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Updated weekly · Last refresh Oct 17

Robinhood Data Scientist Interview Questions

The questions to prepare for a Robinhood Data Scientist interview. Questions from real interview reports rank first. Updated daily.

50questions
~8htotal time
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1
SQL & Data ManipulationStart here. 10 questions · ~96 min
Fraud Detection from TransactionsMedium
Practice

Flag suspicious Robinhood transactions using account-level amount anomalies and hourly transaction velocity.

fraud detectionsql queriesCase WhenRobinhood
SQL with Window FunctionsMedium
Practice

Rank users by monthly traded value within account type using Robinhood-style trade data.

Window FunctionsData Manipulationfinancial dataRobinhood
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2
Machine Learning4 questions · ~38 min
Logistic Regression and TreesHard

Compare logistic regression with tree-based models and design validation and weighting strategies for covariate imbalance.

data preprocessingmodel choicemodel validationRobinhood
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3
A/B Testing & Experimentation10 questions · ~96 min
A/B Test for Free StocksHard

Design a guardrail-aware A/B test for Robinhood’s free-stock offer to new signups, including MDE, power, randomization, and ship criteria.

experiment designMDEGuardrail MetricsRobinhood
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4
Statistics & Probability9 questions · ~86 min
Fraud User Probability ReasoningHard

Estimate conditional fraud probability from transaction features using labeled data, Bayesian reasoning, and a calibrated probabilistic model.

fraud detectionBayesian ReasoningprobabilityRobinhood
Probability of Joint EventsMedium

Calculate the joint probability of multiple events by multiplying conditional probabilities, with independence as a special case.

statistics fundamentalsprobabilityConditional ProbabilityRobinhood
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5
Metrics6 questions · ~58 min
Crypto Pair Adoption HealthHard

Define an adoption and health scorecard for a newly launched cryptocurrency trading pair.

adoptionFunnel AnalysisKPIRobinhood
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6
Product Sense9 questions · ~86 min
Diagnose Weekly Active User DropHard

Investigate a sudden 15 percent decline in weekly active users for an enterprise analytics product and identify the root cause.

product analysisMetricsuser retentionRobinhood
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7
More topics2 questions · ~19 min
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