Had an HR phone call that was mostly basic questions about previous experience, and why I feel I would be a good fit at Facebook. At the end of the call, we set up an on-site technical interview. Had to postpone it a while, but they were very helpful with rescheduling whenever was convenient for me. The technical interview went well, getting a tour of the facility before sitting down with an engineer. The interview lasted around an hour. I was asked a question about checking for palindromes, and a question about graph traversal. Ran into some trouble with the graph traversal, which I eventually described to the interviewer correctly, but didn't have enough time to write it on the whiteboard. I think that's the reason I was told to get more experience and reapply in a few months.

The technical round hit me with a classic array manipulation problem: moving zeroes to the end without disrupting the order of non-zero elements. As I tackled it, I felt a wave of familiarity wash over me; I had just practiced a similar challenge on PracHub. The rest of the interview followed a straightforward path, with some easy behavioral questions sprinkled in. Overall, it felt very easy, but I wasn’t quite the right fit for what they needed, so I didn’t receive an offer.