The process took 4 weeks. I interviewed at Amazon in Aug 2011
Interview
I was contacted thru email by a recruiter and scheduled the first phone interview. It all went smooth and I got another email saying that a second phone interview has to be scheduled.
The second engineer I spoke to had a very, very bad Chinese accent. I was having trouble understanding what he was saying on the phone. I was like hearing 20% of the words he spoke and tried to fill/guess the rest of sentence. Nearly the whole interview was spent on him repeating the things he said, as I was kindly telling him that I understand nothing. About 30 minutes had passed when he successfully asked his first technical question. It was a really bad experience. I told about this to the recruiter and I was scheduled a third phone interview.
The third one was pretty much like the first one. Straight technical question. I did pretty well; analyzed the problem, thought it through, spoke out loud, came up with an efficient algorithm, checked for corner cases, commented on the running time and space complexity and mentioned other possible ways of doing it. I thought I aced it.
I sent an email to the recruiter after a week. He didn't reply. Another after a month, he didn't reply. After 3 months, I got an automated e-mail saying I was rejected. Not very positive for the HR of Amazon...
Interview questions [2]
Question 1
Given an array where each element is a 2-d tuple such as (int, a percentage),
develop an algorithm which returns a weighted random number in the array where weights are the percentages.
I applied online. I interviewed at Amazon (Sydney)
Interview
I can't comment much. I submitted an application for the software engineer position, and not even a minute later, I received an auto rejection email from Amazon (never received an online assessment).
2 behavioral 2 coding not very difficult. Behavioral is tell me about a time you took responsibility beyond your role and biggest accomplishment. The process is exactly the guideline they posted for interview.
Interview questions [1]
Question 1
tell me about a time you took responsibility beyond your role
It was a 2-3 round process, depending on how your interview went, with increasingly hard DSA questions followed by some HR and behavioural questions. First round was mostly easy and medium leetcode, followed by medium and hard questions in the second round and above on more complex topics.