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GEN Backend Engineer Interview Questions

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

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SQL Query OptimizationMedium

Tests your approach to diagnosing and improving SQL performance.

Performance Tuningsql
Recently asked
GEN
Migrations Without Downtime
Medium

Assesses your strategy for safe schema changes in production systems.

sql
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GEN
Indexing and Column Selection
Medium

Evaluates your ability to design indexes that improve query performance without undue cost.

indexingquery optimization
Recently asked
GEN
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Resolving Technical Conflict on Approach
Medium

Tests conflict resolution in technical disagreements, including communication, influence without authority, and ownership of the final outcome.

Conflict ResolutionStakeholder ManagementCommunication
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GEN
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Production Error Handling and LoggingMedium

Tests your practices for reliable error handling and actionable logging in production backends.

error handlingproduction systems
Recently asked
GEN
Applying SOLID Principles
Medium

Assesses your ability to design maintainable backend code using SOLID principles.

clean codemaintainabilitysolid principles
Recently asked
GEN
Data Structure Trade-Offs
Medium

Tests your understanding of performance trade-offs for backend throughput and latency.

api designperformanceData Structures
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GEN

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Synchronous vs Asynchronous Processing
Medium

Assesses your system design understanding of sync versus async flows and their implications.

architecture
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GEN