Browse categories
Explore
Fiverr Pro
English
$
USD
I will secure and fix your supabase, lovable, bolt and replit web app for production
Stanislav L.
About this gig
Your app works. That is not the same as being safe to put in front of other people.
WHAT I CHECK FIRST
Supabase row level security. In most apps built in Lovable, Bolt, Replit or Cursor there is none, so any logged in user can read every other user's records straight from the browser. The interface hides it. The database does not.
THE FULL LIST
- Who can read and write what, enforced in the database
- Secrets and api keys sitting in the frontend
- Endpoints that can be called in a loop with no rate limit
- Error messages leaking internal details to users
- What actually happens at a hundred concurrent users
- Changes being tested directly in production
WHAT YOU GET
A written report with severity levels and a fixed quote per finding, before any code is touched. Then the fixes, a staging environment, and an app that still looks exactly the same to your users.
WHY NOW AND NOT LATER
The moment you take a paying customer their data becomes your responsibility. Securing it first is a three day job. Doing it after a leak is not.
Send me the app link or the repository. First findings reach you within a day, the full report in three, and it is yours whether or not you continue.
Get to know Stanislav L.
Stanislav L.
Full Stack Developer and Security Engineer
- FromGreece
- Member sinceSep 2026
- Avg. response time1 hour
Languages
Ukrainian, Russian, English
I build products, and then I try to break them. That combination is why clients keep me around after launch.
Years of production software: React and Vue on the front, Python and Node behind them, PostgreSQL and Supabase underneath. A degree in cybersecurity, and years spent reading other people's code the way an attacker reads it.
Most of my work is now one of two things. Building an MVP that will not embarrass you on launch day, or finding what is already wrong with one that exists.
Every engagement starts with a written scope and a fixed price.
My Portfolio
FAQ
Will you rebuild my app from scratch?
No, and you should be suspicious of anyone who suggests it by default. I keep what works and fix what is dangerous. Rewriting is proposed only when patching genuinely costs more.
Do you work with Lovable, Bolt, Replit and Cursor?
Yes, all of them, and with plain repositories. The platform matters less than what ended up in the database.
Can I keep building in the no code tool afterwards?
Usually yes, and I will tell you which parts are now safe to touch and which are not. Moving off the platform entirely is a separate job.
What if the report finds nothing serious?
Then you have a written statement saying so, which is worth having before you onboard paying customers. You keep the report either way.
How fast can you start?
Usually within a day. The check itself takes three days, and critical findings are sent to you as soon as they are found, not at the end.
Will my app go down while you work?
No. Fixes are made on a branch and a staging environment, then deployed once. That staging setup is part of the Standard package and stays yours.
