Was contacted by recruiter in LinkedIn and started interview process. He was transparent, prompt and supporting during the process. He updated me every on every step and details and he was prompt: getting feedback after 3 hours from phone interview speaks for itself. Then I had on-site interview, three interviewer liked my answers, system design really like my design and thinking, but apparently one of the interviewer didn't like my coding style and I was asked to come for one more interview just to check the coding part again. So tip: use whiteboard better, apparently working and clean code is not enough it needs to look clean on board as well :) Overall process was positive. But, I had a feeling that some interviewers are really un-experienced and focus on wrong things. Also big difference from other companies: they expect you to be really fast (read - you need to know answer upfront). If you don't know answer upfront, but come up with solution after thinking, trying, making misatkes and optimizing - it doesn't count, at least it didn't in my case. Try to solve my problem below (if you don't know answer already), implement, test it on board in 15-20 minutes. Advice for FB: train your interviewers to focus on skills, NOT memorized skills. I have offer from big companies/competitors, so I will just go with them.

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.