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Updated weekly · Last refresh Sep 22

Optum Site Reliability Engineer Interview Questions

The questions to prepare for a Optum Site Reliability Engineer interview. Questions from real interview reports rank first. Updated daily.

22questions
~3htotal time
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1
ExecutionStart here. 10 questions · ~80 min
Choose Cloud Scaling StrategyMedium

Explain horizontal vs vertical scaling in cloud environments and how you would choose between them for a production service.

horizontal scalingvertical scalingcloud scalingOptum
Diagnose Production Latency IncidentMedium

Explain how you would diagnose a production latency issue, align stakeholders, and decide whether to mitigate, roll back, or continue investigating.

Risk AssessmentTroubleshootingQualityOptum
CI/CD Deployment SafetyMedium

Assesses your practices for safe releases, risk reduction, and operational reliability.

CI/CDAutomationdeploymentOptum
Database Consistency Trade-offsMedium

Evaluates your understanding of consistency, availability, latency, and correctness trade-offs.

Trade-offsdatabaseOptum
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2
Security & Infrastructure3 questions · ~24 min
Troubleshooting Production Service FailuresMedium

Assesses your structured debugging process and ability to restore service reliably.

production environmentTroubleshootingOptum
Log Aggregation and MonitoringMedium

Tests your monitoring and observability approach for detecting and diagnosing issues at scale.

monitoringOptum
Handling Sudden Latency SpikesMedium

Evaluates your incident response approach for latency degradation in production.

latencyTroubleshootingOptum

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3
Behavioral & Leadership9 questions · ~72 min
Automating a Manual Reporting WorkflowMedium

Tests ownership and influence through automating a manual workflow, with focus on prioritization, adoption, and measurable business impact.

CommunicationOwnershipPrioritizationOptum
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The finish line: interview-readyComplete all 22 questions to finish this plan.