Full-Stack Application/SaaS / B2B

Multi-Tenant SaaS Platform — 0 to 150 Paying Customers

150+

Paying Customers

$18K

MRR at Month 3

10wks

Idea to Launch

99.9%

Uptime

The Challenge

A technical founder had validated a project management tool idea with 50 beta users on a Notion template, but needed a real product to start charging. They required multi-tenancy with workspace isolation, team invites, role-based permissions, and a billing system — all on a $15K budget. Previous dev shop quotes came in at $80K+ with 6-month timelines. They had 3 months of runway left.

Our Solution

We built a production-ready multi-tenant SaaS platform from scratch in 10 weeks, complete with billing, team management, and a polished UI.

Multi-Tenant Architecture with Supabase RLS

Designed a multi-tenant data model using Supabase Row Level Security. Each workspace is fully isolated at the database level — users only see their own data, and cross-tenant leaks are architecturally impossible. Supports unlimited workspaces per user.

Team Management & RBAC

Built a complete team management system with email invites, role-based access control (Owner, Admin, Member, Viewer), and workspace settings. Supabase Auth handles SSO with Google and GitHub, plus magic link login.

Stripe Connect Billing

Integrated Stripe with three pricing tiers, annual/monthly toggle, per-seat billing, and a self-serve customer portal. Stripe webhooks sync subscription status in real-time to Supabase, gating features based on plan level.

Next.js App with Edge Performance

Built the entire frontend in Next.js 14 with RSC and streaming. Server Components handle data-heavy pages while Client Components power interactive features. Deployed on Vercel with edge caching for sub-100ms TTFB globally.

Tech Stack

Built With

Delivered in 10 weeks

Next.js

Full-stack framework & UI

Supabase

Multi-tenant DB, auth & RLS

Stripe

Subscription billing & customer portal

Vercel

Edge deployment & performance

Resend

Transactional emails & invites

Tailwind CSS

Design system & responsive UI

The Outcome

The platform launched in 10 weeks and hit 150 paying customers within 3 months, generating $18K MRR. The founder raised a $1.5M seed round off the back of the product. Architecture handles 10x current load with zero changes needed.