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I will build your saas mvp with nextjs fastapi and stripe billing
Gianpaolo
About this gig
Launch your SaaS MVP in days, not months.
You have an idea and users waiting. I build the working core: a Next.js frontend, a FastAPI backend, a PostgreSQL database and secure login, deployed and ready for real users. Stripe subscription billing is available on request.
What you get:
- User authentication: email and Google login, secure on every device
- User dashboard: a clean, responsive interface where users manage their account
- PostgreSQL database with a schema you can extend as your product grows
- Email notifications: welcome and password reset emails
- Automated tests and CI, so new changes do not break what already works
- Live deployment on Vercel and Render
This is not a template. It is a working application configured for your product, with clean, commented code that any developer can continue.
Have a question before ordering? Send me a message and I will reply within 12 hours.
Get to know Gianpaolo
Gianpaolo
Full Stack Developer specialised in SaaS and AI automation
- FromItaly
- Member sinceJun 2026
- Avg. response time8 hours
- Last delivery1 week
Languages
English
Most web apps fail not because of bad ideas, but because the foundation breaks
under real users — payments that glitch, auth that locks people out, automations
that stop working after a week.
I build the parts that have to work: payment systems that handle retries and
webhooks without breaking your database, auth flows that work on every device,
and AI agents that actually run reliably.
Response time: within 12 hours.
My Portfolio
FAQ
Do I need to be technical to use what you deliver?
No. Every delivery includes a written guide explaining how to log in, where the key files are, and how to make basic changes. You do not need to read code to use what I build.
Can another developer continue working on this after delivery?
Yes. The code follows standard Next.js conventions and is fully commented. Any developer familiar with Next.js can pick it up immediately.
What if something breaks after delivery?
Standard and Premium orders include a 7-day bug fix guarantee. If something I built stops working within that window, I fix it at no charge.
Do you need access to my accounts?
For deployment, temporary access to your hosting account is needed. For payments, only the API keys are required. Credentials are never stored and access is removed after delivery.
Do I need to own a domain and hosting?
No. I can deploy your app on Vercel and Render, which have free plans to start with. A custom domain is optional: you can launch on a free address and connect your own domain later, and I will show you how.
