Questions were based on resume skills relevant to the role and experience was asked. It was a role that demanded ML and Data Science requirements and interviewer was a professor so he asked if I had any previous experience research work

I had a pretty informal interview process, I reached out to professors via email that I was interested in working for and from there it was relatively easy to talk to them about their research and potential open positions

Informal. Discussion of research tends to be as technical and in depth as you want it to be. More focused on if you're a good fit personality and interest-wise. Overall, pretty fun as far as interviews go.