I will fix react next node express and mongodb bugs


About this gig
About This Gig
Are you facing bugs, errors, broken functionality, deployment issues, authentication problems, or performance issues in your React.js, Next.js, Node.js, Express.js, or MongoDB application?
You are in the right place.
I am a Full Stack MERN Developer specializing in React.js, Next.js, TypeScript, Node.js, Express.js, MongoDB, Redux Toolkit, RTK Query, Authentication & Authorization, and REST API Development.
I build and fix modern, scalable, and high-performance web applications using clean code and best practices.
What I Can Fix
- React.js & Next.js bugs
- Node.js & Express.js API issues
- MongoDB database problems
- Authentication & JWT issues
- Redux Toolkit problems
- REST API integration errors
- Deployment issues (Vercel, Netlify, VPS)
- Performance optimization
- Responsive design issues
What You Get
- Clean and maintainable code
- Fast bug fixing
- Secure authentication systems
- Optimized backend & database
- Responsive UI fixes
- Error-free deployment support
Why Me?
- Fast delivery
- Clear communication
- Scalable solutions
- Production-ready code
- Long-term support
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 MARN STACK
Full Stack Developer Building Business Ready Websites
- FromBangladesh
- Member sinceMar 2023
- Avg. response time1 hour
- Last delivery3 years
Languages
English, Arabic, Irish, Russian
FAQ
Can you fix urgent bugs?
Yes

