They brought me in for a 4 hour interview, including lunch. First hour was with two engineering managers. They asked me to model a "professor" - "class" - "student" relationship as database tables and as JPA entities. Only complication was a many-to-many from students to classes. Second hour was with a QA manager and dev manager. They asked me to create a class diagram for a Pilot - Flight Attendant - Passenger domain to show inheritance and polymorphism. Included a wrinkle where they introduce the pilot or flight attendant flying as a passenger "deadhead". I used composition to solve that problem, but I think decorator pattern would have been better. Then lunch at a very nice restaurant with two project managers. Lots of time here to ask questions. But it was a bit awkward as they didn't talk freely but just question and answer over lunch. Then interviewed with two architects. They asked me to navigate a directed graph with cycles. Study your recursion for this problem. Final interview was with a dev manager who just answered any final questions. They responded very quickly with a hiring decision.