I will not say the questions as I have an NDA signed, but I can tell you that all of them were in Leetcode or in the past posts. In general, the level is LC medium. The in-house interview had 1 system design, 1 ODD, 1 behavioural, 2 technical.

To be honest, my experience with the interview was terrible. In every round I had 20/30 min of behavioral questions, like "Tell me a time when your peers didn't agree with you", "Tell me a time when you had to push yourself beyond your competences", etc etc etc. Not only that, the third round was only behavioral.

At the end of the third round I was really frustrated: an answer to this question could last around 5 minutes I would say. Ok, first 2 rounds, 5 answers maybe, then third round, 10 answers maybe, so 15 anecdotes in total already at the third round. I mean I don't have all those years of experience for all of these anecdotes, but even if I had 20 years of experience I would not even remember all of them! They have a list of questions from which they choose the ones to ask, but sometimes I had the feeling the interviewers were just blindly doing these questions because it is imposed to them, without fully realize why they are doing it.

Usually they leave 5 minutes at the end of every round to ask questions. So, at the end of the third round I was so frustrated that I turned into the bad guy and I started doing these behavioural questions to the interviewer: "So, you have these Amazon Leadership Principles, tell me a time when you had disagreement on them with your peers", "Tell me a time when your boss told you that you were not following the LP" and so on. Funny thing, the interviewer was not able to answer and was cutting short on the answers.

In summary, be prepared to answer all of these behavioral questions and have a bottle of water close to you, because you'll talk a lot! Coding is probably the nicest part of the interview.