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Oscar Health DevOps Engineer Interview Questions

The questions to prepare for a Oscar Health DevOps Engineer interview. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 5 questions · ~48 min
Maximum Sum Contiguous SubarrayEasy
Practice

Use Kadane's algorithm to find the contiguous subarray with the largest sum in linear time.

Dynamic ProgrammingArraysGreedyOscar Health
Hard vs Soft Links InodesMedium

Tests Linux filesystem fundamentals and correctness around inodes and link behavior.

linuxOscar Health
DFS Over Microservice DependenciesMedium

Tests graph algorithm implementation and ability to reason about service dependency traversal.

RecursionAlgorithmsGraphsOscar Health
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2
Execution3 questions · ~29 min
Fault-Tolerant Deployment PipelineHard

Tests end-to-end DevOps pipeline design for reliability, speed, and safe rollouts at scale.

Launch PlanningTrade-offsPipelinesOscar Health
Automated Backups and DR for HealthcareHard

Tests DR/backup design for regulated environments with strong reliability and recovery objectives.

Rollback PlanRisk AssessmentSecurityOscar Health
Zero-Downtime Stateful to KubernetesHard

Tests migration strategy, data/state handling, and safe cutover planning on Kubernetes.

Rollback PlanLaunch PlanningScope ManagementOscar Health
3
Behavioral & Leadership5 questions · ~48 min
Docker Isolation and Root RiskMedium

Tests container isolation knowledge and risk assessment for production deployments.

ContainersdockerSecurityOscar Health
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4
More topics1 question · ~10 min
Configuration Consistency Across EnvironmentsMedium

Approach for keeping pipeline configuration aligned across environments while controlling drift, secrets, and release risk.

IdempotencyDependenciesQualityOscar Health

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