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Optum Tech Interview Questions

The questions to prepare for Optum Tech interviews, across all roles. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 5 questions + 2 drills · ~62 min
2
Execution5 questions · ~42 min
Managing Critical Cross-Team DependencyMedium

Explain how you would manage a project at risk due to a slipping dependency owned by another team.

Risk AssessmentDependenciesScope ManagementOptum Tech
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3
Pipelines4 questions · ~33 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityOptum Tech
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4
Statistics & Probability4 questions · ~33 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 Tech
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5
Machine Learning4 questions · ~33 min
Bias-Variance Tradeoff in PracticeMedium

Explain the bias-variance tradeoff and how it guides model choice, regularization, and generalization performance.

Cross-ValidationBias-Variance TradeoffRegularizationOptum Tech
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6
Metrics4 questions · ~33 min
Metrics for Project HealthEasy

Choose a practical set of leading and lagging metrics to judge whether a project is on track.

KPIsproject healthLeading IndicatorsOptum Tech
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7
More topics24 questions · ~201 min
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 Tech
Validate a Machine Learning ModelEasy

How to validate a machine learning model and interpret whether its metrics are trustworthy.

PrecisionAccuracyRecallOptum Tech
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The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.