Amazon.com SOFTWARE ENGINEER (SR DEVELOPER) Interview Questions

Updated Jun 5, 2015
28 Interview Reviews

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28 Candidate Interview Reviews Back to all Interviews

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  1.  

    No Offer
    Positive Experience
    Average Interview

    Application

    I applied through a recruiter. The process took 2 weeksinterviewed at Amazon.com in April 2015.

    Interview

    I dad a round of technical whiteboarding session wherein i was given a program and asked questions related to it. the questions were average ones. the recruiter was helpful throughout the process.

  2.  

    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied through college or university. The process took a weekinterviewed at Amazon.com in March 2015.

    Interview

    The interview is technical, no behavior questions. The interview takes 45 minutes long. First, he ask about some of my project in the resume. And after that we coded collabedit. Interviewer is patient. Try to guide me of the second question step by step. I think it is a good experience.

    Interview Questions

    • 1.what happened when u typed the url till the browser shows everything

      Write a program that will print all numbers between -50 and 50.
       When the number is divisible by 6 print X when the number is
       divisible by 7 print Z, otherwise print the number itself.
       
      Answer Question
    • Given a set of actors and a list of movies that they have both appeared in,
      find the fewest number of movies required to relate Kevin Bacon with a given
      actor.

      Sample data:

      Apollo 13: Kevin Bacon, Tom Hankes, Bill Paxton
      Titanic: Bill Paxton, Leonardo DiCaprio, Kate Winslet
      Catch me if you can: Leonardo DiCaprio, Tom Hankes, Christopher Walken
       
      1 Answer
  3.  

    Senior Software Development Engineer Interview

    Anonymous Employee in Washington, DC
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied online. The process took 2 daysinterviewed at Amazon.com (Washington, DC) in February 2015.

    Interview

    Apply online, got an email invitation for phone interview 2 days after. Purely technical interview without anything related to what on the resume. The interview started by a short and high level info of what the team is doing with a chance for some quick questions. All of this was about 5-7 minutes. The remaining time (of one hour interview) was all technical.

    Interview Questions

    • 1. Giving an array of integers from 1 to n-1 in random order where n is the size of the array. Find duplicates in the array and identify its runtime.   Answer Question
    • 2. What is a hashtable? How does it work? What is is the runtime for retrieving an item. In what situation the this runtime is lager than ideal case?   Answer Question
    • 3. Graph question which utilizes BFS to determine if one can fly from a to b, given a graph of cities that has flight to.   Answer Question
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  5.  

    No Offer
    Negative Experience
    Difficult Interview

    Application

    I applied through a recruiter. The process took a weekinterviewed at Amazon.com.

    Interview

    I was contacted via Linkedin by an Amazon recruiter about a recruiting/interview event they were holding the next week in a nearby city. After a phone screen with the recruiter I was invited to come to the interview event. The actual interview was a series of four, one-hour interviews with different developers and managers.

    I was required to sign a non-disclosure agreement prior to the interview so I can't reveal any specific questions. I was provided preparation materials by the recruiter and the interviews did not stray too far from what I was expecting based on those materials.

    I was asked to write code with a paper & pen. Make sure you COMPLETELY understand the problem before you start writing any code. Ask questions about the expected input, desired output and how to indicate any errors or exceptional conditions. A test-driven design approach is useful (i.e. think about your test cases first). Write down the answers to your clarifying questions on the paper. If the question seems too easy they are probably hiding a trap for you somewhere. Looking back on it now I wonder if I would have been better off spending the entire time picking apart the problem instead of actually coding anything.

    Brush up on time and space complexities of various data structures & algorithms: you will for sure be asked about them. bigocheatsheet.com is a good one-stop reference for this information if, like me, you haven't thought about big-O notation in 20 years. Be prepared to explain why you chose to use a certain data structure even if it's intuitively obvious that the structure you chose is the best one.

    It probably helps to fawn over the company and it's leader a little. When asked what drove me to interview with them my inquisitor did not seem too happy with my answer that they had come to me instead of the other way around.

    Every big company has some sort of kool-aid that they want you to drink: at Amazon it's the 14 leadership principles. When asked a behavioral question they are looking for you to pivot to these principles in your answer so it helps to know them.

    In my case all but one of the interviewers were furiously typing away any time I was speaking, which I found a tad unnerving. Three of my four interviewers had been with Amazon less than a year which I found totally bizarre; it also made it difficult to get answers to some of my cultural-fit questions as they just didn't have sufficient background to answer. One of the interviewers mentioned that he had been with Amazon for 8 months & already had more seniority than 40% of the company.

    I asked every interviewer about work/life balance; their answers all sounded suspiciously similar and the answers didn't exactly square with the research I had done. Obviously I can't say that I was lied to but it was a hugh red flag for me.

    Interview Questions

    • I signed a non-disclosure agreement & can not reveal specific questions.   Answer Question
  6.  

    No Offer
    Difficult Interview

    Application

    I applied online. The process took a weekinterviewed at Amazon.com.

    Interview

    I have applied directly to amazon website and got an email from HR. My first round was telephonic round and they asked for computer access during interview for programming. Interviewer gave me 2 programs to make in 60 minutes,

    Interview Questions

    • Both programs were very difficult. They were related to data structure (tree and linked list). Asked complexities and search algorithms   Answer Question
  7. Helpful (1)  

    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied online. The process took 5 weeksinterviewed at Amazon.com in June 2014.

    Interview

    There's usually very little information from the recruiters on interview process or the groups that is taking the interview. Generally this info can be obtained from the interviewers.
    There were 2 phone interviews, both last for about an hour. Most questions were generic about algorithms and data structures etc. Nothing specific on any language or OS.
    After a long 3 week wait there was an invitation for in house interview. That too took 2 weeks to schedule, but no big deal.
    The in house interview lasted for about 4 or so hours. There's some new wave of interviewing called behavioral interviews. I don't understand it, but I seriously doubt its working OR the interviews know what to ask and how to interpret. Of course I'm sure they are trained, but not everybody learns what the non-techie expects techies to learn.

    Interview Questions

    • Design kind of questions are usually difficult questions. Mainly because they are hypothetical situations and not necessarily straight forward design. Of course the interviewer is always ready to help, but they have already prepared for it. We have to think and come up with some answer is next 5-15 minutes, to even start a discussion. That part is usually difficult.   Answer Question
  8. Helpful (1)  

    Software Development Engineer III/Senior Engineer Interview

    Anonymous Interview Candidate in Seattle, WA
    Accepted Offer
    Positive Experience
    Average Interview

    Application

    I applied through a recruiter. The process took 2+ monthsinterviewed at Amazon.com (Seattle, WA).

    Interview

    I have initiated communicated with recruiter via linkedIn.
    On next day the first phone interview has been scheduled.
    At total, during next 2 weeks had 4 phone interviews.
    After last one i have been invited to fly to Seattle for one day on site interview.
    The overall experience is very positive.
    The recruiters works very fast, waited no more for 2 days to get result from phone interview.
    The onsite interview I did on Friday and next Tue afternoon I got a job offer.

    Interview Questions

    • The technical questions was very interesting but nothing not expected. Cannot share more information, since has been asked not to publish it.   Answer Question
  9.  

    Senior Software Development Engineer Interview

    Anonymous Employee in Seattle, WA
    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied through a recruiter. The process took 3+ weeksinterviewed at Amazon.com (Seattle, WA) in May 2014.

    Interview

    A recruiter reached out to me and persuaded me to pursue the opportunity.

    First, I had a homework assignment in which I had to put aside 2 hours. The assignment consisted of three programming exercises to be completed in any language you choose.

    I received a second phone call inviting me to Seattle. Amazon paid for everything. I had to plan on being in Seattle for 2 days.

    The interview process lasted an entire afternoon and consisted on a different person every hour on the top of the hour. Each time I had to present a solution on the whiteboard.

    Interview Questions

    • Pretend that an end user is providing you with input. In this case, it's a math equation, such as (3+2)*4-1. Parse the input and display the answer.   1 Answer
  10. Helpful (2)  

    Software Development Engineer III/Senior Engineer Interview

    Anonymous Interview Candidate in Palo Alto, CA
    Accepted Offer
    Positive Experience
    Difficult Interview

    Application

    I applied through other source. The process took 2+ weeksinterviewed at Amazon.com (Palo Alto, CA) in March 2014.

    Interview

    2 phone interviews followed by one written exam and onsite interview. Most of the questions are around algorithm and data structures. Look for trees and hash tables and distributed designs

  11. Helpful (3)  

    No Offer
    Neutral Experience
    Difficult Interview

    Application

    I applied through other source. The process took 3 weeksinterviewed at Amazon.com (Cambridge, MA) in February 2014.

    Interview

    Reached out to Amazon Recruiter via LinkedIn. The Recruiter responded very quickly. After a Phone screen by the recruiter, got scheduled for a local Hiring-event in Cambridge.

    The interview was a typical 4-hour long event. 5 different sets of people, each chatting for about 45mins. I did 4 of the 5 okay...took a little longer to come up with the answer they were looking for in one case. Oh well...

    Interview Questions

    • Write a program to generate a "Unique Ticket" for each request. The number of requests could be quite large - up to a million per second.   Answer Question

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