Ho presentato la mia candidatura tramite l'università. La procedura ha richiesto un giorno. Ho sostenuto un colloquio presso Jane Street (Cambridge, MA) nel mese di gen 2016
Colloquio
I interviewed through my school's career website, and I had an on-campus interview. I met with a current employee, he asked for my name and to confirm basic information. We dove right into the probability/math questions. The interview lasted for precisely 20 minutes. He asked a slew of math questions in increasing order of difficulty. The interviewer gives mild hints if you need it, but overall he was happy to watch me struggle.
Domande di colloquio [1]
Domanda 1
Imagine I flip 100 coins in a sequence, and you need to guess the sequence. You are allowed to ask one yes/no question. What do you ask to maximize the probability of guessing the sequence?
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.
Domande di colloquio [1]
Domanda 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?
Ho sostenuto un colloquio presso Jane Street (Hong Kong)
Colloquio
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
Ho presentato la mia candidatura online. La procedura ha richiesto 4 settimane. Ho sostenuto un colloquio presso Jane Street (New York, NY) nel mese di apr 2026
Colloquio
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