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Fiverr Pro
English
$
USD
I will update, customize, and fix bugs on your website
Full Stack Web Developer React Nextjs Nodejs
I build modern full-stack web applications using React, Next.js, Node.js, Express.js, Tailwind CSS, and MongoDB. I specialize in responsive websites, landing pages, dashboards, API integration, authen...
About this Gig
Are you facing issues with your Node.js, Express.js, TypeScript, MongoDB, or MySQL backend? I provide professional backend debugging and API troubleshooting services to help you quickly identify and resolve technical problems in your application.
With experience in JavaScript and TypeScript-based backend development, I can assist with:
- Node.js & Express.js bug fixing
- TypeScript error resolution and backend debugging
- REST API development, debugging, and optimization
- MongoDB connection, schema, aggregation, and query issues
- MySQL database design, queries, joins, and integration fixes
- Authentication, JWT, and session troubleshooting
- Middleware, routing, and server-side error resolution
- Database integration and backend stability improvements
- Basic backend performance and API response optimization
I focus on delivering clean, maintainable, and production-ready solutions rather than temporary fixes. Every issue is carefully analyzed to identify the root cause, ensuring your backend remains stable, scalable, and easier to maintain as your application grows.
Whether you are working on a web application, admin dashboard, SaaS platform, Express API, TypeScript backend, MongoDB-based system,
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FAQ
What information do you need before starting?
Please share your project source code or GitHub repository, a brief description of the issue, any error messages or screenshots, and the expected behavior of the application. This helps me identify the problem quickly and provide an accurate solution.
Which technologies do you support?
I work with Node.js, Express.js, TypeScript, MongoDB, MySQL, REST APIs, JWT authentication, middleware, routing, and backend database integrations. I can also assist with debugging existing JavaScript or TypeScript backend applications.
Can you fix deployment or server-related backend issues?
Yes. I can help diagnose API failures, database connection issues, environment configuration problems, authentication errors, and backend performance-related issues. Please contact me first for deployment-specific problems so I can review the environment details.
Will you explain the issue after fixing it?
Absolutely. I provide a clear explanation of the root cause and the changes made so you can better understand the problem and avoid similar issues in the future. My goal is to deliver a maintainable and reliable solution, not just a temporary fix.
What if my issue is larger than the selected package?
For complex applications, multiple interconnected bugs, or large-scale backend refactoring, please send me a message before placing an order. I will review the requirements and recommend the most suitable package or a custom offer based on the scope of work.
