I applied through an employee referral. The process took 2 months. I interviewed at Google in Apr 2015
Interview
Very slow process overall, quite dis-organized. A phone interview with a recruiter followed by another phone interview with a PM in Mountain View USA. He seemed jaded and disinterested. Lots of focus on estimates on the spot, a skill that doesn't really come into affect in any day to day life of a PM. He was late to the call too... They didn't think I had the right 'fit' for there organisation.
Interview questions [1]
Question 1
If Nest had to launch an automatically garage door opener what would the market size be in the USA? Would it be worth it? How would you launch the first generation product.
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.