I've had 3 FB interviews for 3 different roles in the last few years that were all software related in different locations. Each and every time, there is an experience so far left field that makes me think, "hmm, that was awful". I shrug it off but it's common enough now where I think it's just representative of the Facebook culture that you hear whispers about at Facebook Seattle. 1. First Interview - Interviewers don't smile. At all. As if the Zuck was watching them and would fire them if they did. Figured they were just stressed from a release so I shrugged it off. 2. Second Interview - A few smilers. But one of my coding rounds had an interviewer who comes in in his classic hoodie, doesn't speak English, writes the prompt on the board and scrolls on his phone for the rest of the interview, generally ignoring me. 3. Third Interview - Interviewers are actually nicer this time. But unfortunately my lunch buddy spent the entire time complaining about the culture: the work-life balance, the up-and-out culture, and the general toxicity. I have never had that happen at any other onsite and probably never will. I'll probably keep interviewing for practice, but I think I've written Facebook off as an employer and suggest you think about that yourself.