Final interview, three rounds. Each round takes 45 mins. The questions are mainly about tuning hyper-parameters and optimizations. If you are not familiar with optimization tools, you will not pass the interview. The final round is about behavior.

1st round video interview: asked 5 questions that each took 3 min or less to answer. Pretty basic questions. One question was tell about a time you had to speak up. Another question was tell about my experience.