first get an OA, then received an email to schedule a phone call with HR, then an technical interview, the final interview is about code design. I got rejected after the HR phone call.
several parts, all requiring a very sharp mind and quick reasoning, especially you have to be able to estimate probability really well in seconds, the psychological test is pretty standard stuff
I applied online. The process took 2 weeks. I interviewed at Optiver in Aug 2023
Interview
long OA, five rounds (80 in 8, games, sequences, etc.). scheduled first round interview with trader on optinomicon, betting game - given odds and price of contracts, take positions on different players