Phone call and then on site interview. 1 hour presentation about your previous research and multiple 30 min one on one meetings. The process takes weeks. Then go through HR.

I came in to talk about a research scientist position. I gave a talk, met with people I would be working with, and heard a lot about the potential project. It was all pretty standard, people were nice. There were not many questions, more being talked at than questioned. Went out to dinner with the group, toured around the campus area where I would be working. The presentation was in a seminar room and involved some questioning, but just on past research.