Brief and usually with HR or someone from senior management. They are either a woman or a man and they will contact you and place you in a room and then the receptionist will prepare an interview for you.

Quick and easy. They are easy to impress. Prior experience not preferred or necessary. You sit down with the only HR person and answer predictable questions. The office door is not labeled because they are afraid of security threats, just go to the second floor and ring the buzzer.