I applied and the first thing they sent was a coding test on HackerRank. The time limit was 48 hours, and I had to complete 3 questions in a language of my choosing. I found the questions way too difficult.
Interview questions [1]
Question 1
The last and hardest question was marked on a scale, you had to write a program that filled in missing data from a dataset. The closer your guesses were to the right answer, the better mark you got.