Amazon Software Engineer-II interview questions

The interview process started around early 2019. Received an email from a recruiter to do an online assessment. Two questions similar to Leetcode medium and hard. Did it and got contacted for an on site interview. There were four back to back interviews in the span of four hours. Every interview spent around 10-20 minutes of time on leadership principles, so be sure to know all of them and have a variety of examples for each one! The technical side of the interview relied heavily on system design, such as building Minesweeper, a parking structure, and Amazon Prime Video. There was also a algorithm question involving a Leetcode Hard Tree. Overall an interesting and good experience, the onsite felt stressful yet at the same time doable. Respectful interviewers who are trying to learn the most about you. It was hard to gauge how I was doing from their reactions due to them typing on their laptops constantly.