For founders who built on Lovable, Replit, Bolt or v0
You built it with AI. Now make it safe to run.
I close the security gaps, move everything onto accounts with your name on them, and leave you able to keep building on it. No rebuild required.
I'm Jonathan Wenger, a principal engineer with twenty years in the industry, including time at Microsoft. Keeping software standing up under real users is the unglamorous half of the job, and it's the half your app has never had.
- Ex-Microsoft
- Principal Engineer
- 20+ years
Symbiotic Security, June 2026. 172 of those apps allowed anyone to delete their data without logging in. This is the base rate for apps like yours, not a finding about yours specifically.
The problem
Your prototype works. But nobody has engineered it.
AI builders are very good at the part everyone assumes is hard, which is turning an idea into working software. What comes after that, when the thing has to survive real users and real money, was never their job.
- Nobody has checked who's allowed to read your database
- API keys sitting in code the browser can see
- Credits burn on fixes that break something else
- No way to test a change before real users get it
- Your business runs inside an account you don't control
How it works
Six steps, start to finish.
Typically two to four weeks, depending on what you built and how quickly you can answer questions.
Tell me what you've got
Fifteen free minutes on a call, or five questions online if you'd rather not talk to anyone yet. By the end of it I know what you built, what's live, and what is riding on it.
I look properly
This is the $750 report. I read the code, the database rules and the secrets myself, then tell you what is true about your app rather than what would be convenient for me to say, up to and including that you don't need me yet. It lands within 72 hours.
The accounts go in your name
GitHub, hosting, database, domain, secrets. Every one of them created under your login and your billing, so ownership is a fact about the setup rather than a promise from me.
Your app moves across
I migrate what you built instead of rebuilding it, then verify the result against a checklist the two of us agree on before anything moves. You know what finished looks like in advance.
The gaps get closed
Database access rules written and tested, every key and secret rotated, and staging separated from production so you can try a change before your customers meet it.
You learn to drive it
Claude Code set up on your own codebase, plus up to four working sessions in it with me. You finish able to keep building without me, which is the whole point of the exercise.
Before you hand over the keys
What I get access to, and what happens to it.
This work needs real credentials to your live application, which is a lot to ask of someone you met through an advert. So here is exactly how that is handled, in writing, before you have to decide anything.
You create the accounts, not me
GitHub, hosting, database, domain. Every account is opened in your name with your billing on it, and I am added as a collaborator you can remove in two clicks.
Every secret is rotated at handover
Any key I have seen is replaced before the engagement closes, including ones that were already exposed when I arrived. You end up holding credentials I have never had.
Nothing is subcontracted
One person does the work. Your code and your customer data are never passed to anyone else, offshore or otherwise, because there is nobody else to pass them to.
You can stop at any point
Revoke my access whenever you like and you keep everything produced up to that moment: the repository, the infrastructure, the runbook. None of it is held hostage to the invoice.
All of this goes in the engagement agreement, alongside a data processing agreement if your app holds personal data. Ask for both before you pay anything.
Pricing
Start small. Decide after.
Fixed scope and fixed price, agreed before anything starts. The report comes off the cost of the work if you go ahead.
- Security review of access rules, exposed keys and auth boundaries
- An ownership inventory covering code, repo, hosting, database, domain and secrets
- What is urgent, and what can safely wait
- A recorded walkthrough of your own codebase
- A fixed quote for the work, if you want it
- If there is nothing worth acting on, I say so and refund it
- Infrastructure set up under accounts you own
- Your app moved across and verified against an agreed checklist
- Database access rules written and tested
- Every key and secret rotated, then stored properly
- GitHub, CI/CD, and separate staging and production environments
- Claude Code set up on your codebase, with up to four working sessions
- Dependency and security patching
- Uptime and error monitoring
- An engineer on call who already knows your codebase
- Async support when you get stuck
- Quarterly review as you grow
If there is nothing to find, you don't pay. Some apps are in better shape than their owners fear. When the review turns up nothing worth acting on, I say so and refund the $750. Full pricing.
Why me
Senior engineering, without the agency overhead.
The work is done by one person, and it is the same person you spoke to on the call. Nobody sells you an engagement and then quietly hands it to a junior, because there is nobody to hand it to. What that buys you is judgement: knowing which of the things I find are worth your money this month, and which can safely wait until you have more users to justify them.
I'm not here to talk you out of AI
Building this way was the right call and you should carry on doing it. These tools got you a working product faster than hiring could have. What they leave behind is the engineering underneath, and that is the part I do.
No rebuild unless you need one
Most of what you've made is fine and it moves across intact. Where a piece of the code really does need rewriting, you'll hear it plainly and with a price attached, instead of discovering it halfway through.
You finish able to do it yourself
The walkthrough and the Claude Code sessions carry most of the value in this engagement. Being able to ship your own changes afterwards is what stops you needing me again in six months.
I'll tell you if you don't need me
Plenty of apps are in better shape than their owners fear. When yours turns out to be one of them, the report says so and your $750 goes back. That costs me a sale and buys something I would rather have.
Questions
The ones people actually ask.
If something you need to know isn't covered here, ask on the call. I would far rather answer it than leave you guessing at it.
No, and in most cases I would argue against it. The work takes what you already built, moves it onto infrastructure you own, and closes the gaps in it. Where part of the code really does need rewriting, that gets quoted separately so you can decide, rather than being folded quietly into a bill you already agreed to.
That is the point of the engagement. Your code, your GitHub repository, hosting, database, domain and secrets all end up in accounts created in your name, with you as the owner. I hold no key you cannot revoke in a minute without asking me first.
Yes. Those two are the most common by a distance, with Bolt and v0 close behind. Underneath the editor, these tools write fairly ordinary React and Node, which is exactly why moving your app across is realistic and a rewrite usually isn't.
Because it isn't the same job. A $600 migration copies your database from one host to another, which is a well-defined task and a fair price for it. This engagement also writes the access rules nobody ever wrote, rotates secrets that may already be in somebody else's hands, and spends real hours teaching you to run the result. If a straight database move is all you need, I'll say so on the call and point you at someone cheaper.
You might not need to, and I would rather you skipped it than resented it. If you are comfortable applying your own dependency updates, watching your own error rates, and being the person who gets up when something breaks at 2am, the engagement stands on its own without it. What the retainer buys is that I stay current on your codebase: security patches applied as they land rather than whenever you next look, monitoring that tells me before it tells your customers, and someone who does not need a week to remember how your app fits together. The founders who take it are usually the ones who do not want to be the only person alive who understands their own infrastructure. It starts after handover, and you can stop at the end of any month.
You'll know within the 72 hours the report takes, in plain language, ranked by what matters rather than by what sounds most alarming. What you do about it is your decision. Fixing it is quoted separately, so nothing arrives on an invoice you didn't agree to first.
We plan the cutover together and aim for no interruption at all. How close we get depends on your setup, mostly on the way your domain and database are configured, and I won't promise zero downtime before I have seen it. What I will do is tell you exactly what to expect before anything moves.
A senior engineer going through your app properly, with the report in your hands inside 72 hours. You get a written account of what you own and what is exposed, a recorded walkthrough of your own codebase, and a fixed quote if you want the work. It comes off the price of the engagement if you go ahead, and if there is nothing in there worth acting on you get the $750 back.
Pre-launch is the cheapest moment there will ever be to do this. No live users to migrate, and no incident to disclose if something was already wrong. Whether it is worth doing yet depends on how close you are to real customers, so ask me on the call and you'll get a straight answer either way.
Find out what you're actually running.
Fifteen minutes with the engineer who would do the work. If you don't need me yet, I will say so and tell you what to keep an eye on instead.