J'ai postulé via un établissement d'enseignement supérieur ou universitaire. Le processus a pris 1 semaine. J'ai passé un entretien chez Jane Street en mars 2014
Entretien
Sent my resume through my college's recruiting website. Few days later we scheduled a phone interview. Phone interview takes place. We jump straight into the technical questions. They first asked me to not use pen and paper and to let them know if I had already heard a question. It was honestly pretty hard to do anything without the pen and paper so I asked them to let me write my thoughts down and they allowed me to. Couldn't fully solve their last question so they said I should work it through and email them my solution. They never got back to me, understandably. It was my first time interviewing and I sucked at it.
Questions d'entretien [1]
Question 1
They were all math puzzles. All the questions were probability problems except for the last one which was a general math puzzle.
The process was structured and intellectually challenging. It typically involves an initial recruiter screen, followed by probability, mental math, expected value, and game-style problem-solving interviews. Interviewers focus more on reasoning, communication, and adapting to feedback than memorized answers.
Questions d'entretien [1]
Question 1
You have two opaque boxes in front of you. At each turn, you may choose one of two actions:
Place: put one coin into one of the two boxes, chosen uniformly at random.
Take: choose one of the two boxes uniformly at random, take all the coins inside, and empty that box.
You play for exactly 100 turns. Your goal is to maximize the expected number of coins you collect.
What is your optimal strategy?
J'ai passé un entretien chez Jane Street (Hong Kong)
Entretien
Several phone calls to go to the final round. The phone calls consists of mathematical, probabilistic brain teasers which was not that hard for a mathematics major. Final round was to harsh for me, strong mentality is required
J'ai postulé en ligne. Le processus a pris 4 semaines. J'ai passé un entretien chez Jane Street (New York, NY) en avr. 2026
Entretien
Lots of expectation/probability questions. Make sure to study game-theory type question that involves expectations. Specific concepts in stochastic processes don't seem that important. The first two were relatively easy. Just make sure to ask a question if there is any uncertainty