Ho presentato la mia candidatura online. La procedura ha richiesto una settimana. Ho sostenuto un colloquio presso Jane Street (Londra, Inghilterra) nel mese di nov 2015
Colloquio
Quite tricky but it didnt take too long all the questions are on here so make sure that you do plenty of practice with these questions. Also they want you to be really accurate and fast with quick mental maths and without using a calculator or a pen or a piece of paper. You can cheat for the telephone interviews but its pointless because you would just get caught out in the real interviews. a a a a a
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