Jane Street·Quantitative Trader

Jane Street Quantitative Trader interview experience

No offer

Hard

Positive

London, EnglandPosted Sep 2025 · Candidate report, summarized by Dataford

I went through three online rounds and they were tightly centered on math and coding.

Two of the interviews were probability-focused, with questions that leaned on probability reasoning alongside more general background questions. The third round was a coding interview with a software developer, and I was allowed to use any programming language.

The overall difficulty felt solidly difficult rather than casual, mostly because the probability rounds required real computation and clear logic, not just intuition. In the coding round, the emphasis was on implementing solutions while staying clear about how I was thinking through the problem constraints.

I didn’t end up with an

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