I applied through a recruiter. The process took 1 week. I interviewed at Meta (Palo Alto, CA) in Jun 2011
Interview
A Facebook HR recruiter contacts me directly through Facebook saying if I am interested in interview. The process consists of a phone interview and an onsite interview. Phone interview is asking my background and experience, while onsite interview is 30 minutes intense real coding question on white board. Two questions were given in the onsite interview. 1st one is reversing a linked list, and the 2nd one is writing a regular expression parser. However, since it only allowed 30 minutes to write actual codes for both questions, I wasn't able to finish them. (I finished 1 and 2nd one is half way) I then never got the reply from them.
Write the actual code to parse a regular expression including "*", which stands for 0 or more characters, "+", which stands for 1 or more characters, and ".", which stands for 1 exact character.
Took about a month altogether, which felt longer given the intensity of the process. Kicked off with a technical screening, followed by two rigorous coding interviews. The DSA question on binary tree vertical order traversal hit me hard at first, but then I recognized the prompt instantly — I had just worked through something similar on PracHub. The final round was focused on system design, and while I ended up receiving an offer, I ultimately declined it. Overall, a challenging experience that definitely sharpened my skills.
1 leetcode med, 1 leetcode hard. make sure you know your DSA and leetcode questions. I wasn't able to get an offer bc i didnt complete the second question. Got a reply 2 days later saying they would move on
Overall, the process took a little over two weeks, which felt a bit longer than I anticipated. After a quick screening, I went through two technical rounds focusing on coding and DSA concepts. One of the questions was a classic palindrome check; mid-way through, I realized it was something I had practiced on PracHub just days earlier. The final step was a casual behavioral interview. I was relieved to get an offer shortly after, which I happily accepted.
Interview questions [1]
Question 1
Given a string, determine if it is a valid palindrome considering only alphanumeric characters and ignoring case.