I will build your saas mvp with auth, payments and a working database

F
fabi_ai_labs
F
fabi_ai_labs
Fabi
build your saas mvp with auth, payments and a working database
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build your saas mvp with auth, payments and a working database
Full Screen
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build your saas mvp with auth, payments and a working databasebuild your saas mvp with auth, payments and a working databasebuild your saas mvp with auth, payments and a working database

About this gig

Most MVP gigs deliver a clickable prototype and call it a product. It looks right in a demo and falls apart the moment a second user signs up.


I build the version that survives real users.


What that means in practice:


  • Real auth with sessions, password reset and email verification, not a fake login
  • A Postgres database designed properly, so your data still makes sense in month six
  • Stripe subscriptions wired correctly, including the webhook nobody remembers
  • Row level security, so one customer cannot read another customer's data
  • Deployed and running, not a zip file you have to figure out

Stack is Next.js, TypeScript, Postgres and Supabase or your own backend. You get the full source code and no lock in.


I will also tell you what to cut. Most MVP briefs contain two features that should ship in version three, and cutting them is usually what gets you launched.


Send me what you want to build and who it is for. If it is not a fit I will say so before you order.

  • Programming language

    • TypeScript

  • Expertise

    • Performance
    • Security
    • Design
    • Databases
    • Source control

  • Frontend framework

    • Next.js
    • React.js
    • Tailwind CSS

  • Backend framework

    • Express.js
    • Next.js
    • Node.js
    • Supabase
    • Firebase

Get to know Fabi

Fabi

Software engineer building production MCP servers and AI systems

  • FromGermany
  • Member sinceApr 2026
  • Avg. response time1 hour

  • Languages

    German, English
Hey, I'm Fabi. Software engineer. I build production MCP servers that connect Claude and other LLMs to real APIs, databases, and internal tools. Typed, schema validated, both transports implemented, with the safety boundaries that stop an agent doing something expensive. Beyond MCP: TypeScript, Next.js, Postgres, self-hosted infrastructure. I built and run Lucid, my own AI companion with persistent memory and a health engine, and I ship client systems solo in days, not quarters. Tell me what you need built.

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