I applied online. The process took 6 weeks. I interviewed at Google (Zürich, Zürich) in Jun 2014
Interview
11 interviews, none of them related to who you are but rather a series of pre-packaged exercises tailored to see how you perform at them. People who interviewed you were generally unaware of who you'd spoken to before (even from HR) and what they're looking for - in general a lot of them were more junior than myself and had no interest in any of the things I'd done to date or what the role description required, they were going by the generic title that they had.
Very self-driven, first of multiple rounds, where I had to take the initiative to arrive at the problem, constraints, approach, solutions, tradeoffs and reasoning behind it in a matter of 30 minutes.
You would have to do a hiring assessment first, then a recruiter screening follows. First round interview with the hiring manager. Majorly product sense and product improvement. The questions were not direct though.
Overall a lot of steps to the interview process. Talked to different people and had opportunities to ask questions. Many different stages which made it a lengthy process overall. Wasn't too bad.