Jane Street·Quantitative Analyst

Jane Street Quantitative Analyst interview experience

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United StatesPosted Nov 2025 · Candidate report, summarized by Dataford

After the recruiter contact, my process moved quickly into early interviews that were mostly probability and game-style questions.

In the first round I spoke with a trader over Zoom, they introduced themselves, and asked me to share a bit about myself before jumping into a probability question. I also got a brainteaser that drew on basic probability and expectation.

Across the following rounds, the format stayed similar: shorter math-and-reasoning sessions with follow-ups, and problems that were progressively harder. I worked through questions that were clearly meant to test game-theory thinking and on-the-spot problem solving, and I had to solve everything live with no real behavioral distractions. At times I could ask

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