facebook is an unprofessional company to interview with. The first phone interviewer only wanted some insider information regarding my company (which I didn't give to him). The second interviewer could not get the interviewing tool working! He wasted 1/2 hour of my time before calling and telling me he would like to reschedule. So I patiently rescheduled with HR for the next day. The 2nd interviewer now calls 20 minutes late. Is fairly rude and capricious. Says that he is in a hurry. Did not explain his problem correctly. When I explained my solution, quickly tacked on some additional requirements and then said my solution did not work. The interview only lasted about 15 minutes. Said that he worked on consistency problems at facebook. Everybody knows how horrible the facebook newsfeed consistency is. Total time wasted with these people = 4hours (over two weeks, not including recruiter time). Compensation offered for my time; none. Conclusion: run as fast as you can from this company.