Amazon.com Software Development Engineer Interview Questions & Reviews
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Updated Feb 9, 2012 – Interview questions and reviews posted anonymously by interview candidates.
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Difficulty Rating [?] Based on 211 ratings 
“Difficult” Interview
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Interview Experience [?] Based on 211 ratings
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See who your friends know who've worked at Amazon.com and could give you an inside look.
See who your friends know who've worked at Amazon.com and could help you prep for an interview.
| 1–10 of 207 Amazon.com Interviews | Sort by |
Software Development Engineer at Amazon.com
Posted Feb 6, 2012 — 1 of 1 people found this helpful
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3.0
Average Interview
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Overall Positive Experience
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Received and Accepted Offer
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Interviewed Feb 2012 in Herndon, VA (took 3 weeks)
It was my second phone interview after a first phone interview 3 weeks back and a coding assignment. The interview surprisingly did not have any coding questions (although the first interview had coding). Most of the questions were related to OOPS/Scaling/DNS
Interview Questions
Other Details
The interview consisted of a Phone Interview.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Feb 9, 2012
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3.0
Average Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed Feb 2012 (took 3 days)
Submitted my resume at the departmental career fair around the end of January and got a call for an interview in the first week of February. All the interviews were on-campus.
Interview Questions
Other Details
I got the interview through a College or University and the interview consisted of a 1:1 Interview.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Feb 7, 2012
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3.0
Average Interview
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Overall Positive Experience
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Interviewed and No Offer
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Interviewed Jan 2012 in Seattle, WA (took 2+ weeks)
I had 2 phone screens and than was invited to Seattle for a visit which included 5 interviews and meeting with recruiting manager.
Interview Questions
Other Details
I Applied Online and the interview consisted of a Phone Interview and a 1:1 Interview.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Feb 6, 2012
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3.0
Average Interview
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Overall Positive Experience
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Interviewed and No Offer
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Interviewed Feb 2012 (took a day)
3 interviews of 45 minutes each
- 2 design problems(metro planner and one more)..involved using most efficient data structures(hash map, BST, linked lists),
- merge two BST
- keep versions of a stack most efficiently
Interview Questions
Other Details
I got the interview through a College or University and the interview consisted of a 1:1 Interview.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Feb 5, 2012
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4.0
Difficult Interview
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Overall Positive Experience
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Interviewed and No Offer
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Interviewed Jan 2012 in Seattle, WA (took 6 days)
My friends hand in my resume and I get the on-site interview directly.
The interview process is basical, first have a lunch with several amazon employee. Then each candidate was brought to the room and start the interview. I had four interviews in total, and I did perfectly in the first one, the second one and the last one. I think they fail me because I didnt do well in the third one. So, just bear in mind that Amazon is very picky, if you screw up one of the four interviews, then you fail.
Interview Questions
Easy one, just use a trie. During the process, you will be asked questions about big O stuffs. Just remember your data structure
Easy one again. Use a hashtable to store the words, after that, use a heap to return the 10 most
I screw up this one. That's because the interviewee gave me a sheet full of rules, but only two of them are useful in the first part.
First part: given a formatted Roman String and convert them into numbers.
Easy one, but I spend nearly 25 mins on it.
Second part: how to convert a number into Roman Strings.
Recursion will work. I only have ten mins, so the interviewee doesnt let me finish this up
The interviewee is helpful, he gave me hints and I finally solve it. First copy the list with only value and next. Save each one in the hashtable. And then change the random value.
Other Details
I got the interview through an Employee Referral and the interview consisted of a 1:1 Interview and a Group/Panel Interview.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Feb 3, 2012
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3.0
Average Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed Dec 2011 in Seattle, WA (took 3 months)
The recruiters were friendly; aced through 2 telephonic interviews and was invited to the on-site interviews. On the day of interview, I was interviewed by 5 amazonians; 4 tech and 1 lunch interview. I believe I did well in all but the first interview... After a week, I was notified that I wasn't selected to make a job offer. I guess I was disappointed, as I thought I did well, but wasn't made an offer. But, then your performance is relative to the other candidates they interviewed...
Interview Questions
Other Details
The interview consisted of a Phone Interview and a 1:1 Interview.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Feb 8, 2012 — 0 of 1 people found this helpful
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3.0
Average Interview
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Overall Negative Experience
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Interviewed and No Offer
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Interviewed Nov 2011 (took a day)
The interviewers are quite nice. I have back to back 2 phone interviews, 45 minutes each, and 15 minutes rest between the two. Each interviewer asked me some algorithms problem, and then let me code. The problems are not very difficult, but I did not perform well so I was declined the other day.
Interview Questions
ex. input "he is a boy", output"boy a is he"
Other Details
The interview consisted of a Phone Interview.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Jan 29, 2012
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4.0
Difficult Interview
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Overall Neutral Experience
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Interviewed and No Offer
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Interviewed Jan 2012 in Cambridge, MA (took a day)
They were building a new site in Cambridge so they had the interview in Boston at a hotel. I waited in the lobby for the interviewers, who arrived in an elevator and then took you to be interviewed. Others also waited in the lobby to be interviewed. I was told there would be either 2 or 4 1:1 interviews, each about an hour.
The interview itself was primarily what my experience was, followed by questions about things I had done, followed by coding problems. Then I was asked if I had any questions for them.
I was already happily employed and would not have looked forward to driving to Cambridge. That day it took me 1.5 hours to arrive. Also I had read about carrying a pager here on glassdoor.com, and asked the interviewers about that. One said you carry it for a week every month; the next said you carry it for a week every 2 months.
I was told at the end of my 2nd interview that there would be just 2 interviews that day. I responded, "That must be a bad sign" with the response that it probably wasn't a good sign. Sure enough I did not get the job.
Interview Questions
Other Details
I got the interview through a Recruiter and the interview consisted of a 1:1 Interview and a Skills Test.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Jan 28, 2012
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4.0
Difficult Interview
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Overall Positive Experience
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Received and Accepted Offer
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Interviewed Jul 2010 in Hyderabad (India) (took 1 week)
I got shortlisted for interview via university placement programme. I was called to their office for interviews. I had 4 rounds of an hour each. All rounds focused on skills like Problem Solving, Coding, Data Structures and Algorithms. There were some puzzles in one of the rounds. One thing i want to highlight about coding is they take it seriously. You need to avoid any logical error with even the minutest of edge case and the code needs to be what they call "production ready".
The questions were pretty standard and a quick google search would tell you most of them.
Interview Questions
Negotiation Details
No. Since this was an offer via campus placement, there was no negotiations.
Other Details
I got the interview through a College or University and the interview consisted of a 1:1 Interview and a Background Check.
Helpful Interview?
Yes |
No
Inappropriate?
Software Development Engineer at Amazon.com
Posted Jan 18, 2012 — 1 of 1 people found this helpful
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4.0
Difficult Interview
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Overall Positive Experience
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Interviewed and No Offer
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Interviewed Oct 2011 in Seattle, WA (took 1 week)
I Applied Online and got a call for onsite interview. There was some interview event going on and so I did not have to appear for Phone interview prior to this interview. I was flied to Seattle and had four rounds of interview. All the questions were focused on Algorithms and Data Structures.
Questions were 1. "Solve a maze", you have a 2D matrix with 1's as blocked and 0's as path. Find a path from one corner to another, backtracking should be allowed.
2. Prove that tree is BST.
3. Ransom note problem - prepare a note(array) from a given magazine(array).
4. Keep track of history of users of Amazon site in pairs of 3 pages that they have consecutively visited.
Interview Questions
3. Ransom note problem - prepare a note(array) from a given magazine(array).
4. Keep track of history of users of Amazon site in pairs of 3 pages that they have consecutively visited.
Other Details
I Applied Online and the interview consisted of a 1:1 Interview.
Helpful Interview?
Yes |
No
Inappropriate?
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