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$
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I will fix and complete your unfinished vibe coded app or prototype
Mamun Abdullah
About this gig
Built a great-looking app in Lovable, Bolt, v0, or Replit
but it doesnt actually work yet?
Thats the #1 problem with vibe-coded apps:
Frontend is easy backend is missing.
Getting errors persistently
I will fix, complete, and upgrade your unfinished prototype into a real working application with proper backend logic, database integration, and deployment.
Fixes & Upgrades I Provide
- Debugging and feature completion
- Backend APIs + database connection
- Authentication (users, roles, login/signup)
- Payments and subscriptions (Stripe)
- AI features (ChatGPT, RAG assistants, agents)
- Deployment and production readiness
- Prototype launch-ready product
⭐ Perfect For
- Startup MVPs
- Lovable/Bolt prototypes
- Clients who want a real developer to finish the job
Message me first so I can review your project.
Lets make your app fully working.
Get to know Mamun Abdullah
Mamun Abdullah
AI and Full Stack Developer for Backend and Automation
- FromBangladesh
- Member sinceFeb 2018
- Avg. response time14 hours
- Last delivery6 months
Languages
Bengali, English, French, German
Hi, I’m Mamun Abdullah — a Level 1 Fiverr Seller & Full-Stack AI Developer.
I help startups and businesses turn ideas and prototypes into real working software products.
I specialize in building AI-powered applications, backend APIs, databases, automation workflows, RAG chatbots, Chrome extensions, and Shopify custom solutions.
If you have a UI built with Lovable/Bolt/v0 or an app idea that needs a complete backend, I can bring it to life fast 🚀
Message me anytime for free suggestions.
My Portfolio
Other Vibe Coding Services I Offer
FAQ
What is a vibe-coded app or prototype?
A vibe-coded app is usually built with tools like Lovable, Bolt, v0, Replit AI, or other AI coding platforms. These apps often have a great UI but may be incomplete or missing backend functionality.
Can you fix apps built with Lovable, Bolt, or v0?
Yes! I specialize in fixing and completing unfinished projects from Lovable, Bolt, v0, Base44, Replit, and similar tools.
What kind of issues can you fix?
I can help with bugs, broken features, missing backend logic, database connection, authentication, payment integration, AI features, deployment errors, and more.
Can you add backend and database to my existing frontend?
Absolutely. I can build and connect backend APIs, databases (Supabase, Firebase, Postgres, MongoDB), and make your prototype fully functional.
Do you provide AI integration like ChatGPT or RAG?
Yes. I can integrate AI features such as ChatGPT API, document Q&A (RAG), AI agents, automation workflows, and more.
Will you deploy the app after fixing it?
Yes, I can assist with deployment on platforms like Vercel, Render, AWS, VPS, or your preferred hosting.
Do I need to message you before placing an order?
Yes, please message me first so I can review your project, understand the scope, and recommend the best package.
What do you need from me to get started?
You just need to share your project link or code (GitHub/export), explain what’s not working, and describe the features you want completed. You can also share your idea.
