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 oct. 2017
Entretien
There was a campus posting and the first round is strictly as what the other folks described. When I passed the first round, I got a VBA assignment. Then there is the super-day where you will meet the three groups of people for interviews (two in the morning and one in the afternoon). The problem is two regarding process (e.g. how you will make sure of the settlement and how you will design a process that the trade will flow smoothly) and one regarding coding (still the largest mover or longest day when a stock price goes up).
J'ai passé un entretien chez Jane Street (Londres, Angleterre)
Entretien
2 round online interviews. first round is leetcode, 2nd round is online 1to1 zoom interview, asked me brain teaser questions only, did not discuss cv. i f up on quite easy questions. shame on me.
J'ai postulé via un recruteur. J'ai passé un entretien chez Jane Street (Londres, Angleterre) en févr. 2026
Entretien
Applied through a referral. The first step was an initial HackerRank-style assessment that was pretty straightforward and mostly Excel/data-analysis type work. I had to look up values, calculate metrics like profit, and answer practical business/math questions.
The second round was with a TDOE and was much more intense. It focused on live problem solving, analytical reasoning, and probability/math concepts. I would recommend being comfortable with expected value, expected wait times, conditional probability, basic optimization, and explaining tradeoffs clearly. The interviewer cared a lot about how I broke down the problem, not just the final answer.
Questions d'entretien [1]
Question 1
One question involved expected wait times for a train that runs every 10 minutes, compared with walking. The train took 5 minutes and walking took 10 minutes. The interviewer kept adding new factors and asked whether the expected wait time or overall travel time would increase or decrease, and why. It was very interactive.
J'ai postulé via un recruteur. J'ai passé un entretien chez Jane Street en déc. 2025
Entretien
Only did the mathematical problem solving interview. No advanced technical knowledge required. Focused mainly on creativity within arithmetic and statistics questions. Focus more on showing your thought process than just solving the question since the interviewer is happy to help if needed.
Questions d'entretien [1]
Question 1
A train arrives at the station every 20 minutes. If you take 5 minutes to run and 10 minutes to walk, what is the expected wait time at the station?