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Facebook Interview Guide (2022)

Average salary in the US

SDE (E3): 186K SDE (E4): 267K Sr. SDE (E5): 385K

Interview Process​

Here is what to expect in a Facebook interview for software engineers:

  • Recruiter Pre-screen (20-30 mins) - Initial screening based on resume. Questions related to your professional experience, noteworthy projects, and accomplishments. No coding.
  • Technical Phone Interview (45-60 mins) – You will solve a coding question using an online editor. Your interviewer might ask you a follow-up question or add constraints to the current problem. Common topics include data structures, algorithms, and time/space complexity.
  • Onsite Loop (4-5 interviews) - Coding, design, and behavioral questions. ➡ Ninja (coding - 2 interviews) – 1-2 coding questions solved on a whiteboard in 45 mins. ➡ Pirate (design – 2 interviews) – Collaborative discussion with the interviewer. Drawing on a whiteboard to solve a system design question. Junior engineers don't get any design interviews. ➡ Jedi (behavioral) Questions about your motivation, people interactions, challenges, and work ethic.
  • Lunch - It's not an interview. The interviewer will show you around and have lunch with you.

Interview Tips​

1) Data Structures - Practice data structures like Heaps, HashTable, Tree, LinkedList, Stack, Queue, and Graph. 2) Algorithm - Practice recursion, Merge-Sort, Quick-Sort, Breadth-first search, Depth-first search, Divide and Conquer, and Dynamic Programming 3) Explain your thought process - Extremely important. Practice describing your solution and design decisions clearly and concisely. 4) Collaborate – Don't forget to discuss, present multiple solutions, and take hints from the interviewer.

Top FB System Design Questions​

Design Facebook Newsfeed Design Facebook Messenger Design Instagram Design Facebook Status Search Design Nearby Friends

Top recent Facebook tagged Coding Questions on LeetCode​

Right View of a Binary Tree (easy) Merge 'K' Sorted Lists (medium) Binary Search Tee Iterator (medium) Sum Root to Leaf Nodes (medium) Merge Intervals (medium) Diameter of a Binary Tree (easy) Sliding Window Median (hard) Kth Smallest Element in a Sorted Matrix (medium) Partition Equal Subset Sum (medium) Alien Dictionary (hard)

Refernece​

1) Grokking the System Design Interview: https://lnkd.in/g4Wii9r7 2) Grokking the Coding Interview: https://lnkd.in/gkjFsTxa 3) FB Interview Guide: https://www.metacareers.com/life/preparing-for-your-software-engineering-interview-at-facebook/