I first had a phone interview with two people, then got invited to a hiring event with over 200 people. The interview took about 45 minutes. There was a panel of three from the department. We mostly talked about my experience with a couple behavioral questions, but nothing too difficult. They were looking to hire a lot a people and it seemed like everyone I talked to got offers. As long as you have some good experience, preferably an internship, you should be fine.