I had 5 interviews (recruiter, HR, direct supervisor, head of department, and colleague) over the span of a couple of weeks followed by ~1 week deliberation before offer. Only 1 interview was completed in person, and all of them were 1:1. Staff is spread out, though if it's reasonable for you to meet in Villanova, PA/ NY,NY/ Berkeley, CA, you'll likely have at least 1 interview in person at that particular location. The interviews were all centered around culture fit. Are you a self-starter who is okay with a healthy amount of uncertainty, thrives in a flat hierarchical environment, and loves collaborating across departments? You'll find the interview incredibly easy. And, good news, their culture is *exactly* as described in the interview process -- a rarity!