Three rounds: 1) phone screen - 30 minutes with recruiter 2) technical interview - 1 hour video call & shared screen with engineering manager 3) On-site - 4 hours, six interviews, approx. 45 minutes each, 4 of which consisted of technical challenges

I applied Rubicon website and the whole interviews/hiring process took only 2 weeks(HR+Phone screen + 3.5hr onsite). I was provided with update after each interview on time. This is the best interview experience in my careen. HR is really a nice and kind lady. She always deal with things quickly and correctly.