J'ai postulé en ligne. J'ai passé un entretien chez Jane Street (New York, NY) en févr. 2026
Entretien
1. OA using Excel
2. Math & Logic Interview: 3 questions in total. Combinatorics questions about a palindrome. Dice roll problem: 3 players, win if you rolled a larger number, if you all rolled the same numbers, start all over again -> what's the probability? Then, if guaranteed to roll a 4, what's your new probability of winning?
3. Coding Interview: Given a list of trades, find the top 3 trades without using a helper function. What if the trades contain long and short sell?
4. Final day: system design
Questions d'entretien [1]
Question 1
Dice roll problem: 3 players, win if you rolled a larger number, if you all rolled the same numbers, start all over again -> what's the probability? Then, if guaranteed to roll a 4, what's your new probability of winning?
First the Simple CSV problems, need to check the files they sent to you and use the data in the file to calculate, not very hard, need to be careful since it mignt be a messy if you don't group the data in it. Then zoom
Questions d'entretien [1]
Question 1
Dice Questions about the probablity and strategies
J'ai passé un entretien chez Jane Street (Londres, Angleterre)
Entretien
A screening test and then two online zoom interviews initially. First is maths combinatorics brainteasers (counting problems) with one speed-distance-time problem, and then the second interview is coding focused on your problem solving so language is irrelevant
I was only invited to the first round of interviews after the online assessment. The first round of interviews, they asked you lots of brain teaser and probability sort of questions
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