First interview was a recorded interview with 6 standard questions for you to speak on your skills/experiences. Once past that stage, was flown to one of their "Superdays". 3 Separate interviews, about 1 hour each. 1 was a technical case study, the other 2 were more behavioral. Was applying with a focus in information security, so case study was focused around assessing a client's cyber maturity, and how to go about improving it. All 3 interviews had a conversational/relaxed overall feel.