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USD
I will fix nextjs, react and nodejs bugs, errors, build and vercel issues fast
Saikat
About this gig
Is your Next.js, React or Node.js app crashing, throwing errors, or failing to deploy? I'll find the root cause and fix it. Fast, clean and tested.
WHAT I FIX:
- Next.js: hydration errors, routing, API routes, SSR, build errors
- React: hooks, state issues, re-render loops, UI bugs
- Node.js / Express: crashes, API & CORS errors, JWT/OAuth auth
- TypeScript type and compile errors
- Vercel / Netlify deployment and env variable failures
- AI-generated code (ChatGPT, Cursor, Lovable) that doesn't work
HOW IT WORKS:
1. Send me the error message + code or repo link
2. I confirm I can fix it, before you order
3. I fix the root cause and test it
4. You get working code + a short explanation of what broke
WHY WORK WITH ME:
- Fast: most bugs fixed within 24 hours
- Clear communication, no confusing jargon
- Your code stays 100% confidential
- If I can't fix it, I'll tell you upfront
Message me first with your error and I'll reply with a plan and the right package.
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 Saikat
Saikat
Kumar
- FromBangladesh
- Member sinceMay 2021
Languages
English
Welcome to my profile🙏
Struggling with a slow website, broken features, or an idea that’s hard to turn into a real product?
I’m Saikat Kumar Mondal, a Full Stack Developer helping businesses build fast, reliable, and modern web applications.
• React.js, Next.js & TypeScript
• Node.js, Express.js & REST APIs
• PostgreSQL, MongoDB & Prisma
• AI/LLM integrations
• API & third-party integrations
• Bug fixing & performance optimization
I focus on clean code, clear communication, and practical solutions.
Have a project in mind? Message me and let’s build it together.
My Portfolio
FAQ
What information do you need before I place an order?
Please share the error message, a screenshot, or your GitHub repo access. If it's a live bug, a link to the page where it happens also helps. This lets me estimate the time and fix it faster.
Do you fix bugs in projects you didn't build?
Yes. I regularly fix bugs in Next.js, React, and Node.js projects built by other developers. I'll review your codebase first to understand the structure before making changes.
What if the bug is more complex than expected?
Yes. Each package includes free re-checks if the same bug reappears within the delivery
Do you provide support after the bug is fixed?
Yes. Each package includes free re-checks if the same bug reappears within the delivery period. Premium package buyers get extended support as listed in the package.
Can you fix TypeScript errors that are blocking my build?
Yes, TypeScript build errors are one of the most common issues I fix — including type mismatches, strict mode errors, and third-party package type conflicts.
Do you also fix database or API-related bugs?
Yes. I handle bugs related to Prisma, MongoDB, PostgreSQL, and API integration issues, including connection errors and broken endpoints.
