The process took 1+ week. I interviewed at Amazon in Feb 2010
Interview
First I get two phone interviews. In the phone interviews, they asked me a lot questions about c/c++. Because I have a lot of experience about Unix network programming. They ask me something about tcp/udp and thread programming. For the onsite interview, they ask me something about design pattern, and how to design a phonebook. They also asked something about shell programming. It is not very hard.
but you need to ask hints and make sure whether your idea is correct. : )
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.