Airbnb Backend Engineer Interview Questions

1100+ verified questions, indexed by team and level. Real questions submitted by candidates who completed Airbnb loops in the last 24 months.

About the Airbnb Backend Engineer hiring loop

Airbnb interviews are unusually frontend-heavy (React internals, accessibility, design systems). System design covers search ranking, pricing, and trust/safety pipelines. The "Core Values" round is mandatory — alignment with Airbnb's mission is scored explicitly.

Backend rounds score on API design quality, database-tier reasoning, scalability anchoring, and operational maturity (observability + reliability). Trade-off articulation differentiates Senior from Mid.

Topics covered in Airbnb Backend Engineer interviews

  • 01API design (REST, GraphQL, gRPC, idempotency, versioning, pagination)
  • 02Database design (relational vs document vs wide-column, indexing, query plans)
  • 03Caching strategies (read-through, write-through, write-back, invalidation)
  • 04Concurrency + async (threads, event loops, queues, distributed locks)
  • 05Authentication + authorization (OAuth, JWT, RBAC, ABAC, session management)
  • 06Observability (logs, metrics, traces, SLOs, error budgets)

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