I was referred and then contacted by a recruiter a few days later. My referrer had to ping the recruiter repeatedly throughout the process, so be prepared to ask your referrer to help things along. I had a brief phone interview with the hiring manager of the team I wanted to work on. He liked my background a lot so the phone interview was concersational, friendly, and stress less. Interviews are scheduled way in advance. It seems they have a hard time managing all the schedules. Patience is required. The interview process was pretty intense and tiring. Six 45 minute interviews more or less back to back save for a lunch break. All questions are behavioral and all are attached to the "Leadership Principles." If you know them, you can pick up what trait they're looking to see. Definitely spend lots of time thinking through the last few years of your work life and cache SEVERAL examples for each. My interviewers were exceptionally bright and respectful but cut-to-the-chase professional. I was stumped once or twice but we just kept moving. All of them left time for me to ask them questions.