Amazon.com Interview Questions

Updated Sep 17, 2014
Updated Sep 17, 2014
4,886 Interview Reviews

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  1.  

    Software Development Manager Interview

    Anonymous Interview Candidate  in  Bangalore
    Anonymous Interview Candidate in Bangalore
    Application Details

    I applied online. The process took 4+ weeks - interviewed at Amazon.com in March 2014.

    Interview Details

    2 telephonic round and then 5 onsite round.
    telephonic round focus on architecture and people management skills.
    same for on site rounds....

    there is not HR round kind of thing...
    on site round also has a bar raiser round...

    Interview Questions
    • they only focus on two things, generic architecture level discussion, how would you design a specific scalable system. Mostly question will pose an ongoing problem in the group and you need to brain storm solution with them. Nothing that difficult , it is only that you need to apply common sense.

      second thing they focus is your people management skills, again all question are really practical and if you try to give a bookish answer you will be caught..so if you do not really believe in your answer you will not be able to make it...for e.g. "you have an excellent super brillant team member in your team, better than all others but his behavior is bad, he does not talk properly if someone approaches him for help of solution, he literally insults them...what would you do"...
      Now reallt think about your answer...if you want to preach this guy..it will not work out..it is his nature...do you really want to throw him out of your team...ha ha you probably will not like to...because these kind of people bring 10X value to organization...what will you do...

      similarly there are many trap questions..if you try to be politically and inetrview wise correct you will not make it...
        Answer Question
    Reasons for Declining

    My compensation was almost same ... declined because of that...

    Declined Offer
    Neutral Experience
    Average Interview
  2.  

    Program Manager Interview

    Anonymous Interview Candidate  in  Chennai
    Anonymous Interview Candidate in Chennai
    Application Details

    I applied online. The process took a day - interviewed at Amazon.com.

    Interview Details

    Two rounds of Telephonic interviews and one on site interview. The on-site interview was conducted back to back with 5 senior managers.

    Interview Questions
    No Offer
    Positive Experience
    Difficult Interview
  3. 1 person found this helpful  

    Amazon Software Development Engineer In Test Interview

    Anonymous Interview Candidate  in  Bangalore
    Anonymous Interview Candidate in Bangalore
    Application Details

    I applied through an employee referral. The process took a day - interviewed at Amazon.com in March 2014.

    Interview Details

    the interview had 3 rounds 1 aptitude pretty easy
    next was the technical round which again had aptitude and questions about testing
    and last the hr round which we didnt have as we were sent off saying the interview was complete

    Interview Questions
    No Offer
    Neutral Experience
    Average Interview
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  5. 11 people found this helpful  

    Software Development Engineer Interview

    Anonymous Interview Candidate  in  Hyderābād
    Anonymous Interview Candidate in Hyderābād
    Application Details

    I applied through college or university. The process took a day - interviewed at Amazon.com in July 2013.

    Interview Details

    I am interviewed as part of on campus recruitment process.I am a student of NIT waranagl.
    this review therefore is in the context of on campus placement.
     There was an online aptitude test followed by technical interviews.
    There were four technical interviews .
    In the first technical interview I was asked to find the pivot element in a sorted and rotated array.
    O(n) solution is obvious and I gave him O(log n) solution ( binary search )and I was asked to code it.After writing the code,I was asked to check my code if it covers all the edge cases or not. I have tested it and it seemed to work for all the edge cases but the interviwer pointed out a case where my code fails and then I have corrected it.He also asked me to write the code for searching an element in the sorted rotated array using binary search.
    the second question is given a binary search tree ,replace each node with the sum of numbers greater than the number in the node.I gave him O(n) solution and he was satisfied with it.

    In the second round ,
    I was asked to design an application that sends a message to two friends if they come within two miles of each other.
    I gave him a solution indicating the data structures used to maintain the friend list and model of the solution .
    He pointed out the cons of the solution and I modified the data structure.Then there was long discussion where I gave him different solutions and He pointed out the cons of each solution and asked me to overcome it.Finally I arrived at a solution and the interviewer was satisfied with it.
    He also asked me a couple of puzzles and I answered them.

    I think the third round was the bar raiser
    I was asked two questions.

    The first question was :
    Given n jars each having a colour of some value.the value of the colour is from 0 to 100.
    when two jars (with colours say 'a' and 'b')are combined, the colour of the resulting solution is (a+b)%100.Also (a *b) amount of gas is released .Find a way to combine all the jars to form a single jar with minimum amount of gas release.(Only adjacent jars can be combined).
    The problem is similar to matrix chain multiplication- O(n^3)(Dynammic Programming)and after I gave him the solution I coded it.
    The second question was:
    A quadra tree is a tree where each node has atmost 4 child nodes.(similar to a binary tree which has atmost 2 child nodes).

    A monitor screen (black and white) is represented by a qudra tree in the following way:

    case 1:IF the entire screen is white then the value in the root node is white.
    similarly if the entire screen is black then the root stores black.
    case 2:If the screen is neigther completely black nor white then the screen is divided into 4 quadrents.
    and the node has 4 child nodes each representing one of the quadrants.( the screen is recursively divided into subscreens).

    Now given two screens represented by two quadra trees, return a quadra tree which represents the overlapping of the two screens.( assume when white and white overlaps results in white,black and white overlap results in black , black and black overlap results in black).
    I was asked to write the code for it.

    Round 4:

    Q1: Implement a stack which supports pop_min (return minimum element in the stack in O(1) ) along with push and pop operations.
    I gave him a couple of solutions and I was asked to code them.The he gave me a solution (maintain a linked list of minimums in the stack) and asked me to code it.

    Q2: Given a binary tree with fields- {pointer to left child,poiter to right child,next pointer}.
    Initially the next pointers are all NULL.
    Now fill all the next pointers in each node with pointer to the node which is immediately right to the node in the same level. The next pointer of rightmost node in a level shold be NULL.
    It can be done using level order traversal using a queue but the interviewer asked me to do it without using queue or any extra memmory and in O(n) time.
    Hint: The logic is to fill the next pointers in the (n+1) th level while trvelling in the n th level.
    I was asked to code it.

    PERSONAL INTERVIEW (HR)
    There was no HR interview although I was asked some questions like -Why do you want to join amazon, future plans ,
    tell me about yourself,your habits and interests and about why I didn't do an intern ..etc

    SUMMARY OF EXPERIENCES
    The amazon interview process is very cool.The main thing here is to stay focused since the whole process is time consuming. The interviewers were very friendly and they are not bothered about the formalities.So the experience was great.

    Interview Questions
    • this question is a bit difficult because of the limited time I was given to code it.
      Given a binary tree with fields- {pointer to left child,poiter to right child,next pointer}.
      Initially the next pointers are all NULL.
      Now fill all the next pointers in each node with pointer to the node which is immediately right to the node in the same level. The next pointer of rightmost node in a level shold be NULL.
      It can be done using level order traversal using a queue but the interviewer asked me to do it without using queue or any extra memmory and in O(n) time.
      Hint: The logic is to fill the next pointers in the (n+1) th level while trvelling in the n th level.
      I was asked to code it
        Answer Question
    Accepted Offer
    Positive Experience
    Difficult Interview
  6.  

    SDE2 Interview

    Anonymous Interview Candidate  in  Bangalore
    Anonymous Interview Candidate in Bangalore
    Application Details

    I applied online. The process took 2 weeks - interviewed at Amazon.com in September 2013.

    Interview Details

    Contacted on phone by HR. I had uploaded my resume around 5-6 month back. I went there next week. has four in person interviews. The process went very smoothly. I had to go again next week for the last round.

    Interview Questions
    • Given a string. Suppose all its characters can be jumbled up and all possible strings are arranged in an alphabetical order. Now given a number n, find the nth word in the ordered list of words.   Answer Question
    No Offer
    Positive Experience
    Difficult Interview
  7. 3 people found this helpful  

    Web Development Engineer II Interview

    Anonymous Interview Candidate  in  Bangalore
    Anonymous Interview Candidate in Bangalore
    Application Details

    I applied online. The process took 4 days - interviewed at Amazon.com.

    Interview Details

    This is my interview experience with Amazon, India . I reached on time , but they asked me to wait around 100 mins , and later HR called me in.

    F2F round :
    1. what is the current Java script version
    2. what are best practices for HTML/CSS/JS 3 . How do you improve web site performance
    4. What are new improvements in Java script
    5. What are the promises () and deferred ()
    6. Explain closures
    7. Which project do you like most , and why ? in your current organization
    8 . Few questions about web accessibility
    9 . How to make align div exactly center of web page 10. Questions on HTTP/HTTP's , http sessions , and what parameters browser will send and response parameters
    11. CSS questions , on selectors

    Coding Round :
    1. shuffle items in array
    2. Write a function to find power of numbers , example POW (2,2)

    Manager Round :
    1. Explain about your current project
    2. Questions on best practices
    3. How do you update yourself
    4. How do you make cross domain requests without JSONP

    Interview Questions
    • just prepare algorithms , there interview process is quite very easy but they focus on alternative solutions like alternative to AJAX etc ..   Answer Question
    Reasons for Declining

    relocation issues , and offered less than I expected .

    Declined Offer
    Neutral Experience
    Average Interview
  8.  

    Software Development Engineer Intern Interview

    Anonymous Interview Candidate  in  Bangalore
    Anonymous Interview Candidate in Bangalore
    Application Details

    I applied through college or university. 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 Questions
    • 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.
        View Answer
    No Offer
    Positive Experience
    Average Interview
  9. 1 person found this helpful  

    Seller Support Associate Interview

    Anonymous Interview Candidate  in  Bangalore
    Anonymous Interview Candidate in Bangalore
    Application Details

    I applied through a staffing agency. The process took a day - interviewed at Amazon.com in March 2014.

    Interview Details

    interview for Seller Support Associate- Started with HR round, quite easy. Gud Pay- just be sure about the Job Description and Prev Exps. next went for an OL test, Basic Psychometric tests, wants to see your analytical skills and stuff with no exact ans. Basic simple maths and charts.

    Interview Questions
    • Was very optimistic about it but Als! i was sent back.   Answer Question
    No Offer
    Positive Experience
    Difficult Interview
  10.  

    Seller Support Associate Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through a staffing agency. The process took a day - interviewed at Amazon.com.

    Interview Details

    4 rounds
    1- HR round
    2- online test
    3- vercent test
    4- ops round

    Interview Questions
    • vercent test can be a little difficult for freshers as all the tests conducted are time bound.
      with practise and speed any graduate with good communication and speed can get through!
        Answer Question
    No Offer
  11. 1 person found this helpful  

    Software Development Manager III(L6) Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

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

    Interview Details

    I was told by the HR that there will be two telephonic screening rounds and if shortlisted, face-to-face interview in their office (6 more rounds).

    Interview Questions
    • In the first telephonic screening round, I was asked to explain my background in brief. Then, I was told: Assume there are 100 million text files/novels. I need to design a text suggestion tool, based on the 100million novels, while the user is typing search text in Amazon website.   View Answer
    No Offer

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