Contact person: Online quoting and invoicing webapp

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Location: Mthatha, South Africa

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I have an MVP of a web-based quoting and invoicing platform aimed at South African SMEs (link will be shared with the nominated developer). Some basic elements (quoting/invoicing to pdf, customer and product management) are in place and Supabase already hosts the database, but the email-and-password authentication flow is still unreliable. I need someone to stabilise that flow end to end—sign-up, verification, login, password reset and secure session handling—using Supabase’s built-in auth.

Immediately after that, I want a fully functioning paywall powered by Paystack. My use case goes beyond simple “pay now” buttons: users must be able to start on a free tier, upgrade to paid, manage their own billing details within the dashboard, and have the app check plan status before granting access to premium features.

Once the security and payments foundation is solid, the next milestone is to extend the product into a lightweight accounting suite. The first feature blocks are expense tracking, financial reporting and more robust client and product management (basic already exists in the MVP). I already have UI wireframes; you would wire them up to the Supabase schema you help refine.

Deliverables I can test against:
• Robust Supabase email/password auth with JWT or session persistence working across refresh.
• Paystack-backed paywall that locks and unlocks features based on plan status, including webhook handling for renewals and failed payments.
• Database schema updates and initial API endpoints for expenses, clients, financial reports and products, each with at least one working screen or endpoint to prove the concept.
• Clear README or Loom walkthrough so I can reproduce the setup locally and on production.

If you’ve shipped Supabase auth and handled Paystack webhooks before, you’ll feel at home here." (client-provided description)