Persistent Engineering Manager Interview Questions

The questions to prepare for a Persistent Engineering Manager interview. Questions from real interview reports rank first. Updated weekly.

Automated API Pagination

Medium

Tests your approach to designing reliable, scalable pagination for APIs.

paginationapi designscalability

Persistent

Scale Node.js for 10x Traffic

Hard

Assesses your ability to plan and execute scaling strategies for high-throughput Node.js services.

Performance Tuningnode.jsscalability

Persistent

Concurrency Without Data Loss

Hard

Evaluates system design choices for correctness under concurrent access.

system designdata integrityconcurrency

Persistent

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Assesses data modeling trade-offs for analytical workloads.

SQL WHERE vs HAVING

Easy

Tests understanding of SQL query filtering semantics and aggregation behavior.

query optimizationsql

Persistent

Optimize a Slow Production Query

Hard

Tests your ability to diagnose and improve database performance under production constraints.

database optimizationproduction environment

Persistent

Explain how you prioritize technical debt versus feature work while aligning stakeholders and protecting delivery speed.

Data Storage Trade-Offs

Medium

Assesses decision-making across storage options based on requirements and constraints.

Trade-offsproject planningdata storage

Persistent

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