Designing Tenant-Isolated Retrieval for Recruiting Search in 2026
A DEV Community guide argues that tenant isolation in recruiting search must be enforced through indexing and query rules rather than added as an afterthought. It recommends a staged retrieval design with explicit collections, bounded queries, and source traceability so every answer shows which tenant records supported it and when they were refreshed. Each indexed item should carry an immutable tenant identifier, access scope, document ID, and freshness timestamp, with eligibility filtering applied before semantic search. The article also covers freshness policies for replaced résumés, trade-offs between collection-per-tenant and shared-collection designs, and bounded top-k limits, deadlines, and retry behavior. It includes a TypeScript service sketch separating provider integration from isolation and traceability logic.
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