MockQuestions

Facebook Software Engineer Mock Interview

To help you prepare for a Software Engineer interview at Facebook, here are 26 interview questions and answer examples.

Get More Information About Our Facebook Interview Questions

Question 1 of 26

Facebook is very proud of our products and the people who develop them. In your opinion, what distinguishes a great software engineer from an average one?

When an interviewer asks this type of question, they seek to understand what your perception of excellence in this role is. When answering the question, you should align your response with the job requirements, as defined in the job posting. You can also incorporate your past performance to demonstrate that you are aware of what excellence is and strive to achieve it.

Next Question

Facebook Software Engineer Interview Questions & Answers

  • Behavioral

    1. Facebook is very proud of our products and the people who develop them. In your opinion, what distinguishes a great software engineer from an average one?

  • Behavioral

    2. Here at Facebook, we value work life balance and initiative. What personal software development projects have you worked on outside of work?

  • Operational

    3. If hired by Facebook, can you estimate what portion of your day will involve coding and other activities you will perform when not coding?

  • Operational

    4. Many Facebook Software Engineers prefer to program in Java. Can you describe how you would implement linear search in JavaScript?

  • Operational

    5. How would you implement Dijkstra's Shortest Path using a programming language with which you are familiar?

  • Operational

    6. How do you go about organizing CSS files, and why do you prefer this approach?

  • Operational

    7. Walk me through the steps to build a single page application with multiple sections using the programming framework in which you typically work.

  • Operational

    8. What process do you use to test and find bugs in an application you've developed?

  • Operational

    9. Which do you prefer - a micro-service approach or a monolithic app?

  • Operational

    10. How do you go about addressing errors in your code?

  • Operational

    11. Describe the process you use to create a program, from requirements definition to delivery.

  • Operational

    12. Walk me through your process for designing scalable applications.

  • Situational

    13. How would you accelerate the response time of a website you created for us here at Facebook?

  • Situational

    14. Can you describe a tough software development problem you encountered in your last job and discuss how you solved it?

  • Technical

    15. Can you define black box testing and white box testing and discuss the differences between them?

  • Technical

    16. What are the differences between an array and a stack?

  • Technical

    17. Facebook web developers are incorporating HTML5 in their most recent websites. Can you describe the functions of web workers in HTML5?

  • Technical

    18. What are the differences between blocking and non-blocking calls in the context of Node.js?

  • Technical

    19. What are some of the programming languages you are familiar with, and which ones do you prefer?

  • Technical

    20. Please describe a stack and the two operations it performs.

  • Technical

    21. Please describe responsive design and the difference between fixed and fluid layouts.

  • Technical

    22. Here at Facebook, we have embraced Agile methodology. How experienced are you with the Agile software development process?

  • Technical

    23. Can you describe Facebook's software development life cycle, as you understand it?

  • Technical

    24. What do you look for or check when reviewing another team member's code?

  • Technical Engineer

    25. What do you feel are the critical principles of good software engineering?

  • Technical Engineer

    26. How would you go about explaining Facebook's cloud computing environment to someone who doesn't have a technical background?