1. Online quizz on math 2. Online interview on math/brainteasers/machine learning Summary of the experience: Negative experience, many interviews, lot of emails with the recruiters and the interviewer lacked empathy. I have a PhD in Electrical Engineering, but the questions focused more on elementary computations. With my background, I was anticipating a deep dive into complex, technical topics. The overall environment during the interview felt less than congenial.The lack of empathy from the interviewer, to be frank, left me feeling uncomfortable rather than challenged.