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Updated weekly · Last refresh Oct 17

Optum Financial Software Engineer Interview Questions

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

30questions
~4htotal time
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1
Security & InfrastructureStart here. 4 questions · ~33 min
Meaning of HTTP 502Medium

Explain HTTP 502 Bad Gateway responses and identify whether the proxy, upstream service, or network path is failing.

NetworkinghttpDebuggingOptum Financial
Troubleshooting a Memory LeakHard

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

memory managementmemory leakDebuggingOptum Financial
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2
Coding5 questions · ~41 min
React UI Coding ExerciseHard

Evaluates your ability to implement a React-based UI solution.

reactOptum Financial
Angular and Reusable ComponentsMedium

Assesses your understanding of Angular dependency injection and component reuse.

cssOptum Financial
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3
Behavioral & Leadership17 questions · ~138 min
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4
More topics4 questions · ~33 min
Web Spreadsheet System DesignHard

Evaluates your system design skills for a collaborative, web-based application.

Optum Financial
ICD-10-PCS Root OperationsMedium

Evaluates your understanding of ICD-10-PCS concepts relevant to healthcare data processing.

Optum Financial
Scalable and Maintainable CodeMedium

Tests engineering practices for architecture, code quality, testing, and long-term maintainability.

code qualityscalabilityOptum Financial
SQL COALESCE in SQL ServerMedium

Tests your knowledge of SQL functions for handling null values.

Optum Financial
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Top High-Cost Claims QueryMedium
Practice
Practice drill

Rank Optum Financial claims by paid amount and return the highest-cost 10% using CTEs and PERCENT_RANK.

sql queryData AnalysisOptum Financial
Your Data ProjectMedium
Practice
Practice drill

Use joins, aggregation, and a CTE to identify TikTok Shop sellers with at least two completed orders.

experienceJoinsData ManipulationTikTokTikTok Shop
Integration Methods You’ve UsedHard
Practice
Practice drill

Summarize documented integration methods, usage counts, selection contexts, and latest decision dates with a PostgreSQL query.

experienceJoinsdata managementSalesforce
The finish line: interview-readyComplete all 30 questions plus 3 hands-on drills to finish this plan.