I applied online via Google Careers in August and heard back in September that I was not being considered. I was reached out to in February by a recruiter about the role who scheduled a screening call with me. Asked normal screening questions with a couple of problem-solving questions at the end. Got an email about 2 days later that I had made it to virtual interviews. I had about 3 virtual interviews scheduled for 3 or 4 days later. Two 30 min interviews and one 45 min interview including a business case. After that, my recruiter reached out a couple of times for additional information about my background. About 2 weeks later I got a job offer. The whole process took about 3.5 weeks. I have seen comments on here about recruiters being cold but I honestly had an absolutely amazing experience! Google does a very good job at providing a general understanding of what to expect but also Youtube is a great source as well as Glassdoor. I studied a bunch of traditional interview questions and prepared for the problem / behavioral questions. One thing I can say is you honestly cannot predict what kind of questions they are going to ask you. I would say the best thing you can do is just have a plan for your process for problem-solving. I thought many of my answers were probably "wrong" but I used a specific process to problem solve and talked through my thinking and why I said what I said.