I’m a software developer in Sydney, and I fix apps built with AI tools like Lovable, Replit and Bolt. I start by checking the app for security and data problems, then rebuild it properly, using your prototype as the specification.

If your app mostly works but each new prompt seems to break something else, that’s a good point to bring in a developer.

Who I am

I’m Eddie. I’ve been a software developer for over 20 years, and I run heyedd softwares from Sydney. I build websites, web apps and phone apps for Australian businesses, and I run my own apps in production.

Working with someone in Australia helps on a project like this. We’re on Australian time. You deal with an Australian business. And your data can be hosted in Australia if that matters to your customers.

What I check first

I start by reading the code and running the app. Then I write down what’s missing, in order of risk:

  • Can one user see or change another user’s data?
  • Are secret keys sitting in the browser code or in the repository?
  • Where is the data stored, and is it backed up?
  • What happens when two people use it at the same time?
  • Do sign-up and password reset emails actually arrive?
  • Will you know when something fails?

We go through that list together and decide what to fix first.

What happens to your prototype

I usually rebuild the app in a cleaner, more modular shape, often in React, so new features stop breaking old ones.

Your prototype isn’t wasted. It’s an exact specification of what the app needs to do and look like. Getting that right is usually about a third of the effort, and you’ve already done it.

How we can work

  • Contract work to get the app live properly. See contract development.
  • Ongoing development after launch, as you add features.
  • If the app is the business, a longer partnership. See technical founder.

FAQ

Do you only work with businesses in Sydney? No. The work is done remotely, so anywhere in Australia works.

What do you need from me to start? A link to the app, access to its code, and a few lines on what it’s for and who uses it.

Will you fix it or rebuild it? Usually rebuild. The prototype shows exactly what the app should do and look like, so the rebuild has a clear specification.

Have an AI-built app that needs a developer?

Send me a link to it and a few lines on what it's for.

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