I will fix your next js, nestjs or node js bugs, errors, and deployment issues in 24h

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Nafiz
fix your next js, nestjs or node js bugs, errors, and deployment issues in 24h
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fix your next js, nestjs or node js bugs, errors, and deployment issues in 24h
Full Screen
fix your next js, nestjs or node js bugs, errors, and deployment issues in 24hfix your next js, nestjs or node js bugs, errors, and deployment issues in 24h

About this gig

Your app is broken and you need it fixed fast. I get it. Let's solve it within a day.


I fix bugs, errors, and broken deployments for:

Next.js / React apps

NestJS / Express / Node.js backends

PostgreSQL / MongoDB database issues

Vercel, Railway, Heroku, VPS deployment failures

AI-generated apps (Lovable, Bolt.new, Cursor, Replit)

Authentication bugs (NextAuth, JWT, OAuth)

API integration errors (REST, webhooks, Stripe, etc.)


COMMON PROBLEMS I FIX DAILY:

"Module not found" / build errors

API returning 400/401/500 errors

CORS issues, broken auth flows

App works locally but fails on deployment

Lovable/Bolt app that stopped working after editing

Database connection errors


HOW IT WORKS:

1. Share your error message + codebase (or GitHub link)

2. I diagnose within 12 hours

3. Fix delivered with explanation of what was wrong


Average fix time: under 24 hours.

If I can't fix it, you don't pay.


Message me before ordering describe your bug and I'll tell you exactly if I can help.

  • Programming language

    • TypeScript

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Design
    • Databases

  • Frontend framework

    • Angular
    • Next.js
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Laravel
    • Express.js
    • NestJS
    • Next.js
    • Node.js

Get to know Nafiz

Nafiz

Providing custom websites, web Applications and web App solutions

  • FromBangladesh
  • Member sinceMay 2025
  • Avg. response time1 hour

  • Languages

    Bengali, English, Hindi
What if your web app could load 2× faster and keep users engaged longer? I help businesses turn ideas into fast, reliable, and scalable web applications that users love. With 2 years of hands-on experience and 20+ successfully delivered projects, I specialize in modern stacks like Next.js, Nest.js, TypeScript, PostgreSQL, MongoDB, Supabase, and AWS. My approach is simple: performance, scalability, and clean code. For example, I recently optimized a Next.js application with server-side rendering (SSR) and AWS hosting, cutting page load times by 50%, which significantly boosted user engagement

My Portfolio

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