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.
Other Summer Intern interview reviews for Jane Street
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
