I applied online and was contacted by their recruiter.

I completed a one-hour phone screen where we discussed my past projects and basic machine learning questions, such as L1/L2 regularization and their geometric interpretation.

I answered all their questions, but they did not show the courtesy of following up with me at all. I never received any rejection or acceptance email.

I am aware that some Chinese applicants were hired as interns easily, without even going through their hiring process.

This startup is heavily governed by Chinese individuals in a mafia-like style, so I would advise individuals from other nations to stay away.

Basic ML questions, such as the difference between L1/L2 regularization and their geometric interpretations, etc.