I applied through an employee referral. The process took 2 months. I interviewed at Meta (London, England) in Nov 2014
Interview
Facebook employee referred me : 1 telephonic round + 4 onsite (1 Cultural fit + 1 Design + 2 Coding). The interview process was very smooth and all the interviewers were very friendly. Most of the questions in the coding round were on algorithm fundamentals. Also they expect clean coding with proper testing. The design round is more like the discussion you would have with your teammate suggesting pros and cons of each method.
Interview questions [1]
Question 1
Clean code, test cases, scalable design, high level design...
Got a referral through a friend who worked at Meta, which sped up the entire process. After a casual initial chat, I went through a technical interview where I faced a DSA question about validating palindromes. The interviewer was friendly but rigorous. During prep, I had spent time with the coding challenges on PracHub, and it was funny to see a similar palindrome question pop up. Overall, I received an offer, but ultimately decided to decline it after careful consideration.
Interview questions [1]
Question 1
Given a string s, return true if it can be a palindrome after deleting at most one character (Valid Palindrome II).
Recruiter call was pretty standard, first round was 2 Meta tagged LC mediums in 45 minutes. On-site was 2 coding sessions of 2 LC mediums, a system design interview and a behavioral interview with an engineering manager.
Interview questions [1]
Question 1
How do you answer if someone asks how long a deliverable or project will take?
The entire process usually takes 3–8 weeks, depending on scheduling and the specific role. Coding interviews heavily emphasize common DSA topics such as arrays, strings, trees, graphs, BFS/DFS, heaps, hash maps, and dynamic programming. System design becomes increasingly important for E4+ positions.
Interview questions [1]
Question 1
Given an array of integers and a target value, return the indices of two numbers that add up to the target
