I applied through an employee referral. The process took 3 months. I interviewed at Google (Mountain View, CA) in Sept 2017
Interview
The interview started with a phone screen, then a second phone screen (they said they hadn't been able to evaluate a particular aspect in the first phone screen). Then I was brought in for an in-person interview
Interview questions [1]
Question 1
Many questions of the type "design a product that does X". They wanted me to walk through the process of brainstorming customer needs, deciding which features to prioritize, putting together an elevator pitch for the product, and then assessing who to work with to get buy in and internal validation. Most of the questions were along those lines, with emphasis on one area or another depending on the interviewer
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.