My interview was a 3 tier process: initial phone screen by the recruiter, an onsite interview with the hiring manager, and then a day full of panel interviews starting from 8 am-1:30 pm. The day ended with lunch with 2 of my potential co-workers which gave me an opportunity to ask more casual questions and the team. Everyone I met was really nice and easy to talk to. I really felt like the people I came in contact with had a lot of knowledge and are definitely people I can learn from.