questions style), including my research, about a variety of simulation algorithms and a brain teaser. Next day I was moved to the onsite interview that was scheduled a month after. This included 6 interviews of 45min and a talk. It was a very long day but I recommend you should study about the problems your team is interested in and some literature on it. I did really well in the statistics questions but not in the machine learning ones. I was contacted after 3 days with no offer.

one round screening machine learning plus coding (medium) Then give a 45 min job talk plus 10min QA Three rounds of follow-up machine learning and research interviews, one round manager interview.