Quantitative Researcher (Intern) applicants have rated the interview process at Jane Street with 3.4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 74% positive. To compare, the company-average is 63.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Quantitative Researcher (Intern) roles take an average of 18 days to get hired, when considering 19 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 Quantitative Researcher (Intern) according to 19 Glassdoor interviews include:
Phone interview: 35%
Presentation: 18%
Skills test: 18%
IQ intelligence test: 12%
Personality test: 6%
One on one interview: 6%
Other: 6%
Here are the most commonly searched roles for interview reports -
I applied online. The process took 2 weeks. I interviewed at Jane Street (New York, NY) in Oct 2020
Interview
The recruiter reached out through email and set up a phone interview quickly. The phone interview was with two current quant researchers and was about 30 minutes long. Consisted of probability questions.
Interview questions [1]
Question 1
A mouse can move one room over within three adjacent rooms in a row each day. You can only check one room. What is the expected number of days it will take to find the mouse? Then, same question but rooms are in a triangle, meaning the mouse can go to either of the two other rooms it is not in.
I applied online. I interviewed at Jane Street (London, England) in Jan 2026
Interview
I did a Zoom interview.
The interveiwer was kind and asked me some probability questions.
I stumbled a bit but answered correctly in the end. However, I didn't get an offer so maybe they want someone who answers straight away.
Interview questions [1]
Question 1
Startegy of changing a line.
Is this a realistic strategy? What would change in the real world?
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.
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.
Interview questions [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.