J'ai postulé via un établissement d'enseignement supérieur ou universitaire. Le processus a pris 2 semaines. J'ai passé un entretien chez Jane Street (New York, NY) en janv. 2015
Entretien
Lots of quantitative questions. Some were mental and quick in nature, others were more involved and allowed for pen-and-paper.
There were three total interviews: the first was all mental math and took about 15 minutes. The second and third were longer and involved more difficult math questions. On some you were expected to estimate the answer, not to get the exact answer.
Questions d'entretien [1]
Question 1
You have a rubiks cube and you paint the outside red before breaking it up into 27 smaller cubes. You pick one of the smaller cubes randomly and roll it. What is the probability that all of the sides facing upwards are unpainted?
I had a phone screening call from a recruiter, they asked some standard probability questions, bayes rule, and expected value about dices. Overall experience was pretty good. Make sure you prepare your probability
Questions d'entretien [1]
Question 1
Expected value, if throwing a dice, 2 dices and 3 dices with option to reroll.
J'ai postulé en ligne. J'ai passé un entretien chez Jane Street en nov. 2022
Entretien
Very smooth. Around 30mins first round 1hr for the second round. First round consisted of easier probability based questions. Second round was similar but harder and longer questions. The interview process if approached in a calm composed manner should be easier to analyse
multiple phone interviews and a full-day Zoom interview. Interviews got longer and longer over time, but every person was very kind and helpful with hints when I got stuck. The questions get harder as the rounds progress and generally don't have a closed form answer in the later rounds
Questions d'entretien [1]
Question 1
they describe the rules of a game and ask if you want to play it based on your expected earnings