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$
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I will fix, secure and deploy your lovable, bolt, cursor or replit app
Anatolii S
About this gig
Your AI-built app works in the demo but breaks with real users? I make Lovable, Bolt, Cursor and Replit apps reliable, secure and ready to launch.
Senior full-stack engineer: 13+ years, 150+ delivered projects, 5.0 rating, zero negative reviews.
What I fix:
- Build and deployment errors (Vercel, Netlify, Render, VPS)
- Broken login and auth, Supabase RLS and database issues
- Exposed API keys and other security holes
- Stripe payments and webhooks that fail silently
- Crashes, slow pages and code the AI keeps re-breaking
How it works:
1. You share the repo and describe the problem
2. I audit first and confirm the scope before changing anything
3. I fix in a separate branch and test every change
4. You get a short report: root cause, what changed, what to watch
Stack: React, Next.js, Vite, TypeScript, Supabase, Firebase, Node.js, Python, Stripe, Docker.
Your code stays yours, and you can keep building with your AI tool afterwards.
Not sure which package fits? Message me the issue and I'll recommend one.
Get to know Anatolii S
Anatolii S
AI and Bot Engineer: AI agents, n8n automation, Telegram bots, 13 years
- FromGermany
- Member sinceJan 2023
Languages
Ukrainian, Russian, English, German
I take on challenges others avoid.
Senior engineer with 13+ years and 150+ delivered projects: 5.0 rating, zero negative reviews, ranked #1 in bot development and #1 in AI & ML on a leading Ukrainian freelance marketplace.
What I build: AI agents and RAG chatbots with memory, n8n automations, Telegram bots and Mini Apps with payments. I also fix and harden vibe-coded apps (Lovable, Bolt, Cursor) for production.
Python, TypeScript, React, Next.js, Node, FastAPI, Docker. Clear scope, honest reports, code you own. Based in Germany (CET).
My Portfolio
FAQ
Which AI builders and stacks do you work with?
Lovable, Bolt.new, Cursor, Replit, v0, Windsurf and Base44 projects, plus hand-written code. Typical stacks: React, Next.js, Vite, TypeScript, Supabase, Firebase, Node.js, Python and Stripe.
What do you need from me to start?
Access to the code (GitHub repo or a project export), a short description of the problem with steps to reproduce, and a test login if the bug is behind auth. Production keys are only needed for deployment tasks.
Will you rewrite my whole app?
No. I fix the root cause with the smallest safe change and keep your structure. If a part truly needs a rewrite, I explain why and quote it before doing anything.
What if the problem is bigger than the package?
I audit first. If the real scope is larger, I tell you before starting and send a custom offer. You never pay for work you didn't approve.
Can I keep using Lovable or Cursor after your fixes?
Yes. I work in a separate branch, keep the code readable and leave notes, so your AI tool and future developers can continue from there.
Do you sign an NDA?
Yes. Your code and data stay private and are used only for your project.
