I applied through a recruiter. The process took 4 weeks. I interviewed at G-Research (Belgrade) in Dec 2018
Interview
First round consists of a test (main areas they test - Statistics, Probability, Programming, Finance). Max points are 25, and in order to pass is approximately 17. Second round is over HackerRank.
Interview questions [1]
Question 1
You have m random numbers taken uniformly in the range between 0 and n. What is the best estimation of n?