Top 19
Prep plan
Updated weekly · Last refresh Aug 30

Optum Financial Data Scientist Interview Questions

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

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1
SQL & Data ManipulationStart here. 4 questions + 3 drills · ~63 min
2
Machine Learning3 questions · ~25 min
Supervised vs Unsupervised LearningMedium

Assesses your ML fundamentals and ability to choose methods for forecasting use cases.

Unsupervised Learningfinancial forecastingSupervised LearningOptum Financial
ML for Business ProblemMedium

Evaluates your applied ML thinking and impact on business outcomes.

business problemOptum Financial
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3
Behavioral & Leadership7 questions · ~57 min
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4
More topics5 questions · ~41 min
Statistical Significance in Hypothesis TestingEasy

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

Hypothesis TestingData AnalysisStatistical SignificanceOptum Financial
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 IndicatorsDiagnosisOptum Financial
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 TestingOptum Financial
Design User Engagement MetricMedium

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

product metricsdesignuser engagementOptum Financial
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 MismatchOptum Financial

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