The interview was pretty intimidating. I met with three members of the team. They asked a variety of questions. The questions focused on what skills could I bring to the team, and why I wanted to join the team. The initial contact was through a job posting at my school's career services website. After emailing the team directly to show that I was interested in the position, they emailed me back the next day. It took about a week to get in for the interview. I have since moved on to another position, but the interview process was nothing to be worried about. I would imagine that different advisors have different interview processes. Just be prepared to discuss what you can bring to the group.