Total 3 rounds: 1. A call from HR asking about what do you know about GT and the reason of application and some brief question about the resume. 2. There was a follow-up email after the call to schedule a 1 online review with HR, a mentor and a group leader, The online interview includes more details about background and resume contents, and answer your question about the role responsibility. It's around 30-40 mins. 3. There is a final 1-day on-site interview. Morning is to do a presentation about the past work and talking with mentors, group leaders and some other colleagues. A tour of company and 1 on 1 talk with team members in the afternoon.