I will fix reactjs nodejs errors and mern stack bugs


Acerca de este Servicio
Are breaking bugs, failing API routes, or crashing database connections halting your MERN stack application? Don't let technical glitches hurt your user experience or delay your deployment.
I am a technical software engineer specializing in JavaScript environments, ready to jump into your codebase, run deep diagnostics, and deliver clean, well-tested code fixes.
What I Can Fix For You:
Frontend Glitches: React.js state management errors, broken hooks, responsive UI/CSS layout issues, and component crashes.
Backend Server Failures: Node.js/Express.js errors, unhandled promise rejections, and failing routing logic.
Database & API Issues: MongoDB schema errors, slow aggregation queries, validation failures, and REST API bottlenecks.
Secure Logic Failures: Authentication bugs, JWT expiration token issues, middleware locks, and unauthorized access flags.
Why Work With Me?
Structured Clean Code: I fix the root cause and keep your architecture clean.
100% Satisfaction Guarantee: If the bug isn't fixed to your criteria, you get a full refund.
Please message me with your error log BEFORE placing an order so we can confirm repository access. Let's fix your app!
Respeta los derechos de terceros
Recuerda que incluir temas, plantillas o cualquier otro elemento que viole los derechos de terceros o las leyes aplicables en los trabajos entregados va en contra de las políticas de Fiverr. Puedes ver más información en Guía para la creación digital responsable.
Conoce a M Suman Kumar
Full Stack MERN Web Developer
- DeIndia
- Miembro desdeene 2026
Idiomas
Telugu, Hindi, Inglés
Mi porfolio
FAQ
What kind of bugs can you fix?
I can fix React.js, JavaScript, Node.js, Express.js, MongoDB, API integration, authentication, routing, responsive UI, CSS, deployment, and performance-related issues.
Do I need to contact you before placing an order?
Yes. Please contact me first so I can review your issue, estimate the required work, and recommend the most suitable package.

