There is 3 rounds of interviews. 2 nd round is technical questions. First round is mostly to know you understand your experiences and your passion. Second round they ask some basic math analysis calculations

There were 3 rounds in total, where one was with the hiring team to find out if you have enough interest, then with someone above them, who was testing the technical skills and more background. Finally was a presentation where you had a week to present about a given topic to 2 interviewers.