The process took 4 weeks. I interviewed at Meta in Oct 2011
Interview
First, a group of Facebook employees came to my campus to conduct on campus interview. There were 2 rounds of on campus interview - you had to pass the first round in order to get to the second. After the 2 rounds, you should be notified whether or not you receive the job. However, they asked me to complete a third and final phone interview. It took several weeks to schedule, but finally I had the phone interview.
In the first interviews, I was only asked coding questions. The third was more behavioral, but we ended with a coding question.
Interview questions [4]
Question 1
Given a tree, print the values contained at each level on the same line.
So if you had the tree with root A, and children B and C, you would print:
A
B C
Find the min and max in an array. Now do it in less than 2n comparisons. (they were looking for the solution that finds both max and min in about 3/2 n comparisons).
Compute the square root of a number down to a certain precision.
ie sqrt(num, precision) returns a number that is in-between sqrt(num) - precision and sqrt(num) + precision.
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
