Initially had 3 phone screens with 2 managers and the Lead Hardware Architect. These asked about background and were behavioral regarding how I approach situations as a manager, leading others, coaching, hiring, and firing. Then came on-site interviews, which was a day-long interview panel with 6 people. Tiring day but I felt I had the right background and didn't have any issues answering the management and some technical questions about server architecture. The entire process from phone interviews to starting job took about 8 weeks.

Scripted, for specific words. But that also makes it clear what to expect. Practice with the available stories and you are set. All questions are tell me about a time style so prepare well. The system engineering questions are straightforward but prepare to dig deep. Overall, so much info is available that with enough practice you should be ok