Envié una solicitud electrónica. El proceso duró 2 semanas. Acudí a una entrevista en Jane Street (Londres, Inglaterra) en oct 2014
Entrevista
2 telephone interviews within the space of a week both with very friendly interviewers who asked a series of maths question, mainly probability-based. The interviewers gave helpful hints when I was stuck and seemed to be looking for someone who picks up new concepts quickly and has a strategic mind rather than someone who immediately finds the solutions to all the questions. We chatted a bit about what their daily job entailed.
Preguntas de entrevista [1]
Pregunta 1
What digit does 3 to the 33 end in?
How many 6 digit numbers are there that include all the digits from 1 to 6 inclusive?
What is the mean of all of these numbers?
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
Preguntas de entrevista [1]
Pregunta 1
Expected value, if throwing a dice, 2 dices and 3 dices with option to reroll.
Envié una solicitud electrónica. Acudí a una entrevista en Jane Street en nov 2022
Entrevista
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
Preguntas de entrevista [1]
Pregunta 1
they describe the rules of a game and ask if you want to play it based on your expected earnings