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Updated weekly · Last refresh Oct 17

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 daily.

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1
CodingStart here. 6 questions · ~57 min
List Hosts in a CIDR BlockMedium
Practice

Calculate a subnet's network range and enumerate valid IPv4 host addresses using bit masks.

Bit ManipulationMathNetworkingOscar Health
Maximum Sum Contiguous SubarrayEasy
Practice

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

Dynamic ProgrammingArraysGreedyOscar Health
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2
Execution4 questions · ~38 min
Zero-Downtime Deployment StrategyMedium

Explain your approach to rolling updates, canary releases, and zero-downtime deployments with clear rollback criteria and stakeholder alignment.

canary releaseszero downtimerolling updatesOscar Health
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3
Security & Infrastructure3 questions · ~28 min
AWS Multi-Tier App SecurityMedium

Tests network security design for AWS-based services handling Oscar Health member traffic.

InfrastructureSecurityawsOscar Health
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4
System Design4 questions · ~38 min
CI/CD for Microservices on AWSMedium

Evaluates pipeline design for microservices in AWS with reliability and security considerations.

CI/CDawsmicroservicesOscar Health
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5
Behavioral & Leadership5 questions · ~47 min
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6
More topics4 questions · ~38 min
Configuration Consistency Across EnvironmentsMedium

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

IdempotencyDependenciesQualityOscar Health
Critical Linux TroubleshootingMedium

Gauges depth of Linux diagnostics for resource pressure in production.

linuxTroubleshootingproductionOscar Health
Manage Pipeline Infrastructure as CodeEasy

Approach for managing data pipeline infrastructure as code, including orchestration, drift control, and operational monitoring.

InfrastructureToolsQualityOscar Health
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