online test with 3 questions and a time limit of 30 minutes on probabilities like card games and dice, followed by a phone interview a few weeks after the online test
Interview questions [1]
Question 1
starting with 13 red and blue cards labelled from 1 to 13, remove 7 blue cards at random, what is the probabilities of the card drawn is blue given the number is 3
Two or three probability/statistics brain teasers/problems that you have to solve. Topics include Markov Chains, EV, decision/game theory, branching processes, gambler's ruin, best decisions, optimisation. Interview with an actual quant.
CV submission, followed by online assessment (fairly easy 10 questions), then first round zoom interview. One interviewer, one hour interview. 2 problem solving questions asked with multiple follow ups for each one.
Interview questions [1]
Question 1
Design an algorithm for when to replace a car at a car rental company
Was asked a general mathematical problem solving question - no personal details or anything else was discussed, was overall relatively easy and I imagine a fair amount of support would be offered if struggling.
Jane Street interviews FAQs
Summer Intern applicants have rated the interview process at Jane Street with 3.8 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 64% positive. To compare, the company-average is 63.8% positive. This is according to Glassdoor user ratings.
Candidates applying for Summer Intern roles take an average of 15 days to get hired, when considering 16 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 Summer Intern according to 16 Glassdoor interviews include:
Skills test: 31%
One on one interview: 23%
Phone interview: 23%
IQ intelligence test: 15%
Other: 8%
Here are the most commonly searched roles for interview reports -