Amazon

Two 60-minute interviews with around 15 minutes being behavioral. Leetcode and also Leetcode design-like questions. Had a third round with hiring manager and was the same 60-minute process.

Very nice and helpful interviewers, giving feedback when necessary. Interview started with few behavioral questions which could be nicely answered using STAR technique, then 2 stage coding problem with medium difficulty.

It was very hard, based on DP and behavioral questions. They will ask LP questions for 30 minutes and then start coding questions. Optimization is key. System design is the tough one to crack.