Some interviewers are good and actually care about your learning and others are not. I had to fill out a survey. Then I had to pick some phone interview dates. The phone interview involved coding on a google doc.
I applied online. The process took 4 weeks. I interviewed at Google (Mountain View, CA) in Oct 2018
Interview
Was sent an online coding test with a practice problem and a personality quiz. The person managing the applicants was nice enough to contact me to add some information.
It is not really a difficult interview. Doing some online coding problems and learning to code on the whiteboard will help a lot.
I applied online on google careers web site. After several (3-4) weeks I had two interviews: about my research and technical interview about programming and algorithms. Interviewer contacted thought google hangouts.