Quant Research Intern applicants have rated the interview process at Jane Street with 3.6 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 89% positive. To compare, the company-average is 63.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Quant Research Intern roles take an average of 3 days to get hired, when considering 9 user submitted interviews for this role. To compare, the hiring process at Jane Street overall takes an average of 17 days.
Common stages of the interview process at Jane Street as a Quant Research Intern according to 9 Glassdoor interviews include:
Phone interview: 29%
Skills test: 24%
One on one interview: 18%
Other: 12%
Presentation: 6%
Background check: 6%
IQ intelligence test: 6%
Here are the most commonly searched roles for interview reports -
I applied online. I interviewed at Jane Street (London, England) in Oct 2020
Interview
CV screening, then you have to pass 3 phone calls. On each of them, you are asked different algorithmic/strategy problems (quite a lot of probability included). The first one very basic (up to 30 min normally). The second one more technical around 40-60 min. The third is the hardest with one huge problem to solve in around an hour. If you pass you are invited for the on-site stage. There you have 3 main interviews almost in a row (5-10min break). The first one is introductory to trading environment problems and terminology. Second and third are same as a third call or harder also in trading terminology. They might require another interview after that (20-30 min break given) similar to the previous 2.
Interview questions [1]
Question 1
On the second call, I was asked this. You roll a 100-side dice and get paid the number it shows. However, you can roll again for the price of 1 pound (you get paid once only on the last roll). What is your strategy to maximize profit?
I applied online. I interviewed at Jane Street in Mar 2026
Interview
Give one or two game theoretical problems to optimize my profit or minimize loss. As the round proceeds, the difficulties get harder. Interviewer gives you few clues when you are lost. Need to keep track on how you are approaching.
Very good interview process, interviewers are polite and engaged, and happy to help you get unstuck during the problem solving process. Problems are tough but reasonable, very interesting to do
I applied online. I interviewed at Jane Street (New York, NY) in Oct 2025
Interview
Round 1: Basic probability questions. Just EV stuff, find strats that maximize EV
Round 2: Same as Round 2, questions are a bit more challenging
Round 3: Harder than R2, this time expect some game theory too (knowing what the Nash equilibrium is, etc). The question will be more open-ended and challenging, so make sure you clarify what exactly the interviewer wants. The interviewer will work with you and guide you in the right direction.
I was rejected after Round 3 even though I solved the question with hints, but Round 4 is in-person and they make you fill out an immigration form if you're outside the US so make sure you can enter the states for R4.
Interview questions [1]
Question 1
If you a roll a fair sided die twice, what is the expected value of the max of the two rolls?