Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix next js bugs, react hydration errors, and API issues within 24 hours
Madusanka
About this gig
Are you struggling with annoying bugs in your Next.js or React application? Dont let technical debt slow down your business.
I am a Professional Software Engineer with 1+ years of industry experience in full-stack development. I specialize in identifying and fixing complex Next.js issues quickly and efficiently.
What I can fix for you:
- Next.js Specific: App Router issues, SSR/SSG errors, and Middleware problems.
- Hydration Errors: Fixing "Text content did not match" and other hydration mismatches.
- API & Backend: Node.js/Express API integration, Route Handlers, and Server Actions.
- Authentication: NextAuth.js or JWT implementation issues.
- UI/UX: CSS, Tailwind CSS, and MUI responsive layout fixes.
- Performance: Improving Lighthouse scores and Core Web Vitals.
- Deployment: Fix Vercel/Netlify deployment errors.
Why choose me?
- Industry Experience: Worked as an Associate Software Engineer.
- Clean Code: I don't just fix the bug; I ensure the code follows best practices.
- Fast Delivery: Most bugs are fixed within a few hours.
- Communication: Quick responses and clear updates.
Please contact me before placing an order so we can discuss the issue and I can provide the best solution for you!
Get to know Madusanka
Madusanka
Full Stack Developer React, Next js, Node js, NestJS, AI Integration
- FromSri Lanka
- Member sinceDec 2025
Languages
Sinhala, English
I build fast, scalable, production-ready web applications and AI-powered features that deliver real results.
Final-year BSc IT undergraduate with real industry experience as an Associate Software Engineer.
What I offer:
- Full stack apps with React, Next.js, Node.js and NestJS
- Secure REST APIs with PostgreSQL, MongoDB and Firebase
- OpenAI and ChatGPT API integration into your web app
- ML applications built with Python and FastAPI
Clean code. Fast delivery. Clear communication.
Long-term support after delivery.
Message me before ordering. Let us build something great.
My Portfolio
FAQ
What information do you need to start?
I need a brief description of the bug, access to your GitHub repository (or source code), and login credentials if the issue is related to a specific environment or third-party service.
Can you fix Next.js Hydration errors?
Yes! Hydration mismatches are common in Next.js. I can identify why the server-rendered HTML differs from the client-side and fix it using best practices like useEffect or suppressing warnings where necessary.
Do you work with both App Router and Pages Router?
Absolutely. Whether your project uses the modern Next.js 13/14/15 App Router (Server Components) or the traditional Pages Router, I can debug and fix issues in both architectures.
Will you fix my Vercel or Netlify deployment errors?
Yes, I specialize in fixing build failures, environment variable issues, and runtime errors that occur during the deployment process on platforms like Vercel and Netlify.
Is my code safe with you?
Your privacy and code security are my top priorities. I only use the code to fix the bugs you specify, and I never share or reuse your proprietary logic or data.
Can you fix bugs in my Tailwind CSS or MUI styling?
Yes, I can fix responsive design issues, layout shifts, and component styling bugs using Tailwind CSS, Material UI (MUI), or standard CSS.
