You vibe-coded your way to revenue.

AI tools got you to market. I make sure your codebase can handle what comes next.

api/auth.js

// TODO: "fix later"
app.post("/login", async (req, res) => {
  const { email, pass } = req.body
  const user = await db.query(
    `SELECT * FROM users
     WHERE email = '${email}'`
  )
  if (user && pass === user.password) {
    const token = jwt.sign(
      user, "s3cret_key_2024!"
    )
    res.json({ ok: true, token, ...user })
  }
})

You built this with Cursor. Or v0. Or Claude. Maybe all three. And it works: customers are paying, revenue is growing.

But you’re scared to push updates. A bug you fixed last week is back. Your codebase has outgrown anyone’s full understanding. And somewhere in the back of your mind, you know: this thing wasn’t built to scale.

You didn’t do anything wrong. You moved fast, and that was the right call. But now the product is making real money, and the foundation needs to catch up.

That’s what I do. I go deep into the codebase, find what’s actually broken, and fix it.

I do two things.

Both at a fixed price. No hourly billing, no open-ended scope.

The Audit

$2,500

5–7 business days

I spend a week inside your codebase. You get a written report that tells you exactly what’s fragile, what’s fine, and what to fix first. Plus a walkthrough call so nothing gets lost in translation.

Written report with risk matrix
Prioritized action plan
60–90 min walkthrough call

Not a code review. A diagnosis.

The Fix

$8,000–$25,000

2–6 weeks

I fix the critical issues myself. Tests, security, infrastructure, architecture. You get working code via pull requests, not a slide deck full of recommendations.

Production-ready code fixes
Test coverage for core logic
CI/CD and security hardening
Handoff documentation

Working code, not advice.

I’m Yannik.

I co-founded Polygon One, a compliance platform used by German enterprise clients. I’ve shipped production systems across the full stack, from LLM pipelines to infrastructure.

I use Claude Code and Codex every day. I build with these tools, which is exactly why I know where the generated code breaks down.

I don’t add features, sell hours, or write slide decks. I make your codebase ready for whatever comes next.

Let’s talk about your codebase.

30-minute call, free. If I can’t help, I’ll tell you.

Or email: hi@yannikhampe.dev