SaaS architecture best practices are about boundaries: what is shared platform vs product, what is tenant-scoped, and what must never block a deploy. Spygar applies these on SaaS development and enterprise SaaS engagements.
Good SaaS architecture makes the next feature cheaper—not the first demo prettier.
Core practices
- Bounded contexts for billing, identity, and domain features
- Explicit tenancy model with automated isolation tests
- Async work for email, imports, and partner sync
- Feature flags for gradual rollout
- Clear SLOs for API latency and job lag
Related deep dives
See SaaS API architecture, database architecture, and security best practices. For custom platforms, visit custom SaaS development.
