Jane Street·Quantitative Researcher

Jane Street Quantitative Researcher interview experience

No offer

Hard

Positive

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

My interview journey dragged on for about a month end to end, and it was built like a sequence: multiple online rounds, then a one-day assessment center.

Every step felt friendly in tone, but the underlying work was still relentlessly puzzle-driven, with probability and brainteasers threaded through the rounds.

I remember the early interviews as collaborative problem-solving rather than a strict Q&A. The vibe was that I’d work through games and discussions with the interviewer, trying to keep momentum as the questions evolved. When I got to the in-person day, it was structured like a full superday—lots of rounds in the office, and the pace was intense enough that it felt like you had to perform consistently or risk not finishing the

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