My initial interview was a phone interview with a recruiter. It was brief and only confirmed my experience. My next interview was a phone interview with a person who eventually became my manager. It was a fairly simple skills test. The next interview was with a panel of 3 people. They asked some technical questions and several behavioral questions. It was not a difficult interview. I was later told that 2/3 wanted to hire me, and since the hiring manager was in favor, an offer was extended.