Consisted of an OA with 10 probability questions. pretty straightforward dice and coin flip problems for the most part. I think you get like 25 minutes or something to do it. Next was first round interview which was the same kind of probability questions but this time with a specific focus on casino games. Second round was market making questions, I would practice these as they as you a lot about logic, risk parameters, and how continuous versus stationary distributions change how you should bet.

Mix of behavioural and technical questions, with a focus on market making games. For example make a market on the sum of two dice rolls. Also some questions involving options theory.