Zar Labs
SaaS architecture for startups
Last reviewed: 2026-09-28
Executive summary
Start with clear tenancy, auth, billing, and observability. Defer exotic scale until product-market fit — but do not skip security basics.
Foundations
- Tenant isolation model
- Auth + roles
- Billing (Stripe etc.)
- Staging + CI/CD
- Basic monitoring
Pros & cons
Pros
- Faster safe MVP
- Less rewrite risk
Cons / watch-outs
- Some early decisions still matter (tenancy)
Comparison
| Layer | MVP need |
|---|---|
| Multi-tenant | Yes — decide early |
| Global edge complexity | Usually later |
Frequently asked questions
Do you build SaaS MVPs?
Yes. See /services/saas-development and /guides/saas-mvp-development-timeline.
Ready to scope your build?
Share goals, stack constraints, and timeline. We’ll respond with a discovery path and phased estimate.