I will debug and fix full stack web application issue


Over deze dienst
I will help debug, fix, and optimize issues in your React.js, Next.js, Node.js, or MERN stack application.
Whether you are facing frontend bugs, backend API issues, responsive design problems, authentication errors, or deployment-related issues, I can help identify and resolve them efficiently.
With 1.5 years of hands-on development experience, I have worked on SaaS, healthcare, education, entertainment, and gaming-related projects involving both frontend and backend development.
Services I Can Help With
- React.js / Next.js bug fixing
- Node.js / Express.js backend issues
- API integration and debugging
- Responsive UI fixes
- Authentication and routing issues
- Redux / Context API state issues
- Database/API connection troubleshooting
- Performance optimization
- Deployment and environment configuration
- Full-stack MERN application debugging
I focus on writing clean, maintainable solutions while ensuring your application works smoothly and efficiently.
Please contact me before placing an order so we can discuss the issue and scope properly.
Respecteer de rechten van derden
Let erop dat het tegen het beleid van Fiverr voor freelancers is om thema's, templates of andere elementen in het geleverde werk op te nemen die inbreuk maken op de rechten van derden of toepasselijke wetten. Lees er meer over in onze Gids voor verantwoorde digitale creatie.
Maak kennis met Haseeb
AI Full Stack Developer
- Afkomstig uitPakistan
- Lid sindsjan 2023
- Gem. reactietijd1 uur
Talen
Urdu, Engels
Mijn portfolio
Veelgestelde vragen
What kind of bugs can you fix?
I can help with frontend, backend, API integration, authentication, responsive design, routing, deployment, and MERN stack-related issues.
Do you work on existing codebases?
Yes, I can work on existing React.js, Next.js, Node.js, and MERN stack applications.
Can you fix API or backend-related issues?
Yes, I have experience working with REST APIs, Node.js, Express.js, and backend integrations.
Can you optimize application performance?
Yes, I can help identify and resolve performance bottlenecks and improve frontend responsiveness and application behavior.
Do you provide responsive design fixes?
Yes, I can fix layout, responsiveness, and UI-related issues across desktop, tablet, and mobile devices.

