I had a total of 4 interviews. The first interview was a quick interview where it started off with a few technical questions combined with behavioral questions. The total time was 30 minutes hour. The next 3 were all on one week and all followed the exact same structure. Each starting off with behavioral questions and then moving onto the technical aspect of the interview. These 3 were more in depth questions. For each behavioral question they asked deeper and to describe it in depth.