Jane Street·Quantitative Trader

Jane Street Quantitative Trader interview experience

No offer

Hard

Positive

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

My first round started more traditionally: a CV-focused conversation where they asked about my background and a project from my resume.

After that, I got pulled straight into statistics and probability-style questions, and while the topics sounded “medium,” explaining my thought process out loud made everything feel much harder than it looked on paper.

The overall vibe was still workable, but the math content leaned toward combinatorial and game-y question formats rather than finance. Even when interviewers were friendly, the problems demanded real reasoning, and they wanted you to stay engaged with the structure instead of trying to guess the deeper angle too early.

I didn’t make it past that stage, and I never reached an

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