J'ai postulé en ligne. J'ai passé un entretien chez Jane Street
Entretien
Very friendly interviewer and relatively easy questions. Quite organised in their interview process, with clear guidelines as to how to approach the interview. Focus is to explain the rationale and not just get the correct answer.
Questions d'entretien [1]
Question 1
Probability of raining on sunday or saturday based on individual probabilities. Give upper and lower bounds on the probability of the union.
J'ai passé un entretien chez Jane Street en janv. 2026
Entretien
Technical interview round 1 and 2. Two math problems/brain teasers. Round 1 is easy, but round 2 becomes more challenging. Problems are well designed with multiple follow ups. Interviewer super friendly and nice. Great people and nice culture.
J'ai postulé en ligne. J'ai passé un entretien chez Jane Street en nov. 2025
Entretien
There were five rounds during the onsite, two in the morning, and three after lunch.
The rounds are as follows (not in order):
1. coding (language of your choice)
2. Data analysis
3. Behavioral / presented my research
4. brain teaser
5. more brain teaser
The day was super long and I was super tired by the final round.
Questions d'entretien [1]
Question 1
One question during the behavioral round: if you have 10 min to present on one topic (can be anything) to your coworkers, what would it be?
