A recruiter found my resume online and emailed me asking if I would be interested in opportunities with Facebook. We then spoke on the phone and she scheduled my first technical interview. Throughout the process the HR person was very friendly and helpful. The technical interviews were conducted using Skype and collabedit.com. They consisted mostly of algorithms and data structures questions, and a few questions about projects I had mentioned on my resume. The first two interviewers were very friendly and positive, and I felt the interviews went very well, having answered all the questions correctly. The last interview was conducted by a grumpy engineer with a thick accent who was running 15 minutes late and sounded like he didn't want to be there. Unfortunately this put me off quite a bit, and I did not perform very well in that interview, 3 days later I heard back from HR that they wouldn't be proceeding with on-site interviews in Palo Alto.

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.