Amazon Software Development Engineer interview questions

A recruiter contacted me through LinkedIn and informed me about a recruiting event for Amazon's eCommerce Platforms Division taking place in my area in a month. I was surprised that Amazon would fly interviewing teams to different cities for recruitment (the usual process is for them to invite candidates to Seatlle). I expressed interest and the recruiter asked me to go through a phone screen as early as possible because the interview slots were filling up. The interview team was going to be in my city only for two days. I setup the phone interview for the same day. The phone screen as quick and the interviewer asked me a somewhat difficult question that I did not expect interviewers to ask during a phone interview. He indicated that I need not code and that he wanted to just hear how I would solve the problem. Fortunately for me, the insight on how to solve came pretty quickly and the interviewer seemed happy. After three days, I contacted the interviewer about my phone interview and he gave the good news that I had cleared it and that I would take part in the recruiting event in my city. He said he would contact me about exact date and time in the next few days which he did. The interview took place in a building in a famous area that Amazon must have leased for the event. My interview loop consisted of a 15 minute intro by the recruiter (different from the one who contacted me through LinkedIn) followed by three 45 minute technical interview and one 45 minute hiring manager interview. I thought I screwed up the first one and did well on the other two technical interviews. The last one was not a technical, the questions were more about how I would handle stress, what to expect at Amazon etc., The recruiter said that Amazon typically moves very quickly if they like a candidate and asked me to expect an email the same day (Friday) or by Sunday latest. The email finally arrived on Sunday with good news after an agonizing wait.

I had had two phone screen interviews before I went to Seattle for my onsite interview. The phone interviews were 45 minutes each and the onsite interview had 5 rounds, each about 50 minutes. It seemed that amazon was lack of software engineers because I had seen a lot of candidates. In onsite interview, I was staying in a conference room for one day except for a lunch interview. The interviewers came to the conference according to the schedule. It was a fantastic experience but I didn't not get an offer.