I applied online. I interviewed at Optiver (Midtown New York) in July 2025
Interview
OA was games, sequences, and probability. The games were weird. The sequences were hard and not like online practice. The probability questions started out easy and then got a lot harder.
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.