Had employee referral. A few days later a recruiter reached out and scheduled 30min screen call. During the screen call the recruiter went over the basics and what to expect from the interview process (very informative and helpful), and recruiter asked about my past experience and why I was interested in Facebook. Then was told I would be proceeding to a 1st round interview (45min video skills interview w/ UX researcher). Took several weeks to schedule due to conflicting schedules and the recruiter being slow. Did 1st round interview, which I thought went reasonably well, but a few days later was informed that I would not be moving forward to the 2nd round interview.

Phone screen followed by virtual interview with hiring manager followed by full loop (several interviews on a single day). The recruiter was very helpful in targeting the right role. The hiring manager was quite rude and asked bad questions that could not really have helped assess qualifications for position.