Applied online for position. Recruiter reached out to me and arranged a phone screen. Phone screen asks 2-3 coding questions. My performance was borderline on the first phone screen, so had to undergo a second phone screen where I performed much better and was invited to an onsite interview. Onsite interview was scheduled 3 weeks after passing the phone screens. It took place at Facebook's Menlo Park HQ. The onsite interview consisted of 5 rounds plus a lunch at one of the on campus cafeterias. The 5 rounds are made up of 2 coding rounds, 1 system design round, and 2 behavioral rounds. Each round was 45 minutes with 1 or 2 interviewers. Coding questions ranged from easy to medium Leetcode level... didn't encounter anything really difficult. I was on campus from 10 AM to 2:30 PM. A week after the onsite interview I heard from the recruiter that the reviews were positive and we moved towards an offer.

Full loop typical of "regular" Software engineer role 45 mins one easy one medium leet code style question just for screening then on to the rest of the interview loop