I uploaded my CV in their system and got contacted by a recruiter. In the initial phone screen we discussed my interests and strength and the recruiter got back to me about a group that sounded like a good fit. Since I was local I did the first technical interview directly on site. It took about 45min. My interviewer was not directly associated with the group that I talked about with the recruiter. But he did take my background into account when asking questions. It went pretty well and a couple of days later, they invited me back for a full day of interviews. The full day interviews were mostly general coding questions and one architecture session. Although this time, I was talking directly to the people from the group were I saw a fit with my background and interests, unfortunately the interviewers did not ask any related questions. They kept strictly to (I guess) Facebook approved coding questions. Those were very low level and I did only perform moderately well I think. The architecture session went much better and was almost related to my background. After the full day of interviews it was pretty clear that this was not a good fit. They confirmed that a couple of days later and the interview process stopped there.