Google gets as many as 75,000 resumes a week. Obviously, it is highly unlikely that Google HR has enough time and staff to actually look at every resume; after all they are a search company. In me experience, being recommended for a position by a Google employee (a "Googler") is critical to getting a person in HR to look at your resume. After submitting several resumes online, I was recommended by a Googler. I was contacted by Google HR within 24 hours.
J'ai passé un entretien chez Google (San Francisco, CA)
Entretien
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.
J'ai passé un entretien chez Google (Kirkland, WA)
Entretien
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.