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Facebook Software Engineer Interview Questions

Updated 13 Dec, 2014
Updated 13 Dec, 2014
401 Interview Reviews

Interview Experience

Interview Experience

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Getting an Interview

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1 person found this helpful  

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. 56 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. 2 people found this helpful  

    Software Engineer Interview

    Anonymous Interview Candidate in Menlo Park, CA (US)
    Anonymous Interview Candidate in Menlo Park, CA (US)
    Application Details

    I applied through college or university – interviewed at Facebook.

    Interview Details

    Process:
    This is for undergrad full-time software candidates in USA. Submitted resume at college career fair. Got email about on-campus interviews. At this stage, there are 3 possible outcomes: onsite invitation, a phone interview for an additional chance, or reject. I was invited to onsite interview.

    Onsite was a "University Day" that included three interviews (not four like they said in the email) before lunch and then a tour, new-hire panel, etc after lunch.

    All interviews were 45-mins length.

    Interviews themselves:
    On-campus interview: 3 coding questions. I don't remember signing any NDA at this point so, the questions were k-Nearest Points to Origin, finding a substring, and 3-sum.

    On-site interview: 3 interviews, 45 mins each. 1st interview: 2 coding questions. 2nd interview: behavioral questions (about team conflict, etc.) and a coding question. 3rd interview: 2 coding questions. Coding questions were easy and required *no knowledge* of special algorithms or data structures (such as graphs, DP, trees, etc). Recursion and strings were common.

    I did not get an offer from Facebook; however, I received offers from other companies. The interview questions themselves were considerably easier at Facebook than those asked at Google, LinkedIn, MS, Amazon, etc.

    Since the questions are not very hard, my guess is the decision is based upon fit and most importantly how *quickly* you were able to arrive at your solution and how *perfect* your code was. Make sure you focus and are confident.

    Advice: practice the easier questions and practice coding them. Also, looking at some of the other experiences on Glassdoor, it looks like a majority of the questions are re-used.

    Interview Questions
    No Offer
    Positive Experience
    Easy Interview
  8.  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through an employee referral. The process took 4+ weeksinterviewed at Facebook.

    Interview Details

    I got the opportunity through internal referral.

    I passed an technical phone screening and was invited to an on-site. I had 5 interviews in total. Two coding, two system design, one with manager (on PhD research + a quick coding exercise).

    The technical questions were not too difficult, but I was unprepared for the system design problems. One of the interviewers kept walking around in the room and was really distracting and annoying. I couldn't focus on solving the problem and didn't do well in that session.

    The interviewing schedule was not the best. I was scheduled to have lunch at 2pm PST, but considering I'm from a couple time zones east of PST, I was already way too hungry to have lunch at that time. Perhaps a low blood sugar level also contributed to my impaired thinking abilities.

    Interview Questions
    • Signed NDA. Distributed system design problems were out of my expectation as I do not claim any experience in that area nor was I interviewing with any positions related to that area.   Answer Question
    No Offer
    Negative Experience
    Average Interview
  9.  

    Software Engineer Interview

    Anonymous Interview Candidate
    Anonymous Interview Candidate
    Application Details

    I applied through an employee referral – interviewed at Facebook.

    Interview Details

    I went through the first two Skype interviews. In each interview I was asked to introduce myself, then the interviewer gave me two problems to solve. The first one was easy. The second one was a little bit harder. Each interview lasted around 50 minutes.

    Interview Questions
    No Offer
    Average Interview
  10. 2 people found this helpful  

    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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