Had a 1:1 interview at my school campus. Basic questions, nothing hard. Then I got a call for a site visit, which was more like a tour, with lunch with the branch head, and a lot of presentations. The site visit lasted a full day, about 8 hours. After accepting be ready to do a lot of paperwork for security clearances, and also be ready to pay upfront for moving expenses because they pay you back AFTER you have moved.