I had to send an email with my resume. Then they flew me out. There I had several rounds of interviews. Some 1on1 and some panel. Lunch with potential team members. More interviews in the afternoon. It was very standard, nothing unexpected. They asked questions off my resume and other questions on personal hobbies and interests.

I was contacted, did a short fifteen minute interview which was standard HR stuff and then did an on sight which was about 6 hours. The on sight started with a tour of the facility, which also served as a time for them to ask me questions about what I observed. Then the other ones were about my experience. There was a lunch with two younger people that was less formal and gave me a chance to hear about the culture of the company. Overall a good trip.