I will fix react bugs, node js errors, and mern stack issues fast expert debugging

M
m_ahmad_tech
M
m_ahmad_tech
Muhammad Ahmad

About this gig

Stuck with bugs in your React, Node.js, or MERN stack app?

Components not rendering? Server crashing? MongoDB queries failing?


Don't let errors kill your project. I'll fix them fast.


I'm an Expert Full-Stack Developer specializing in React bug fixes, Node.js debugging, and MERN stack issues. Get fully tested, error-free code ready for deployment.


What I'll Fix:


React / Next.js: Component rendering, responsive design (Tailwind/CSS), hooks (useEffect/useState bugs), state management, React Router errors, performance lags.


Node.js / Express: Server crashes, API endpoint failures, middleware bugs, CORS issues, async/await errors.


MongoDB / Mongoose: Connection failures, schema validation, aggregation pipeline slowdowns, data not saving/fetching.


Integrations: Cloudinary uploads, Firebase/Clerk auth, Stripe payments, webhooks.


Deployment: Vercel/Netlify issues, environment config errors.


Why Me? (24h Turnaround)


Critical bugs fixed in 24 hours or less


Clean, scalable code not quick patches.


Full explanation + video walkthrough to prevent future issues.


Unlimited revisions + post-fix testing.


Message me your error log / repo link for a FREE 5-minute diagnosis.

Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Muhammad Ahmad

Muhammad Ahmad

Full Stack Developer Transforming Users Ideas into Production Ready Web Apps

  • FromPakistan
  • Member sinceDec 2025
  • Avg. response time1 hour
  • Languages

    English
Hi, I'm Ahmad, a Senior Full-Stack Developer with 4+ years of hands-on experience building production-ready web apps for startups and businesses. I Specialize in - Restaurant websites with online ordering - AI SaaS e-commerce Web - Secure Auth (JWT, RBAC) & Stripe integration - Bug fixing, performance optimization, and deployment Skills: React, Next.js, Node.js, Express, MongoDB, TypeScript, Clerk, Firebase. I don't just ship code—I build scalable, secure, and maintainable systems with clean architecture Proof: mahmaddev.vercel.app Let's build something amazing together. 🚀

My Portfolio

Other Website Maintenance Services I Offer