Amazon.com
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www.amazon.com Seattle, WA 5000+ Employees

# Amazon.comintern Interview Questions & Reviews

Updated Apr 10, 2014

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### Interview Difficulty 376 Ratings

508 candidate interviews
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No Offer

Positive Experience

Average Interview

## Software Development Engineer Intern Interview (Positive Experience; Average Interview)

I applied through college or university and the process took a day - interviewed at Amazon.com in September 2013.

Interview Details It was a on-campus PI. There were 3 rounds. One coding round and 2 PI's.

Interview Question – There was as such no hard question for me. But unfortunately i was not prepared for this interview. Frankly this was my first ever interview. So yes i was bit nervous and i didn't knew about the tips and tricks for cracking the interview at that time. I was asked the following 2 questions:

1. given a tree, do the level order traversal of the tree. Explain the logic and write it's proper code not pseudo-code.

2 given a link list, Reverse a Linked List in groups of given size. write it's code.

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Accepted Offer

Positive Experience

Average Interview

## Intern Interview (Positive Experience; Average Interview)

I applied through college or university and the process took 2 days - interviewed at Amazon.com in September 2013.

Interview Details Amazon written
20 mcq on basics of c,os,networking+ 2 coding (left view,rotate a matrix by 90 degree)

Interview(round-1)
1.you have to find p,q of matrix p*q
such that it fill n elements(n given)
Such that
a) matrix should be nearest to a square matrix and
b) 0<=((p*q)-n)<=2

2. zig-zag traversal of tree

3.you are given an array of length k and it have numbers from 0 to n (where k>>>n) in O(k) time and no extra space find occurrences of each element in O(k) time only

ROUND-2
1. You are given row and column wise sorted matrix you have to find and delete an element such that it is still sorted in O(n) time
2. Find if sum of any 2 elements in an array equal to k in O(n) time using extra space
3.In a bst to every element add sum of elements greater than it.

Interview Question – 1.you are given an array of length k and it have numbers from 0 to n (where k>>>n) in O(k) time and no extra space find occurrences of each element in O(k) time only

2. You are given row and column wise sorted matrix you have to find and delete an element such that it is still sorted in O(n) time

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Accepted Offer

Positive Experience

Difficult Interview

## Intern Interview (Positive Experience; Difficult Interview)

I applied through an employee referral and the process took a day - interviewed at Amazon.com in October 2013.

Interview Details 4 rounds
1. jam
2. technical
3.technical
4. managers round

Interview Question – casual question on behavioural aspects   Answer Question

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No Offer

Neutral Experience

## Intern Interview (Neutral Experience)

Interviewed at Amazon.com

Interview Details i had a telephonic interview which basically included question related to unix operating system some on java and a few on sql...

Interview Question – questions related to unix   Answer Question

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No Offer

Neutral Experience

## Intern Interview (Neutral Experience)

Interviewed at Amazon.com

Interview Details first round- 25 questions in 1:30hrs including 2 coding ques hosted by interviewstreet
second round- telephonic interview in which there was 3 coding ques we were supposed to dictate the code for the given questions.
third round- telephonic interview same as the second round only the ques were bit tough.

Interview Question – i made it till 2nd round, the 3 coding ques were-
1- find if the given BT is BST
2- replace every element of a BT with the sum of its inorder successors
3- every element in an array occurs twice except 1, find the number

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Accepted Offer

Neutral Experience

Difficult Interview

## Software Development Engineer Intern Interview (Neutral Experience; Difficult Interview)

I applied through college or university and the process took 2 days - interviewed at Amazon.com in March 2012.

Interview Details Well it initially starts with a telephonic call followed by 4-5 onsite rounds of interviews.

Interview Question – There wasn't any question of very high difficulty   Answer Question

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Accepted Offer

Positive Experience

Difficult Interview

## Intern Interview (Positive Experience; Difficult Interview)

I applied online and the process took 1 week - interviewed at Amazon.com.

Interview Details 3 phone screens

Negotiation Details – they gave me what I expected

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No Offer

Negative Experience

Average Interview

## Intern Interview (Negative Experience; Average Interview)

I applied through college or university and the process took 2 days - interviewed at Amazon.com in September 2012.

Interview Details On-campus interviews for the post of intern at Amazon India.
Started with a combined technical/aptitude online test. Followed by a paper-coding round where the selected students were supposed to code two algorithms on paper.
Selected students were interviewed by the recruiters. Some of the recruiters were quite unprofessional and themselves lacked knowledge regarding some basic algorithm questions. I personally know some students who suffered because they submitted an optimal solution and suffered because the recruiter failed to understand it. That's what happens in paper-coding.

Interview Question – Zig-zag traversal in a BST. I know it's a standard question but I wasn't aware of it and couldn't come up with a good enough answer in the interview round.   View Answer

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No Offer

Positive Experience

Average Interview

## Software Development Engineer Intern Interview (Positive Experience; Average Interview)

I applied through college or university and the process took a day - interviewed at Amazon.com in September 2012.

Interview Details One written test - 20 MCQ's on C, OS, Aptitude, LR, DBMS

Then three rounds of interview. All questions were from Tress or LinkedList.

Final interview round was a face to face.

Interview Question – What is the most appropiate DS to implement a T9 dictionary   View Answers (2)

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Accepted Offer

Positive Experience

Average Interview

## Software Development Engineer Intern (India) Interview (Positive Experience; Average Interview)

I applied through an employee referral and the process took 2+ weeks - interviewed at Amazon.com in May 2012.

Interview Details I was contacted by their recruiter and there was one offsite written test . And based on its performance there was a telephonic interview . Overall process went almost 20 days .

Interview Questions

• Given a linked list , swap alternate nodes of linked list .
For eq: 1 2 3 4 will become 2 1 4 3
and 1 2 3 4 5 6 will become 2 1 4 3 6 5 .
• Given N petrol pumps in a circular road, distance b/w adjacent petrol pumps and amount of petrol with vehicle capacity . Find a petrol pump where we should start so that we can cover entire road .   View Answer

Negotiation Details – We

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