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Facebook Software Engineer Interview Questions

Updated 25 Nov, 2014
Updated 25 Nov, 2014
388 Interview Reviews

Interview Experience

Interview Experience

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Software Engineer Interview

Anonymous Interview Candidate
Anonymous Interview Candidate
Interview Details

Online Application, submitted the resume only. Contacted next day for a phone interview.
After the first interview was schedule for a second phone interview. Finally went for the onsite interview in Menlo Park where there was 3 interview in the same day.

Interview Questions
  • Print a binary tree level per level.
        1
     2 3
    4 5 6 7

    Would print
    1
    23
    4567
      View Answer
No Offer

Other Interview Reviews for Facebook

  1. 6 people found this helpful  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through an employee referral – interviewed at Facebook.

    Interview Details

    Started with a quick phone call from a recruiter at facebook. He was very nice and polite but not technical. Questions were related to past experience but I felt as though it was more just a quick fit check before moving to a more technical interview.

    Next step was a call with a Senior Engineer. The phone call was about one hour in which the you will be quized about elementary data structures and algs.

    Interview Questions
    • Create an iterator to traverse a binary tree. When the next function is called on the binary tree return the value at the next node as if you are doing an inorder traversal of the tree. Restrictions: Nodes do not have pointers to their parent node and you can't use recursion.   View Answer
    No Offer
  2.  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through a recruiter. The process took 3 weeksinterviewed at Facebook in March 2014.

    Interview Details

    Phone call interview with engineer. Interviewer was very nice, talked about my previous work and his previous work. Then got into coding questions.

    Interview Questions
    • Given a list of k sublists containing n sorted integers, generate output as one sorted list.
      Comment on complexities.
        View Answers (3)
    No Offer
    Positive Experience
    Difficult Interview
  3.  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through an employee referral. The process took 2 weeksinterviewed at Facebook in December 2013.

    Interview Details

    employee referral, contacted by HR, phone interview, normal interview question, no reply for 2 weeks, contacted HR. employee referral, contacted by HR, phone interview, normal interview question, no reply for 2 weeks, contacted HR.

    Interview Questions
    No Offer
    Average Interview
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  5. 1 person found this helpful  

    Software Engineer Interview

    Anonymous Interview Candidate in Vancouver, BC
    Anonymous Interview Candidate in Vancouver, BC
    Application Details

    I applied through college or university. The process took 5 daysinterviewed at Facebook in March 2012.

    Interview Details

    Get contacted by HR after drop resume in a campus event.
    Attended the on campus interview.

    The process is very fast paced. And the interviewer is very friendly.

    He provided hints and gave follow-up discussion about your solution.

    Interview Questions
    No Offer
    Positive Experience
    Average Interview
  6. 47 people found this helpful  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Interview Details

    phone interview starting with introducing yourself followed by two code questions.
    The first coding question is very standard coding question and the second one is
    a little more related to facebook's certain functionality

    Accepted Offer
  7. 6 people found this helpful  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Interview Details

    The interview is quite intense, including several rounds of coding, design, and culture interviews. Some interviewers can be annoying. One person showed great disbelief when I mistook one of their great technologies by something else. Another guy was pounding me about why I wanted to be an engineer. And in one coding interview, the guy was looking at his phone while I was doing whiteboard coding. He apparently has less knowledge about the interview subject, but he did manage to find a small bug and failed me. I am glad that they did --- how can I work with such assholes? Compared to other places I went, Facebook has the highest concentration of mediocre quality, high ego engineers. An unpleasant place for engineers!

    Interview Questions
    • Design questions probably, as they seem to want you to match some preset answer in their brain.   Answer Question
    No Offer
    Negative Experience
    Difficult Interview
  8. 1 person found this helpful  

    Software Engineer, Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Interview Details

    The first interview was at my University. It was your typical 45 minute face-to-face whiteboard coding style interview. During the first five minutes, my interviewer introduced himself and asked me questions about myself. Be prepared to talk about yourself and your resume. The next 35 minutes were spent entirely on 1 question. After arriving at a naive solution, I fined-tuned and optimized my code. The last 5 minutes were reserved for any questions I had.

    I passed the first interview, and went on to the second interview. The flew me down to HQ. This interview went horribly. The question was more difficult than the first interview, and my interviewer's accent made him difficult to understand. After the interview, I toured Facebook's campus and had lunch, etc.

    Interview Questions
    • First interview question: dutch flag problem. Given three color objects arranged randomly in an array, arrange them such that each object is together and their collective color groups are in the correct order.   Answer Question
    No Offer
  9.  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through college or university. The process took a dayinterviewed at Facebook.

    Interview Details

    Implement an asked simple function in an empty paper. Each type of variables (ex. int, double) and using conditional / iterative statement had to be chosen carefully to avoid a single mistake.
    Then typical personal questions came after the code interview.

    Interview Questions
    No Offer
  10.  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied in-person. The process took 6 weeksinterviewed at Facebook.

    Interview Details

    4 rounds onsite interviews. Not very difficult, need bug free. 45 mins each round, 5 mins break between them. People there are smart and nice. some resume questions, 1 to 2 coding problems each round

    Interview Questions
    • 4 rounds onsite interviews. Not very difficult, need bug free. 45 mins each round, 5 mins break between them. People there are smart and nice. some resume questions, 1 to 2 coding problems each round   Answer Question
    No Offer
    Positive Experience
    Average Interview

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