Very extensive, Unnecessarily so. It was a recorded answer session online, phone call, then a video call interview, then finally an in person interview on site. I made it to the final interview in a two-month span.

First was a Zoom interview w/ recruiter. If you move in then it's two in person interviews on the same day with different hiring managers. Standard STAR format questions. They give you a tour of the campus and offices to give you a sense of the working environment.