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Updated weekly · Last refresh Oct 17

UnitedHealth Group Software Engineer Interview Questions

The questions to prepare for a UnitedHealth Group Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~13htotal time
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1
CodingStart here. 18 questions · ~284 min
Max Product Pair in O(n)Medium
Practice

Find the two array values with the maximum product in O(n), including cases where two negative values produce the answer.

ArraysArray ManipulationAlgorithmsUnitedHealth Group
Best Time to Buy and Sell StockMedium
Practice

Find the maximum profit from one buy and one later sell using a single linear scan.

Dynamic ProgrammingArraysArray ManipulationUnitedHealth Group
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2
SQL & Data Manipulation8 questions · ~126 min
SQL: Users with Multiple LoginsEasy
Practice

Identify users with more than two login events using aggregation and a user-to-login join.

Group Bydatabase queryingAggregationsUnitedHealth Group
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3
System Design8 questions · ~126 min
Common Microservice Design PatternsEasy

Discuss microservice patterns you have used, why you selected them, and how you handled reliability, consistency, and service failures.

distributed systemsapi gatewayarchitecture patternsUnitedHealth Group
Configure Multiple Databases in Spring BootHard

Configure two independent databases in one Spring Boot application with separate repositories, entity managers, and transactions.

backend integrationdatabase accessarchitecture patternsUnitedHealth Group
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4
Security & Infrastructure5 questions · ~79 min
Troubleshooting a Memory LeakHard

Diagnose a memory leak using OS telemetry, heap profiling, controlled reproduction, and safe production mitigation.

memory managementmemory leakDebuggingUnitedHealth Group
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5
Technical Fundamentals4 questions · ~63 min
Azure CI/CD for MicroservicesHard

Tests end-to-end delivery practices, container workflows, and deployment automation for production systems.

CI/CDcontainerizationUnitedHealth Group
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6
Behavioral & Leadership5 questions · ~79 min
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7
More topics2 questions · ~32 min
Trade-offs of Go and HTMXMedium

Tests your ability to evaluate architecture trade-offs across performance, complexity, and maintainability.

Trade-offstechnical discussionFrameworksUnitedHealth Group
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