I was interviewed for 3 different projects. The interviews were online. They lasted about 30min in which they described the project and asked me a couple of questions. All they asked me about were personal traits and educational background, no technical questions. For one of the interviews I had to prepare a presentation about a given topic beforehand.

I had a whole day organized in which they made presentations about the department, lab tour and Q&A with interns. After this I had the interview with my future team. They made me feel very comfortable from the beggining. At the end they explained me the project I would work on and I made some questions I had