Structure (in order):
1 HR Call, 1 OA, 1 Hiring Manager Match Call, 1 Team Day (4 interviews back-to-back). Apparently, there was another call with head of recruiting during the offer stage, but I didn't make it there.
Experience:
While some interviewers were nice, some seemed uninterested or just plain rude. One started responding to emails halfway through. One interviewer tried to poke holes at points on my resume and debate me on seemingly random points. Because of that, I only had 15 minutes to do the technical problem of the interview.
Tips:
Just remember that the technical portion is not as important as the behavioral. Don't try to woo this company by saying that you're interested in learning, exploring, etc (that'll look like you'll want to leave in a few years). They care more about longevity and your traits that indicate you'll want to stay in the role for a long time. Also, make sure you have 101 reasons for 'Why Veeva?'
Summary:
So many rounds and for what? Why ask so many technical questions when they don't seem to matter much? Please make sure your interviewers know how to hold a conversation. A waste of time.