I applied through a recruiter. The process took 1 week. I interviewed at Google in Jan 2022
Interview
A phone screen where the interviewer listened to my previous experience and then asked me a regression question. She was talking on mute for a bit until I messaged her that I couldn't hear her and then when she unmuted herself she didn't repeat herself. So I might have missed an important bit of info lol.
It was all good, the interviewer was very nice. Technical questions were a bit challenging but overall it was good. The hiring manager was looking for some hands on experience
Back to back interview.
[1]. Mainly ask ML concepts, e.g., how to develop a classifer for youtube video; they will also ask some statistical concepts
[2] Coding for both python and sql
Applied at PhD level so I had two back to back technical interviews. One all stats concepts and the other talking over a hypothetical experiment design and walking through my thought process.