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Updated weekly · Last refresh Oct 17

OM Group Software Engineer Interview Questions

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

25questions
~3htotal time
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1
Technical FundamentalsStart here. 6 questions · ~48 min
Global Exception HandlingMedium

Tests error handling design, logging, and consistent API responses in ASP.NET Core.

error handlingtechnical experienceOM Group
Power Automate Retries and Error TrappingMedium

Tests resilience design for automated workflows and operational reliability in Power Automate.

error handlingOM Group
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2
SQL & Data Manipulation4 questions + 3 drills · ~62 min
Normalization and IndexingMedium

Tests database fundamentals and ability to reason about performance tradeoffs.

performancenormalizationindexesOM Group
Data Integrity in Bulk ImportsMedium

Tests approach to validation, constraints, and safe migration practices for reliable data changes.

data integrityOM Group
SQL Data Structure ReviewHard
Practice
Practice drill

Audit PostgreSQL metadata for missing or invalid keys and tables with inefficient sequential-scan patterns.

database optimizationindexesData StructuresMercury
Refactoring a Slow QueryMedium
Practice
Practice drill

Refactor a slow Candid Health claims query using pre-aggregation, latest-event logic, and monthly payer metrics.

Performance Tuningdatabase optimizationCTEsCandid Health
SQL Query ReviewHard
Practice
Practice drill

Identify performance, security, and SQL anti-patterns in a Mercury payment query and propose a safe executable revision.

database optimizationJoinsperformanceMercury
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3
Behavioral & Leadership10 questions · ~80 min
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4
More topics5 questions · ~40 min
High Availability StrategiesHard

Explain practical strategies for high availability, redundancy, failure detection, and disaster recovery in distributed systems.

cloud architecturedistributed systemshigh availabilityOM Group
Refactor Legacy Code to ModularityHard

Explain how to incrementally separate responsibilities, introduce dependency inversion, and make a tightly coupled codebase modular and testable.

Architecture Migrationcode qualitytesting toolsOM Group
Prioritize Debt vs Feature DeliveryMedium

Explain how you would balance technical debt work against new feature delivery without losing roadmap credibility or increasing risk.

Trade-offsRoadmappingPrioritizationOM Group
Secure Web API AuthZ/AuthNMedium

Tests ability to design secure authn/authz for web services and protect OM Group APIs.

Securitytechnical experienceOM Group
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