A SaaS product has specific architectural requirements. Not every developer has built one.
Multi-tenant data isolation, subscription billing with Stripe Billing, plan-based feature gating, usage metering, customer onboarding flows, and in-app upgrade prompts — these are the SaaS-specific patterns that a developer who has only built single-tenant apps won't have in their toolkit. We've built them before.
You need a developer who understands the architecture of a SaaS product — not just a developer who will try to figure it out as they go.
SaaS architecture has specific requirements that don't appear in single-tenant application development:
Multi-tenancy. Your customers' data needs to be completely isolated from each other. Multi-tenancy can be implemented at different levels: separate databases per tenant (maximum isolation, high infrastructure cost), separate schemas per tenant (good isolation, manageable cost), or row-level security with a tenant_id column (most common, lower cost, requires careful enforcement). The wrong choice at the architecture stage is expensive to fix — you're either over-building infrastructure or under-isolating data.
Subscription billing. Stripe Billing has a specific model (Products, Prices, Subscriptions, Customers, Payment Methods) and the Stripe webhook events that need to be processed to keep your application state in sync with Stripe's billing state are numerous and order-sensitive. A developer who hasn't built Stripe Billing integration before will spend 2–3 weeks figuring out the edge cases (subscription downgrades mid-cycle, proration calculations, failed payment dunning, payment method expiry).
Feature gating. Plan-based feature access needs to be enforced consistently — at the API layer, not just in the UI. A developer who only gates in the UI leaves the API endpoints accessible. Feature gating in the database layer (Postgres RLS) or the API middleware is the correct approach.
Customer onboarding. The first activation moment — the point where a new customer completes the core setup and gets value — is the single most important product metric in early SaaS. The onboarding flow design and the activation tracking are SaaS-specific concerns that require specific experience to implement well.
A production multi-tenant SaaS application with subscription billing, feature gating, customer onboarding, and the architectural patterns that make it extensible as the product grows.
Multi-tenant data model
Clerk Organisations for tenant management — each customer is a Clerk Organisation, members are added and permission-managed via Clerk's built-in multi-tenant APIs. Database tables include organisation_id foreign key, Postgres RLS enforces row-level access, API middleware validates tenant context on every request.
Stripe Billing integration
Products and Prices configured in Stripe, Checkout for new subscriptions, Customer Portal for self-service upgrades/downgrades/cancellation, webhook processing for subscription lifecycle events (customer.subscription.created, customer.subscription.updated, invoice.payment_failed), and sync logic to keep the application database subscription state current with Stripe.
Plan-based feature gating
Feature flags stored per subscription plan in the database. API-layer enforcement — every feature-gated endpoint checks the requesting organisation's active plan before responding. UI prompts for upgrade when a customer hits a gated feature.
Onboarding flow
Multi-step onboarding with progress persistence — partially completed onboarding is saved, customers can leave and resume. Activation event tracking (Mixpanel or Segment) to identify where customers drop off in the onboarding flow.
In-app subscription management
Billing page with current plan details, usage metrics, Stripe Customer Portal embed for self-service plan changes.
One honest number to start.
Fixed-scope, fixed-price. The number below is the starting point — final scope is built from your brief.
A production multi-tenant SaaS application with subscription billing, feature gating, customer onboarding, and the architectural patterns that make it extensible as the product grows.
Three steps, every time.
The same repeatable engagement on every project. No surprises, no mystery, no billable ambiguity.
Brief & discovery.
We send you questions, then get on a call. Output: a written scope with every step, feature, and integration listed.
Build & ship.
Fixed schedule, weekly reviews. No scope creep unless you change the scope — and if you do, we reprice it transparently.
Warranty & retainer.
30-day warranty on every launch. Most clients stay on a monthly retainer for ongoing features and maintenance.
Why Fixed-Price Matters Here
A SaaS MVP is a defined deliverable. The features, the billing model, the plans, and the tenant model are specified before development starts. Fixed scope, fixed price.
Related engagements.
You have the SaaS idea. We build the production MVP while you close your first customers.
Read more02Multi-tenancy is not just user authentication. It's an architecture decision that affects every part of the system.
Read more03You don't need a technical cofounder to launch your SaaS. You need the right developer.
Read moreQuestions, answered.
The default architecture is Stripe Billing with per-seat subscription plans. Usage-based billing (where the monthly invoice is determined by metered usage rather than a flat fee) requires Stripe's metered billing API and additional metering infrastructure — this is a scoped addition, not a default.
Development uses Stripe test mode (no real charges). Production uses Stripe live mode. The migration includes creating equivalent Products and Prices in live mode, updating the environment variables, and verifying the webhook endpoint in the Stripe live mode dashboard. Stripe provides migration tooling that we've used across multiple production launches.
The subscription cancellation flow: customer initiates cancellation via Stripe Customer Portal → Stripe sends customer.subscription.deleted webhook → application marks the organisation as cancelled, downgrades access to a cancelled/free tier, sends the cancellation confirmation email. The offboarding flow (data export, re-activation path) is defined in the project scope.
A production SaaS MVP with multi-tenancy, Stripe Billing, plan gating, onboarding, and core features typically runs $25k–$55k. The specific scope determines the price. Fixed-price.
10 to 14 weeks from specification to production deployment.
Tell Ryel about your project.
Describe what you’re building and what outcome you need. You’ll have a written, fixed-price scope within the week.