I applied online. The process took 3 weeks. I interviewed at Meta in Dec 2015
Interview
A phone interview. A recruiter was very nice. At first he introduced himself. And he asked me please introduce yourself. And then he gave me a question. It seemed very simple but I should optimize time complexity of the question. I tried to use divide and conquer. I thought I can solve it by using while statement because I don't want to use recursion. It worked well but time complexity still depended on length of output. I regret that I should use recursion. Although I didn't get offer, it was good experience. Additionally, an interview process of Facebook was really fast and clear. I like it.
Interview questions [1]
Question 1
The question was related to recursion and binary search.
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.