01
Architecture & tenancy brief
Data model, org/workspace boundaries, and the RLS or middleware story - reviewed before code.
Example: ClipFlow tenancy model
AI SaaS Development
SaaS on real foundations. Not a demo in a tuxedo.
Tenancy, billing, roles, observability - the parts that break once real customers arrive. Senior engineers ship them right the first time, with AI speeding everything else up.
Typical full SaaS build: 5–10 weeks
4.9 out of 5 stars4.9
from 40+ founders & teams
- Multi-tenant from day one
- Billing that survives edge cases
- Observability before the first paying user
Architecture brief
SaaS foundation plan
What a senior engineer hands you before the first sprint ships.
- Tenancy
- Orgs + workspaces, enforced server-side
- Billing
- Plans + seats + proration + dunning
- Roles
- Owner · admin · member · custom scopes
- Observability
- Sentry · structured logs · SLO pages
Signed off before any product code ships
Week 1
Accelerated by
Lovable
Cursor
Replit
Copilot
Kiro
Antigravity
Figma MakeLovableCursorReplitCopilotKiroAntigravityFigma MakeWhat lands in your shared drive
SaaS foundations, not a feature list.
Every SaaS engagement ends with the same kit - the parts you can't afford to get wrong, shipped and documented.
Typical engagement: 5–10 weeks, 1–2 senior engineers + AI tooling.
02
Auth + RBAC
Production auth with invites, SSO-ready scaffolding, and server-enforced permissions.
03
Billing that handles edge cases
Stripe plans + proration + failed payments + dunning. The parts Stripe docs skip.
04
Admin + ops console
The tools your support team needs: impersonation, org tools, feature flags.
05
Observability kit
Sentry, structured logs, uptime checks, SLO pages. Paging live on day one.
06
Handoff + runbooks
Decision log, architecture diagram, and a runbook for the 10 things most likely to go wrong.
Example: AtlasPulse runbook
The process
How the SaaS engagement runs
- 01
Architecture week
Tenancy, plans, roles, and scale plan locked and signed off before build.
- 02
Foundation sprint
Auth, data model, billing, and observability - built before features.
- 03
Feature sprints
AI-accelerated feature work on top of solid foundations, reviewed every merge.
- 04
Harden + launch
Load testing, edge cases, and a real rollback plan before paying customers arrive.
Typical timeline:5–10 weeks, scope dependent
See SaaS case studies SaaS readiness scorecard
Score your SaaS. See the gaps. Get a real upgrade plan.
Rate six load-bearing systems. We'll tell you whether you're ready to scale, halfway there, or in MVP-to-SaaS territory - and what to fix first.
Production auth
Sign-up/login, password reset, session management, basic bot protection.
Ready means you'd ship it for a paying enterprise team.
Subscription billing
Plans, proration, failed payments, invoicing, cancellation edge cases.
Partial = Stripe Checkout only, no usage or seat logic yet.
Roles & permissions
Owner, admin, member at minimum - gated UI and API enforcement.
Partial = UI-only gating without server-side checks.
Multi-tenant data model
Workspaces/orgs with scoped queries and safe invites.
Partial = every table has a tenant_id but not enforced everywhere.
Monitoring & alerting
Error tracking, performance metrics, pager for real user impact.
Ready means someone gets paged before customers complain.
Safety net for changes
Tests + CI/CD that block broken deploys and enable safe refactors.
Partial = some coverage on critical paths only.
Readiness score
25/ 100
Upgrade path, not a rewrite.
You're in MVP-land, but we can phase the work so you keep shipping while we harden the foundations.
Biggest gaps to close first
- Monitoring & alerting(Missing)
- Roles & permissions(Missing)
- Subscription billing(Missing)
Proof
Results from recent SaaS builds
44%
Faster release cycles - AtlasPulse modernization
AtlasPulse38%
Faster incident resolution - SLO modernization
SLO0
Rewrites required during foundation upgrade
View case studyMetrics reflect specific client engagements and project scope.
Pricing & timeline
Here's the real SaaS range. No mystery quote.
Your number depends on tenancy complexity, billing model, and whether you're starting fresh or upgrading. Ranges below are the last 12 engagements.
SaaS foundation
3–5 weeksFrom $5.5k
Layer the SaaS primitives onto an existing product or greenfield v1.
- Tenancy + auth + RBAC
- Stripe billing basics
- Observability kit
- Launch runbook
Most chosen
Full SaaS build
5–10 weeksFrom $11k
Greenfield SaaS or full upgrade. The default for founders past validation.
- Everything in foundation
- Admin + ops console
- 2 custom feature sprints
- 30-day post-launch support
Growth partner
MonthlyFrom $5k/mo
Senior-led shipping after launch. Weekly shipping cadence, roadmap owned by you.
- Weekly feature delivery
- Performance + reliability upkeep
- Product direction input
What moves the number
- Tenancy
- Single-tenant quick. Multi-tenant adds a week. Enterprise-ready RBAC adds more.
- Billing model
- Flat plans are simple. Usage-based + seats + proration is where weeks compound.
- Integrations
- CRMs, SSO, SAML, webhooks - each one is days, not weeks.
- Starting state
- Greenfield is faster than untangling a live MVP. We handle both.
Quote confirmed after a 30-minute architecture call. Fixed scope, milestone billing.
FAQ
AI SaaS Development FAQ
Can you upgrade our existing MVP without a rewrite?
Usually yes. We map the upgrade path on a call, phase the work so you keep shipping, and only rewrite a module when rewriting is cheaper than patching it.
How do you handle billing edge cases nobody plans for?
We ship with proration, failed payment retry, trial-to-paid, plan-change, refund, and cancellation flows tested. Those are the 80% of Stripe tickets in month three.
What if we need SAML/SSO for enterprise later?
We scaffold auth so SSO is a drop-in later, not a rewrite. If you need SAML day one, we add 1–2 weeks and ship with a real provider.
Will our team be able to maintain the code?
Yes. Handoff includes architecture docs, decision logs, and runbooks for the top failure modes. Nothing is 'agency magic.'
What about multi-region or enterprise compliance?
We can architect for it from day one if that's the goal. If it's speculative, we don't pay the tax until you need it.
How do we start?
Send a brief or book a 30-minute architecture call. You'll talk to the senior engineer who'd build it.
Build plan
Ready to build SaaS that survives year two?
Send your product details. A senior engineer replies in under 24 hours with an architecture plan and quote.
Know what you need
Send a brief. A senior engineer replies in under 24 hours with a build plan and quote.
Need help scoping
Book a 20-minute call. We’ll map the scope together - no sales pitch.Book a call
Or email us at hello [at] codivox [dot] com