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Amazon.com Software Development Engineer/Intern Interview Questions & Reviews

Updated Jun 22, 2014
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Interview Experience  

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1 person found this helpful

Accepted Offer

Positive Experience

Average Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern

I applied online and interviewed at Amazon.com.

Interview Details – 2 back to back telephonic interview of duration 45 minutes

Interview Question – Given a set of points (x,y) and an integer "n", return n number of points which are close to the origin   View Answer

Negotiation Details – There was no negotiation phase as such as the position was open to internship


1 person found this helpful

No Offer

Negative Experience

Easy Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern

I applied through an employee referral and the process took 2+ weeks - interviewed at Amazon.com in March 2014.

Interview Details – Got the interview from AWS team. 2 back-to-back 45 mins interview.
First interviewer(an indian engineer with terrible accent) asked me a classical Top K question, gave him a solution literally in a minute. However the solution needs a max-heap, commonly just use its api but this time he asked me to implement all, got quite unexpected here, it took me almost 30 mins to finish it. At last I asked question about openstack, unexpectedly he didn't know a thing about it.
Second round was about string anagrams, still gave him a solution very fast(hash table, O(n) time and O(1) space), it is the best solution. After this talked about my current project, I guess this is where I blew the intern opportunity cause I said it is totally boring :-/ .
Two interviewers were not nice, sometimes felt quite unpleasant. The HR really didn't respond any of my question and email, and I was told no offer a week later.


16 people found this helpful

Accepted Offer

Negative Experience

Easy Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern

I applied online and the process took 2 months - interviewed at Amazon.com in December 2013.

Interview Details – I applied twice, once in early October and once in late October, and I talked to them at a career fair in between those two dates. I did not get an email until the night of December 3rd, which invited me to interview on December 5th. Usually companies will invite you to choose a specific date that fit your schedule so I found it a little rude for them to schedule an interview less than 48 hours away. Luckily I was free at that time, but I did not have a positive image of the process. The two interviews were going to be back to back 45 min phone interviews that started on the hour, so 15 min break in between.

The first interviewer was very friendly and easy to talk to. There was a small chat about my resume and the technical question (through collabedit) was to write a function that takes in an int and returns a string that would be how one would say that number (ex: 123 -> one hundred twenty three; 50019 -> five thousand nineteen). At the end I asked her a couple questions about her work and then prepared myself for the next interview.

The second interviewer was even friendlier and nicer and asked more conceptual questions, but they were much easier than I expected. First question was tell me what you know about recursion. Then he asked me to code a function that returned the max integer in an array (no joke). Then a couple questions on sorting algorithms and how I would keep track of duplicates in an array, and how I would keep track of the indeces of duplicates in an array (hashset, hashmap).

Side note: the interviewers will take screenshots of your code as you type to track your progress.

After the interviews, I heard back 2.5 weeks later saying I had gotten the offer. I believe the your interviewers are from the teams that you are interviewing for. Overall, I was happy with my interviews, but very displeased with the recruiters. My recruiter still takes forever to respond to my emails.

Interview Question – write a function that takes in an int and returns a string that would be how one would say that number (ex: 123 -> one hundred twenty three; 50019 -> five thousand nineteen).   Answer Question


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1 person found this helpful

Accepted Offer

Positive Experience

Average Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern
Buffalo, NY

I applied online and the process took 5 weeks - interviewed at Amazon.com in February 2014.

Interview Details – Had applied online on Feb 1st, interviewed on Feb 13th.
Had two 45 minutes telephone interviews.

I did not get a mail for almost 3 weeks at which point I emailed them asking for status,
they replied a day later saying they'll get back to me soon and by the end of that day I got an acceptance mail.

Interview Question – The questions were straight forward, a linked list question, a string question and an algorithm question, no surprises just standard questions. The first interviewer had me write code in C++, the second one said he did not care very much about syntax.   Answer Question

Negotiation Details – I did not negotiate because it was an intern position and the compensation was good anyway.


No Offer

Negative Experience

Average Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern

I applied through college or university and the process took 1 week - interviewed at Amazon.com in February 2014.

Interview Details – Applied online and through university career fair. Two back to back 45-minute interviews were conducted at my school's career fair. Behavioral questions came first, but my first interviewer expressed dissatisfaction with my answers to each question. Technical questions weren't difficult, but I was encouraged to seek a less than ideal solution by my interviewer while trying to figure out the "trick" necessary to solve one problem in linear time.

Interview Question – Find the subarray with the largest sum given an unsorted array of positive and negative numbers.   View Answer


No Offer

Negative Experience

Difficult Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern

I applied online and the process took 4 months - interviewed at Amazon.com.

Interview Details – I applied for the internship in October and heard from Amazon to schedule an interview in February. It was very unexpected and they wanted me to schedule an interview literally the next day, 10 hours away from the time I read the email. Recruiter was generic with emails (as expected I guess). I found it very rude of Amazon to schedule an interview the next day. The whole process felt rushed. My first interviewer encountered a technical problem with collabedit and I am sure that negatively affected the first interview. The second interview was more of a "scripted" interview. More problem solving issues like find the largest integer in an array, find the third largest in an array. First problem was java inheritance with an object I've never used before, second and third problem was finding largest number and third largest number in an array of integers, last problem was find the path of the largest sum given a triangle of integers. I was asked verbal questions like what data structures do you know? What is a Doubly linked list?, etc. Those were easy.

I heard 5 days later that I was not given an offer. Asked the recruiter for advice and no response.

Interview Question – Given a triangle of integers, find the path of the largest sum without skipping.   View Answer


Accepted Offer

Positive Experience

Difficult Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern
Seattle, WA

I applied online and the process took 2 weeks - interviewed at Amazon.com in February 2014.

Interview Details – 2 rounds of phone interview. Decision in 2.5 weeks.

Interview Question – Implement a stack that supports push, pop and mode(the one from statistics) operation. Gave an O(log n ) push and pop and O(1) mode operation.Another good question was implement atoi function. I assumed it as base 10 but was asked to support from binary to any base numbers(even base 50).   View Answer


6 people found this helpful

Accepted Offer

Positive Experience

Average Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern
Seattle, WA

I interviewed at Amazon.com in January 2014.

Interview Details – 2 Hour phone interview. 2 rounds of 45 mins each in those 2 hours. Result after 10 days.

- Merge 2 sorted arrays without having duplicates.
- Find all the possible permutations of a given string.
- One simple question on hashmap.
- Hashing concept in detail.
- Complexity of all the codes.
- A few questions based on resume.


No Offer

Neutral Experience

Average Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern
Seattle, WA

I applied through college or university and the process took 1 week - interviewed at Amazon.com in March 2014.

Interview Details – A month after my online application through my schools job board I received an email to set up phone interviews. I had to choose my preferred time blocks for each day. Two 45 minute sessions back to back over the phone.

Interview Question – Basic coding and algorithms.   Answer Question


1 person found this helpful

No Offer

Neutral Experience

Average Interview

Software Development Engineer Intern Interview

Software Development Engineer Intern

I applied online and the process took 4 weeks - interviewed at Amazon.com.

Interview Details – Applied in December. Interviewed in January. Two phone interviews where I was asked to code in collabedit.com. Was asked three questions in total. The interviewers were very warm and friendly.

First interview: Asked about time complexity of Hashmaps, Linked List and arrays. Implementation of Hashmaps etc.
Given a list of numbers, determine which numbers occur with odd frequencies.
Optimize my code

Second interview: Asked to implement the game Fuzz buzz

Interview Question – Given a mathematical expression, what data structure would you use to evaluate the expression?
How would you design the above question to use Trees/Graphs.
  Answer Question

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