Top 28
Prep plan
Updated weekly · Last refresh Aug 30

Whalar Group Backend Engineer Interview Questions

The questions to prepare for a Whalar Group Backend Engineer interview. Questions from real interview reports rank first. Updated weekly.

28questions
~4htotal time
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1
System DesignStart here. 10 questions · ~80 min
REST API for High TrafficMedium

Evaluates how you design REST APIs for scale while maintaining correct data behavior.

api designscalabilitydata consistencyWhalar Group
Microservices Communication BottlenecksMedium

Tests your approach to microservices communication patterns and performance bottleneck mitigation.

bottlenecksmicroservicesWhalar Group
Multi-Tenant Database Schema DesignMedium

Assesses your ability to model data safely and efficiently for multi-tenant backends.

schema designdatabase designWhalar Group
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2
Coding4 questions · ~32 min
Git Merge vs Rebase and SOLIDHard

Tests your depth of knowledge in version control, design patterns, and SOLID correctness rules.

Whalar Group
Decision Rationale and ImprovementMedium

Assesses your ability to justify technical choices and iterate based on feedback.

Whalar Group
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3
Execution4 questions · ~32 min
Choosing Between ArchitecturesMedium

Assesses how you make pragmatic architecture decisions under constraints and uncertainty.

Decision MakingTrade-offstechnical architectureWhalar Group
Speed vs Clean Scalable CodeMedium

Evaluates how you manage engineering trade-offs between delivery pace and code health.

Trade-offsWhalar Group
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4
Behavioral & Leadership9 questions · ~72 min
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5
More topics1 question · ~8 min
Prevent SQL Injection and VulnerabilitiesMedium

Evaluates your secure coding practices for protecting backend systems and data.

security vulnerabilitiescode qualitysql injectionWhalar Group
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