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Fiverr Pro
English
$
USD
I will audit your backend architecture, database access and secrets
Oleg
About this gig
The first real question your backend gets is not how fast it is. It is whether one user can reach another user's data by changing a number in a URL.
I'm a founder, not an agency. I built and shipped a production backend with AI assistance: an Express API, separate dev and prod databases, role based access, live Stripe and store payments verified server side. I hit every one of these problems myself before a user did.
You get a written report, not a call. Each finding says what is wrong, what an attacker or a bug would get out of it, and how long the fix takes. The report is yours either way.
WHAT I LOOK AT
Who can read and write which rows, at the API and at the database. Access rules that live only in frontend code. Dev and prod sharing one database or one set of keys. Secrets in the repo or shipped to the client. Service boundaries that let one broken endpoint expose everything.
HOW IT WORKS
You send read access to the repo, or a deployed URL and two test accounts so I can check one user against another. I read the code, reproduce what I find, and send the report. Everything async, in writing, no calls.
Message me with your stack before you order.
Get to know Oleg
Oleg
I fix AI built products that break in production, backend, auth, payments
- FromMexico
- Member sinceApr 2026
Languages
Russian, Spanish, English
I'm a founder, not an agency. I built and shipped a production product with AI assistance: a Next.js web app with live Stripe, an Express backend, and a mobile app in both stores with Apple IAP and Google Play Billing verified server-side.
So I know which parts of an AI-built product go first: auth, data access rules, and anything near payments.
What I do is written audits and the fixes that follow. Everything async, in writing, no calls.
The product is a healthtech platform in Mexico - medical data under consent rules, signed DPAs and store compliance are part of my day job.
FAQ
Do you fix what you find, or only report it?
This gig is the report. Fixes are a separate fixed price job, scoped from the report itself. The report is useful to you or to any other developer either way.
Can you do this without repo access?
Partly. With a deployed URL and two test accounts I can test access rules from the outside, but env isolation, secrets and service boundaries stay a guess without the code.
I built this with AI and never wrote backend code. Is that a problem?
No, that is the normal case here. The report is written so a non technical founder can act on it and hand it to a developer.
