GEN Backend Engineer Interview Questions
The questions to prepare for a GEN Backend Engineer interview. Questions from real interview reports rank first. Updated daily.
Optimize a slow PostgreSQL query that aggregates completed transactions while preserving customers with no matching activity.
GENEvaluates your ability to design indexes that improve query performance without undue cost.
GENAssesses your approach to preserving correctness across services and failure scenarios.
GENUse SQL window functions to rank regions by average 2024 yield within each country.
Ernst & Young
KBR
Maximus TechWrite an optimized PostgreSQL query that aggregates qualifying Citi account transactions efficiently.
CitiEvaluates your ability to write maintainable backend code using SOLID and clean code standards.
GENTests your practices for reliable error handling and actionable logging in production backends.
GENTests your understanding of performance trade-offs for backend throughput and latency.
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Tests conflict resolution in technical disagreements, including communication, influence without authority, and ownership of the final outcome.
GENAssesses your system design understanding of sync versus async flows and their implications.
GEN