I interviewed remotely for the Boston office so I imagine my experience will be different than most. I had a phone screen with the recruiter, followed by an 'answer as many questions as possible in 15 minutes' exam. Having apparently passed that, I was asked to do so again via webcam over skype to probably make sure I wasn't cheating. I believe usually the assessment is taken on site the second time. After that, I had a phone screen with the hiring manager, followed by a video interview with the hiring manager and his boss. Very straightforward and simple process