post://designing-multi-tenant-saas-backend

Designing a Multi-Tenant SaaS Backend

author: Swadhin Biswas • • read: 1 min
System DesignBackendArchitecture
Designing a Multi-Tenant SaaS Backend

Designing a Multi-Tenant SaaS Backend

Choose isolation level based on compliance + cost.

Isolation options

  1. Shared DB, shared schema
  2. Shared DB, separate schema
  3. Dedicated DB per tenant

Routing

Use tenant ID from signed token and enforce row-level checks in all queries.