I applied through college or university. The process took 4 weeks. I interviewed at Amazon (Seattle, WA) in Nov 2012
Interview
There were two rounds telephone interviews and I was selected to interview with the engineers in customer service department.
Interview questions [1]
Question 1
It was an extended question regarding to binary tree. The tree consists of the numbers and the mathematics operations, like +, -, *, /. The root is the operator and its two children is the numbers. The question is how to calculate the result of the whole tree. I suggested to DFS the tree to reach the bottom. But my interviewer wanted me to use another way to solve the problem. I finally use recursion to solve the problem but it consumed too much time and I even didn't have time to do the second question.
Interviewed for silicon team. Have only been asked about the domain specific knowledge in 1st round and system design in 2nd round and C coding in 3rd round.
The interviews were 50 mins each.
First round with hr screening - 2 leetcode questions then hr manager screening then the loop which consists of 4 interviews each an hour long. The 4 interview questions they asked where three medium leetcode questions. And one system design interview question about how to shadow deploy a test software to millions of users.
Recruiter reaches out after applying through Amazon careers, no referral. Had an initial OA, then after a month had four rounds in two days - three coding one system design. Each round had 30 min behavioral and 30 min coding.
Interview questions [1]
Question 1
Questions were mainly hashmap, sliding window and interval related.