Amazon Backend Engineer Interview Questions

5200+ verified questions, indexed by team and level. Real questions submitted by candidates who completed Amazon loops in the last 24 months.

About the Amazon Backend Engineer hiring loop

Amazon rounds anchor every behavioural question to one or more of the 16 Leadership Principles. A dedicated Bar Raiser has veto power on offers. Questions are filtered to role and indexed by org (Retail, AWS, Alexa, Ads, Devices, Ring).

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 Amazon 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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