Two rounds of phone call interviews. Each one takes 45 minutes. The questions are easy. The interview is coding-based. Each interviewer gives a problem to solve. And guide you to improve the algorithm.
I applied through an employee referral. I interviewed at Google in Feb 2020
Interview
Online coding round followed by 2 telephonic interviews. I was called back for a 3rd telephonic interview. Received a voice call from the recruiter followed by an email (regarding the decision). One of the best interviewers I have ever had.
The first step is a coding test where they have you answer 2 questions in any language of your choice in a 2-3 hour timed amount. They also have another questionnaire you fill out about your background and experience.
Interview questions [1]
Question 1
All the past google questions can be found online, but they come up with a new one every year.