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Updated weekly · Last refresh Aug 30

Capgemini Invent Data Scientist Interview Questions

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

40questions
~6htotal time
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1
SQL & Data ManipulationStart here. 5 questions · ~45 min
Monthly Sales Trends by CategoryMedium
Practice

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingCapgemini Invent
SQL Window Function RankingEasy
Practice

Rank customers by total revenue within each region using a window function.

Window FunctionsRankingGroup ByCapgemini Invent
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2
A/B Testing & Experimentation3 questions · ~27 min
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingCapgemini Invent
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3
Machine Learning11 questions · ~99 min
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffCapgemini Invent
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4
Statistics & Probability3 questions · ~27 min
Evaluating Observed Lift SignificanceMedium

Explain how to test whether an observed experiment lift is real using hypothesis testing, p-values, and confidence intervals.

Confidence IntervalsStatistical SignificanceP-ValuesCapgemini Invent
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5
Behavioral & Leadership15 questions · ~135 min
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6
More topics3 questions · ~27 min
Diagnose KPI Drop After ReleaseMedium

Diagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.

KPILeading IndicatorsDiagnosisCapgemini Invent
Optimize a Process with Data InsightsMedium

Assesses product sense and your ability to translate data findings into operational improvements.

Value PropositionUse CasesProduct VisionCapgemini Invent
Classify Leading vs Lagging MetricsEasy

Explain how to distinguish early directional metrics from outcome metrics, using a clear KPI framework tied to product decisions.

Lagging IndicatorsKPIsLeading IndicatorsCapgemini Invent
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