Amazon Software Development Engineer, II interview questions

It was good experience. All interviewer were very kind and helpful. I was asked good questions, basically they wanted to see how I approach the problems and I am good at solving them or not. Stages: 1- 30 mins HR phone call. Your past experiences and 2 Leadership questions. 2- Codility assigment: I was assigned a codility test and was asked take it with in 1 week. There were 2 tasks 105 mins. After each task there was a following question which asks explain your solution and calculate time and space complexity. First one was simple straight forward solution just needs to be careful about edge cases. The second one was a bit more difficult. I used graph with object oriented design 3- Online onsite interview: It was online due to Covid-19 situations and took 4 hours. There were 4 parts at each parts I was asked 2-3 Leadership principle questions. First tree part was medium-difficulty coding questions just like codility. Actually I saw one of them in codility before. You should know data structures very well for example you should be able to answer why you preferred Sorted Map over Unsorted one or vise-versa. Last one was system design question. Overall there are 10-15 system design questions are asked in all interviews so you will definitely be asked one of them.