Salesforce Backend Engineer Interview Questions

1500+ verified questions, indexed by team and level. Real questions submitted by candidates who completed Salesforce loops in the last 24 months.

About the Salesforce Backend Engineer hiring loop

Salesforce interviews lean enterprise-software: Apex, Lightning Web Components, multi-tenant architecture, governor limits. The "V2MOM" framework anchors leadership rounds. Customer-success orientation 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 Salesforce 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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