I applied online. I interviewed at Optiver (Sydney) in Mar 2025
Interview
3rd round technical interview was very challenging. Asked 5 questions on fermi estimation with 2 different traders where for each set of 5 questions the spread you give on the estimation has to be correct, and then the cumulative fraction of the spread has to add up to 2.0. My interviewers were a little bit dismissive and didn't seem like they wanted to be there.
Other Quantitative Trader Interview Reviews for Optiver
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.
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