I applied through a recruiter. The process took 4 weeks. I interviewed at Booking.com (Amsterdam) in May 2016
Interview
Interview was rather long, with two different teams of two interviewers each. Was supposed to hand in an assessment, however, it was sent to me 3 days later than it should have and the only response was an apology. The interviewers were not that polite, and there was significant waiting time + them being unable to find the interview rooms.