What We Do

Two Services. Done Right.

We don't try to do everything. We do two things extremely well — SaaS MVP Development and AI-Built App Cleanup. Both are built around the same core commitment: production-ready code, fixed price, weekly demos.

SaaS MVP Development

You have a SaaS idea and the domain expertise. We bring the full-stack technical execution. We build production-ready MVPs with everything a real app needs — not a demo, not a prototype. Something your users can actually sign up for, use, and pay for.

Starting at:$3,000
Typical Timeline:4–8 weeks

Tech Stack

React
Next.js
TypeScript
Node.js
MongoDB
PostgreSQL
Stripe
AWS
Vercel

What's Included

  • User authentication (sign up, login, email verification, password reset)
  • Stripe subscription billing with trial and plan management
  • Core feature set built to your spec
  • Admin dashboard and user management
  • Email notifications via Resend or SendGrid
  • Deployment on AWS or Vercel with staging environment

What You Get

  • Fixed price — you know exactly what you're paying before we start
  • Weekly demos — you see progress every 7 days
  • Clean, documented code you can hand off to any developer
  • Production deployment included — not just a local build

AI-Built App Cleanup & Scaling

You built something with Bolt, Lovable, v0, or Cursor. It looked great in the demo. Then real users showed up — and the app broke. No error handling, no security, auth edge cases failing, database grinding to a halt. We fix that.

Starting at:$2,000
Typical Timeline:2–4 weeks

Tech Stack

React
Next.js
TypeScript
Node.js
PostgreSQL
MongoDB
Docker
GitHub Actions
Vercel
AWS

What's Included

  • Code audit and vulnerability assessment
  • Error handling throughout the full stack
  • Backend input validation and sanitization
  • Authentication hardening (token refresh, session management, rate limiting)
  • Database query optimization and indexing
  • CI/CD pipeline with automated tests
  • Error tracking (Sentry) and structured logging
  • Production deployment with staging environment

What You Get

  • Start with a free 15-minute code audit — no commitment required
  • Fixed-price engagement — you know the full scope upfront
  • Your existing UI preserved — we improve the internals, not the look
  • Staging environment setup so you can test before every deployment

Not Sure Which Service You Need?

Book a free 30-minute call. We'll listen to your situation and tell you honestly whether you need an MVP build, an app cleanup, or something else entirely.

Book a Free Discovery Call
MVP Development & AI App Cleanup Services — HashBuilt | HashBuilt