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I will fix next js bugs build errors and vercel deployment issues
Zubair Ahmad
About this gig
Is your React or Next.js app failing to build, deploy, or work correctly in production?
I diagnose and fix issues in existing React, Next.js, JavaScript, and TypeScript applications, with a focus on clean fixes and tested results.
I can help with:
- Next.js build and deployment errors
- Vercel production failures
- Hydration, SSR, and rendering issues
- React component, state, and runtime bugs
- TypeScript errors
- Routing and App Router problems
- API and form issues
- Authentication and session bugs
- Environment-variable and configuration errors
- Responsive UI and Tailwind CSS issues
You receive:
- Root-cause diagnosis
- The agreed code fix
- Testing of the affected flow
- Updated source code
- A clear summary of what was fixed
This Gig is for fixing existing applications. Full website development, major redesigns, large refactors, and unrelated feature work require a custom offer.
Send the error, expected behavior, screenshots or logs, live URL, and repository access before ordering.
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Get to know Zubair Ahmad
Zubair Ahmad
Web Mobile and AI App Developer
- FromPakistan
- Member sinceApr 2026
- Last delivery4 months
Languages
Urdu, English
I build, fix and improve modern web and mobile applications using React, Next.js, TypeScript, React Native and Expo.
I specialize in debugging existing apps, fixing broken user flows, authentication, API integrations, responsive UI, Supabase/Firebase issues, build errors and Vercel deployments.
I have worked on SaaS products, e-commerce platforms and mobile apps, and I also troubleshoot AI-built apps created with tools like Lovable and Bolt. I focus on clear scope, clean code, tested changes and reliable delivery.
My Portfolio
FAQ
What counts as one bug?
One bug is one clearly reproducible issue with one root cause, such as a broken button, console error, incorrect layout, failed API request, or build error.
What do you need before starting?
Please provide the actual and expected behavior, steps to reproduce, screenshots or error logs, framework version, and repository or ZIP file.
Can you fix backend problems?
I can fix backend-related issues when they are directly connected to the React or Next.js app, such as API errors, authentication, Supabase/Firebase integration, or server-side logic. Large backend systems or unrelated backend development require a custom offer.
Can you fix Vercel deployment failures?
Yes. I can investigate build errors, environment-variable problems, dependency conflicts, routing failures, and production-only errors.
What if the issue is larger than the selected package?
I will explain the scope before starting and recommend the correct package or send a custom offer. No additional work will be added without agreement.
Can you fix Next.js build and hydration errors?
Yes. I can troubleshoot build failures, hydration mismatches, App Router issues, server/client component errors, environment variables, and production-only errors.
