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Updated weekly · Last refresh Oct 17

Curinos Data Scientist Interview Questions

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

23questions
~3htotal time
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1
Machine LearningStart here. 6 questions · ~52 min
Experience with Predictive ModelingMedium

Explain your experience building predictive models, from feature work and validation to tuning and deployment.

Cross-ValidationFeature EngineeringSupervised LearningCurinos
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2
Statistics & Probability3 questions · ~26 min
Interpreting P Values in TestingEasy

Explain what a p-value means in hypothesis testing and how it relates to statistical significance.

Hypothesis TestingStatistical SignificanceP-ValuesCurinos
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3
Behavioral & Leadership4 questions · ~35 min
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4
More topics10 questions · ~87 min
7-Day Rolling Active UsersMedium
Practice

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsCurinos
Check for Model OverfittingEasy

How to tell whether a model is overfitting using train and validation performance.

Cross-ValidationF1 ScoreAccuracyCurinos
Improve Subscription Customer RetentionMedium

Framework for diagnosing churn and prioritizing product changes to improve retention in a subscription service.

User NeedsUse CasesProduct VisionCurinos
Define Metrics for a Customer TestHard

Define the primary metric, guardrails, and power for a customer-facing A/B test before deciding whether to ship.

ExperimentationGuardrail MetricsA/B TestingCurinos
Batch vs Streaming Data ProcessingEasy

Compare batch and streaming data processing, including when each fits best in a pipeline.

Stream ProcessingETLBatch ProcessingCurinos
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 IndicatorsDiagnosisCurinos
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
The finish line: interview-readyComplete all 23 questions plus 2 hands-on drills to finish this plan.