I did a maths test online first for 45 minutes, which had increasing difficulty problems and was fairly interesting, and used some linear algebra and probability in the questions, then interview after that
one interview followed by coding challenge followed by a superday, the interview tests intuition, lots of questions, mostly medium ones , was asked to give estimate before calculating for each question
Questions d'entretien [1]
Question 1
expected product of heads and tails when flipping a coin 100 times
J'ai passé un entretien chez DRW (Londres, Angleterre)
Entretien
Phone screen followed by onsite interview in office. This process happened over a space of 3 weeks. Questions were related to probability and market making games. There was also a coding question.
The interview process was three stages as shown below. OA -> phone screen -> final round. The online assessment you could take any time. The phone screen had technical questions.