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I will fix bugs errors and issues in react nextjs nodejs and express apps
Kavin
About this gig
Are you facing bugs, errors, or issues in your React, Next.js, Node.js, or Express.js application? You're in the right place!
I am a Full Stack Web Developer experienced in debugging and fixing frontend and backend applications. I can quickly identify the root cause of issues and provide clean, efficient, and scalable solutions.
Services I Offer:
- React.js Bug Fixes
- Next.js Error Resolution
- Node.js & Express.js Debugging
- API Integration Issues
- Authentication & Authorization Fixes
- Database Connection Problems
- CRUD Operation Fixes
- Performance Optimization
- Responsive Design Issues
- JavaScript & TypeScript Errors
- Deployment & Environment Configuration Fixes
Why Choose Me?
- Fast and Reliable Communication
- Clean and Maintainable Code
- Quick Issue Diagnosis
- Professional Development Practices
- On-Time Delivery
Before placing an order, please send me a message with details about your issue so I can review it and recommend the best package.
Let's get your application running smoothly!
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 Kavin
Kavin
Professional Full Stack Engineer React Nextjs Nodejs Expressjs Databases AI
- FromIndia
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English, Tamil
I am a Full Stack Web Developer passionate about creating modern scalable and high performance web applications. I specialize in React Nextjs Nodejs Expressjs MongoDB PostgreSQL and AI Integration. I build responsive websites custom web applications REST APIs landing pages and backend systems tailored to business needs. I also provide bug fixing troubleshooting performance optimization and API integration services. My goal is to deliver clean maintainable code reliable solutions fast communication and complete client satisfaction with every project.
My Portfolio
FAQ
What technologies do you support?
I support React.js, Next.js, Node.js, Express.js, JavaScript, TypeScript, MongoDB, PostgreSQL, and REST APIs.
Can you fix both frontend and backend issues?
Yes. I can troubleshoot and fix frontend, backend, API, authentication, database, and deployment-related issues.
How quickly can you fix my bug?
Simple issues can often be fixed within a few hours. Complex issues may require additional investigation and testing.
Do I need to provide source code?
Yes. Please provide the relevant source code or repository access so I can investigate the issue.
Can you fix deployment errors?
Yes. I can help with deployment issues on platforms such as Vercel, Render and Railway
What if you cannot fix my issue?
I will first review the problem before accepting the order. If the issue is outside the scope of the gig, I will inform you before proceeding.
Do you provide code optimization?
Yes. I can optimize existing code, improve performance, and suggest best practices where needed.
