I applied online at Google.com/jobs after some Google reps came to my school for an information session. I was also referred for the position, which really helps get your resume to the top. I was contacted 2 weeks later for in-person interviews at my school's career center. There were 2 interviews -- one about my background and leadership experiences in college, the other was very behavioral based. After those interviews, I was contacted via email about 2 weeks later, inviting me out for interviews at the corporate headquarters in Mountain View, CA. There were also two back-to-back interviews - but they were both behavioral and brain teaser focused. I stayed in contact with the recruiter and the Googler who referred me and 4 weeks later, I received a phone call offering me the job!

Got reached out to by a recruiter. Passed the screening call last week. rd1 interview is coming up this week (11 days after). Apparently only 2 rds of interviews this process. Though the 2nd interview consists of 2 45min interviews in one.