The interview process was fairly straightforward, though extremely slow. A single phone interview before being brought onsite. Apparently I was brought onsite and skipped a phone interview. The interview at Facebook's University Ave site was a bit odd. Employees are crammed in like sardines. More packed than most startups. It was very loud. I went through two sets of in-person interviews (a total of five or six people). The interviewers had extremely good / difficult interview questions. Nearly all the people I spoke with seemed extremely disinterested by the interview process. It was very difficult to figure out what working there would be like.