Jane Street Research Analyst Interview Questions

The questions to prepare for a Jane Street Research Analyst interview. Questions from real interview reports rank first. Updated weekly.

Prioritizing Conflicting High-Stakes Work

Easy

Tests prioritization under pressure, stakeholder management, and ownership when multiple urgent requests compete for limited time.

Stakeholder ManagementOwnershipDealing With Ambiguity

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Compute the expected waiting time to see two consecutive heads when flipping a fair coin.

Estimating Mean From Small Skewed Samples

Medium

Tests robust estimation methods for skewed distributions with limited data.

DistributionsSamplingBias

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Conditional Probability With Partial Deck Info

Hard

Tests conditional probability reasoning under incomplete information and careful case handling.

SamplingConditional Probability

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Tests game-theoretic equilibrium reasoning under incomplete information.

Market Making on Sum-Dependent Card Game

Hard

Tests market-making intuition and pricing under multi-agent payoff uncertainty.

Pricing Strategymarket making

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Valuing a Contract on Unknown Trading Strategy

Hard

Tests valuation under latent strategy risk and uncertainty about competitor performance.

ValuationBusiness AcumenCompetitive Analysis

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Cleaning and Aligning Noisy Time Series in Pandas

Medium

Tests practical data-wrangling skills for irregular time series with missing data.

missing valuesData WranglingTime Series

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