SaaS Platform Development for Founders Past the No-Code Stage

Multi-tenant SaaS on Next.js, PostgreSQL, and Stripe Billing — auth, RBAC, billing, admin tooling, and the operational backbone you need to scale past your first 100 customers. Founder-led from MVP to enterprise tier.

When the prototype hits a wall

Most SaaS products start the same way — a no-code prototype, a few paying customers, then a hard wall the day the founders realize they need real multi-tenancy, real billing, real admin tooling, and real audit logs. The Airtable backend cannot model the workflows. The Webflow front end cannot ship the dashboard. The Stripe Checkout link cannot handle the proration and dunning. Suddenly the same founders who built a working product on no-code are staring at a six-figure rewrite from an agency that wants to start over.

Custom SaaS platform development picks up where no-code stops. We build the production-grade version of what you already proved demand for — with the architecture, billing, and operational layer your real customers expect. The product surface lives in Next.js, the data lives in PostgreSQL, the money flows through Stripe Billing, and the whole thing is yours.

What we build

Multi-tenant architecture with row-level security, schema-per-tenant, or full database-per-tenant isolation
Authentication including email/password, magic link, Google, Microsoft, SAML SSO, and SCIM provisioning
Role-based access control with custom permissions, team and seat management, and invite flows
Stripe Billing wired for plan tiers, metered usage, seat-based pricing, mid-cycle proration, and dunning
Customer-facing billing portal — upgrades, payment methods, invoice history, seat changes
Admin console for your operations team — tenant search, impersonation with audit, manual billing actions, refund handling
Audit logging across every state-changing action — exportable, retainable, and SOC 2 audit-ready
Onboarding and product-led growth surfaces — checklists, in-app upgrade prompts, trial expiration flows
Webhooks, public API, and the developer surface customers and partners need
Operational layer — Sentry, PostHog, log aggregation, alerting, and an on-call playbook

Our methodology

Three-week discovery — user flows, tenant model, pricing model, data model, RBAC matrix, and a phased build plan. From there we run twelve- to twenty-four-week build phases with biweekly demos to your stakeholders, paying customers on the platform from week eight, and a hardening sprint before each major release.

Discovery is paid separately at $3,500 for SaaS builds — the spec is more involved than a single-tenant app. You walk away with wireframes, a data model, an RBAC matrix, a pricing model, and a phased estimate. Useful even if you take it to another developer.

Process & timeline

Week 1-3: Discovery sprint — tenant model, RBAC, pricing model, data model, phased plan
Week 4-7: Foundations — auth, multi-tenant data layer, billing skeleton, admin console v0
Week 8-16: Core product surface — your unique feature work, customer-facing UI, onboarding
Week 17-20: Hardening — audit logs, SSO, observability, security review, performance pass
Week 21-24: Launch — paid customers on the platform, support runbook, 60-day post-launch support

Tech & tools

Next.js 15 + App Router

TypeScript

PostgreSQL + Prisma

Stripe Billing

Clerk / Auth.js / WorkOS

Redis + BullMQ

PostHog + Sentry

Vercel / Fly.io / AWS

Docker + Kubernetes

Same backbone we use for every Next.js web application and custom CRM. Billing wired through our Stripe integration playbook.

Reference builds

Our internal sales platform — J5 Sales OS — runs on the same multi-tenant patterns we ship to SaaS clients. Contact deduplication, outreach presets, dual-mode lead flow, embedded reporting, Stripe and QuickBooks integration, full audit logs. Production-grade from day one. We dogfood the patterns before we ship them.

SaaS-adjacent builds in production: a contractor estimating engine with multi-org workflows, a motorcycle shop ops platform with role-based service-bay access, and Wilder Recovery for tenant-isolated coaching workflows. Same architecture, different domains.

SaaS development served from Macon, GA, with clients across Atlanta, Austin, Seattle, and beyond.

Pricing

Fixed-fee per phase. Typical ranges:

SaaS MVP (single tier, basic billing, B2B): $45k – $85k
Full multi-tier SaaS with admin console and Stripe Billing: $75k – $140k
Enterprise-tier features — SAML SSO, SCIM, audit logs, SOC 2 prep: $40k – $80k add-on
Discovery sprint with tenant model, RBAC, pricing model, and phased plan: $3,500 flat

60-day post-launch support included on every SaaS build. Optional retainer for ongoing feature work, integration additions, and platform upgrades.

What you get

Full source code repository in your GitHub organization
Production deployment plus staging environment for safe releases
Multi-tenant database schema with migrations and a documented data model
Stripe Billing configuration in your account, with reconciliation against your PostgreSQL ledger
Admin console for tenant management, impersonation with audit, and operational tooling
60-day post-launch support — bug fixes, billing edge cases, first-customer escalations
Documentation — admin runbook, user docs, API docs, and a deployment guide
Optional retainer for continued feature work and platform upgrades

FAQs

How is multi-tenant architecture handled — shared schema, schema-per-tenant, or database-per-tenant?

Default is shared schema with a tenant_id column on every row plus row-level security at the PostgreSQL layer. Schema-per-tenant when customers demand stronger isolation. Database-per-tenant when you have an enterprise tier that requires data residency. We pick the right one in discovery based on your buyers and your compliance bar.

How long does a SaaS MVP take?

12 to 24 weeks for a v1 with multi-tenant auth, billing, the core product surface, and an admin console. The longer end includes RBAC, audit logging, SAML SSO, and SOC 2 prep. We always ship a usable, paying-customer-ready v1 before adding nice-to-haves.

What about Stripe Billing — plan tiers, usage-based, proration, dunning?

All of the above. Plan tiers, metered usage, seat-based, hybrid pricing, mid-cycle upgrades with proration, dunning, churn recovery, and revenue dashboards. Stripe is the payment processor; PostgreSQL is the source-of-truth ledger so reconciliation never breaks.

Can you build us toward SOC 2 readiness?

Yes. Audit logging, RBAC, SSO with SAML and SCIM, encryption at rest and in transit, secret management, and the operational evidence your auditor will ask for. We build platforms that can survive a SOC 2 Type II without a rebuild.

Do we own the code?

Completely. You get the GitHub repository, the database schema, the deployment configuration, and the documentation. There is no platform tax, no per-tenant fee, and no exit ransom — your SaaS belongs to you.

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Background on our data-ownership philosophy: the custom CRM development guide applies to SaaS as well. To scope a SaaS project, contact us directly.

SaaS Platform Development — Where We Serve

Georgia-based engineering team, working with SaaS founders across 14 US metros. Discovery and build run remotely; in-person founder sessions easy to schedule in Atlanta and the Southeast.