The process took 1 day. I interviewed at Amazon in May 2012
Interview
It was a walk in interview. Amazon picked me up from Linkedin and sent me an invite for the interview. Interview consisted of 4 1:1 technical rounds of 45 mins each. The interviewers were very nice and smart. The questions that I was asked weren't very hard but I believe to get an offer from Amazon you have to impress all of the interviewers because I am pretty sure I impressed all but 1 and hence did not get an offer. But well it was a very good experience. One learns more from failures than from success:)
Interview questions [4]
Question 1
A situation question and asked to design and write a code to achieve the goal. You are a TV company who uses certain amount of bandwidth every day. You have to tell your bandwidth provider how much BW you will need for the following day based on the anticipated usage of BW the other day. Describe the DS used and write a program to determine the amount of BW needed for next day.
Architect question. Given a list of schools in a district and a Head quarter (HQ), design infrastructure needed such that all schools can add and query student data and HQ has access to data from all schools. Also internet connection in the schools is not very reliable and some schools are in disaster prone areas. You have to secure the data.
A nXm matrix of characters. Write a program to create all possible words from each element. That is, a[0][0] with a[0][1], a[1][0], a[1][1] and with all the adjacent elements of each element. Feed each word to the dictionary and if valid, print it.
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.