The process involved an online test, a HR call, and then 3 interviews for the final round that mostly consisted of technical questions relating to probability and math. The interviews were very challenging and made your brain work.
Interview questions [1]
Question 1
Statistics, probability, game theory, and other topics
Extremely hard process, lots of preparation beforehand. Enjoyed the process though, very much challenging. There are many internet platforms that allow you to prepare if interested. Believe in your self when doing it, it can get hard at some points.
Interview questions [1]
Question 1
Test process: 5 parts (Numerical, attitude, probability games, neurological games, sequences).
I applied online. I interviewed at Optiver (Amsterdam)
Interview
Online Assessment -> HR Interview -> Two Technical Interview -> Assessment Centre It was relatively difficult but was interesting, I am currently at the second technical interview stage now. Interviewers are nice but they will ask a lot of extension questions to keep you on your feet.
5 tests, took around 5 hours. quite difficult but some personality ones / games. behaviour interview which was nice, they showed a genuine interest in your experiences and not just a set of predefined questions