Every great SaaS product started as a platform someone had the conviction to build properly.
We build SaaS platforms — multi-tenant architectures, subscription billing infrastructure, usage metering systems, and the product analytics and feature flag infrastructure that lets you ship, test, and iterate on a production product. Fixed scope, fixed price.
You've validated the idea. You've got the design. What you need now is an engineering partner who can build the multi-tenant backend, the Stripe billing integration, and the admin dashboard — and deliver it in a timeline that doesn't let your market window close.
Building a SaaS product requires a set of cross-cutting infrastructure concerns that are required by every SaaS product but are specific to none of them. Multi-tenant data isolation — ensuring that customer A cannot access customer B's data — is a foundational requirement that needs to be correct before you sign your first customer. Stripe subscription billing with proration, upgrade/downgrade logic, and failed payment handling is non-trivial to implement correctly. User and team management with roles, permissions, and invite-based onboarding is a solved problem in principle and a complex one in implementation.
The founders who build SaaS products without a strong engineering foundation encounter the same problem at 500 customers: the codebase has accumulated enough technical debt from shortcuts and workarounds that new features take twice as long to build as they should, and the infrastructure decisions made at launch are now blocking the product roadmap. Re-architecting a production system is more expensive than building it correctly the first time.
The right SaaS platform investment is one that delivers the core product functionality along with the infrastructure layer — the multi-tenant backend, the billing system, the analytics, and the deployment and monitoring setup — that makes the product sustainable as it grows.
A production SaaS platform with multi-tenant data isolation, Stripe subscription billing, user and team management, in-app analytics, and the engineering foundation that doesn't need to be rebuilt at 1,000 customers.
Multi-tenant architecture
Row-level security with organisation-scoped data isolation (Postgres RLS). Tenant provisioning on signup. Cross-tenant query prevention at the data layer. Tenant-specific configuration and branding where required.
Stripe subscription billing
Plan configuration with per-seat, flat-rate, or usage-based pricing. Subscription creation, upgrade, downgrade, and cancellation with proration. Stripe Customer Portal for plan management and payment updates. Webhook handling for billing events with idempotency.
User and team management
Organisation creation with invite-based team member onboarding. Role-based access control (admin, member, viewer) configurable per plan tier. SSO integration (Google, Microsoft) and magic link authentication.
Usage metering and limits
Feature flag system with plan-gated features. Usage counter enforcement (API calls, seats, storage, events) with graceful limit handling and upgrade prompts. Usage displayed in the customer dashboard.
Admin and analytics dashboard
Internal admin panel: customer list, subscription status, MRR, churn events, and user activity. Product analytics: feature adoption rates, session data, and retention cohorts. Error monitoring via Sentry. Built on Next.js, Postgres with RLS, Clerk or Auth.js for authentication, Stripe, Convex for real-time features, and Vercel for deployment.
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 SaaS platform with multi-tenant data isolation, Stripe subscription billing, user and team management, in-app analytics, and the engineering foundation that doesn't need to be rebuilt at 1,000 customers.
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
SaaS founders are managing burn rate against milestones — the first $1k MRR, the first 100 customers, the Series A metrics. The technology build needs to be a defined cost against a defined deliverable so the runway math is predictable. Fixed scope, fixed price, and a delivery date you can build a launch plan around.
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Read moreQuestions, answered.
We use Postgres Row Level Security (RLS) with an organisation ID scoped to the session context. Every query is automatically filtered to the authenticated organisation's data. Cross-tenant queries are prevented at the database layer, not just the application layer. This scales to millions of rows without schema-per-tenant complexity.
Usage events are emitted from the application (API call, active seat, storage byte) and logged to a metering store. At billing cycle end, usage is aggregated and reported to Stripe via the Stripe usage records API. Stripe calculates the variable charge component and adds it to the subscription invoice.
Yes — self-serve customers flow through Stripe checkout and self-provision. Sales-assisted customers are provisioned manually with a Stripe subscription created by the internal team. Enterprise contract billing (invoice-based, non-Stripe) is an additional scope item.
Multi-tenant app with billing, user management, usage metering, and admin tools typically runs $35k–$75k. Real-time features, mobile apps, and complex usage metering models add scope. Fixed-price.
12 to 16 weeks for a production SaaS platform with billing and multi-tenancy live.
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.