Tell me about a database design decision you made.

Explain access patterns, data relationships, constraints, indexing, and migration risk.

How do you handle slow queries in production?

Discuss query plans, indexes, cardinality, caching, pagination, and measuring impact.

Talk about timeouts, retries, idempotency, alerting, graceful degradation, and incident learning.

Cover authentication, authorization, input validation, rate limits, secrets, logging, and least privilege.

Mention compatibility, backfill, rollout, monitoring, rollback, and communication.

Discuss user latency, reliability, retry semantics, ordering, and operational complexity.

Start with scope, recent deploys, dependencies, logs, traces, and customer impact.

Point to predictable contracts, docs, errors, examples, and stable behavior under edge cases.

Show when you defer complexity and what signals would justify a more scalable design.

Engineering10 Prompts

Top backend developer interview questions for APIs, databases, reliability, security, scalability, and service ownership.

Target Audience

backend, platform, API, and server-side engineers preparing for technical interviews

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Copilot Strategy & Answer Tip

Clarify consumers, resource model, validation, errors, versioning, auth, and observability.

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