I applied online. The process took 3 days. I interviewed at Optiver (Shanghai, Shanghai) in Nov 2021
Interview
Group working on several mathematical problems, each 2-3 hours;
Market making games with together 8 people;
Coding competition on mock market making, in which you have to compete with others' strategy to win for the most.
Interview questions [1]
Question 1
BQ:
1. What's five traits you think make a good trader?
2. What's five traits that others will describe you?
3. What's five traits that you think you should improve?
4. What's your advantage over other competitors?
Market Making:
Find where your decision is inconsistent during the market making games.
First you send your CV and then you get different "challenges". One for sequences, one for probability and one for coding. All of them are quite hard, especially the probability one.
Interview questions [1]
Question 1
Roll one hundred dices, remove all possible groups of 1,2,3,4,5,6. Expected amount of dices left.
OA, phone, 3 interviews, each was a fun game that required risk taking and dealing with expectation. stay level headed and think about many cases. communicate clearly with your interviewer and explain everything.
a sequence of cognitive brainteasers requiring speed and accuracy, First round / online assessments consists of game-like rounds . Make sure to not hesitate in video rounds, as they are testing your confidence too.