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ShipBob Data Scientist Interview Questions

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

35questions
~5htotal time
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1
Machine LearningStart here. 9 questions · ~74 min
Describe an ML Project You BuiltMedium

Describe a machine learning project, from problem framing and feature work to model training and evaluation.

Cross-ValidationFeature EngineeringSupervised LearningShipBob
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2
Metrics3 questions · ~25 min
First Checks for Metric DropsEasy

Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.

Lagging IndicatorsLeading IndicatorsDiagnosisShipBob
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3
Statistics & Probability3 questions · ~25 min
Statistical Significance in Hypothesis TestingEasy

Explain what statistical significance means and why it matters when interpreting experimental or analytical results.

Hypothesis TestingData AnalysisStatistical SignificanceShipBob
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4
Behavioral & Leadership12 questions · ~99 min
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5
More topics8 questions · ~66 min
Validate Real-World Model PerformanceHard

How to validate a model's real-world performance beyond offline metrics, with calibration and threshold decisions tied to production outcomes.

Cross-ValidationCalibrationAUC-ROCShipBob
Common Pitfalls in Experiment ResultsHard

Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.

PeekingNovelty EffectSample Ratio MismatchShipBob
Estimating Transit Times by CarrierHard

Tests system design for carrier-level prediction, data pipelines, and operational reliability.

system designShipBob
Design User Engagement MetricMedium

Tests metric design and operationalization for measuring FIRSTNET GLOBAL user engagement.

product metricsdesignuser engagementShipBob
SQL Window FunctionsMedium

Tests practical SQL proficiency for analytics and feature engineering workflows.

Data Manipulationsql queriessqlShipBob
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Second Attempt Score Per UserEasy
Practice
Practice drill

Use ROW_NUMBER to return each student's second score on a specified Khan Academy exercise.

Data Analysissqluser engagementKhan Academy
Top Users by Recent Transaction VolumeMedium
Practice
Practice drill

Find the top 3 users by completed transaction volume in the last 30 days using joins and aggregation.

Data Analysisquery optimizationsqlTTier 1 BankRevolutChime
Identify Funnel Bottlenecks in OnboardingHard
Practice
Practice drill

Use joins, CTEs, and aggregations to find the weakest step in an onboarding funnel and estimate lost conversions.

Funnel AnalysissqlDiagnosisAtlassianRevolut
The finish line: interview-readyComplete all 35 questions plus 3 hands-on drills to finish this plan.