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I will fix any bugs in your mern stack mongodb express react node app
WaseemStackAI
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About this gig
Is your MERN stack (MongoDB, Express.js, React.js, Node.js) application throwing errors, crashing, or not working as expected? You're in the right place.
I'm a MERN stack developer who specializes in finding and fixing bugs fast without breaking your existing code or charging you for a full rebuild.
What I fix: - React errors (state issues, re-render problems, broken components, hooks errors) - Node.js / Express.js backend bugs (API errors, server crashes, middleware issues) - MongoDB / Mongoose issues (queries not working, schema errors, connection problems) - Authentication & JWT bugs - CORS errors - Deployment errors (Render, Vercel, Netlify, Heroku, VPS) - Console errors and broken functionality of any kind ️ How I work: 1. Send me your code (GitHub repo or zip) and describe the bug. I investigate the root cause, fix it, and test it thoroughly. You get clean, working code with a short explanation of what was wrong. Let's get your app working again fast after debugging.
Respect third-party rights
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Get to know WaseemStackAI
WaseemStackAI
I build AI chatbots that answer your customers at the spot
- FromPakistan
- Member sinceOct 2019
Languages
Urdu, English, Hindi
Every project(chatbot) I deliver:
→ Live on your website within 48 hours
→ Trained on your own business data
→ Works on mobile, desktop, and any website platform
→ Requires zero technical knowledge from you and saves your precious time
My technical stack:
JavaScript | Python | React | Node.js | OpenAI API | Gemini API |
Claude API | LangChain | REST APIs | MongoDB
I am the one who actually understands your business
problem before writing a single line of code.
📩 Message me with your business type and I'll tell you
exactly which AI solution fits you — before you spend anything.
FAQ
Q: Do I need to share my full codebase?
A: Only the relevant files/repo. A private GitHub repo link works great, or you can zip and share the project folder.
Q: What if you can't fix the bug?
A: This rarely happens, but if I genuinely cannot resolve it, you get a full refund — no questions asked.
Q: How fast can you start?
A: Immediately after you share the bug details and access to your code — most small bugs are fixed within a few hours.
