Applied through a referral.

Was contacted by a recruiter and then did a phone screen with a senior data scientist.

Got asked about:

• LeetCode hard problems
• My PhD projects
• Some statistics, such as distributions and Bayesian formula type of questions (actual math).

Didn't make it to the final onsite.

I answered all questions in 57 minutes. To my surprise, in the last 3 minutes, I was asked to compute a conditional probability using a Bayesian question (provided false positive, false negative, etc.) that needed me to put some numbers into the formula and solve it in just a couple of minutes.

Most companies allow their applicants to ask some questions in the last 5 minutes, though.

Past projects

LeetCode (hard)

Statistics

ML