SaaS Backend Infrastructure

Skip the tests that pass and focus on what actually breaks in production.

Global tax compliance becomes a core backend requirement, not an afterthought.

AI agents demand different backend architecture than traditional SaaS apps require.

Multi-tenant wins by default, but compliance and security concerns demand single-tenant isolation.

Async events replace direct calls to keep services independent and state consistent.

Preventing duplicate charges requires building idempotency into your payment API from the start.

Distinguish where each layer sits and why treating a gateway as a load balancer costs real money.

A CDP catches churn signals early; a CRM only sees what salespeople record.

Choose your database isolation model now or rebuild it later during a compliance crisis.