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Prep plan
Updated weekly · Last refresh Aug 30

Carfax Software Engineer Interview Questions

The questions to prepare for a Carfax Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~7htotal time
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1
SQL & Data ManipulationStart here. 9 questions + 3 drills · ~103 min
2
Coding23 questions · ~186 min
Refactor Failing Unit TestsHard

Tests your ability to improve code structure while making changes that satisfy unit tests in production-style code.

refactoringclean architectureCarfax
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3
Execution4 questions · ~32 min
Secure and Performant APIHard

Tests your security and performance engineering practices for production APIs serving Carfax customers.

best practicesperformance optimizationapi securityCarfax
REST CRUD for Vehicle DataHard

Tests your end-to-end design of REST APIs, domain modeling, and CRUD behavior for Carfax applications.

api designCarfax
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4
System Design4 questions · ~32 min
Azure App Service OverviewMedium

Assesses your understanding of Azure hosting and how you would deploy web services.

Carfax
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5
Behavioral & Leadership6 questions · ~48 min
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6
More topics4 questions · ~32 min
ETL and SCD BasicsMedium

Assesses ETL design skills and data modeling decisions for slowly changing dimensions.

ETLData ModelingCarfax
Kill Multiple Apache InstancesMedium

Tests your practical command-line and systems administration knowledge for managing services.

Carfax
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.