I will perform web security testing and vulnerability assessment

Here's an SEO-optimized Fiverr gig description for your "I will fix bugs in React Node JS Flutter and MERN apps" gig.

Fix Bugs in React, Node.js, Flutter & MERN Applications

Are you facing errors or unexpected issues in your React, Node.js, Express, Flutter, or MERN application? You're in the right place!

I'm Shivam Singh, a Full Stack Developer and Co-Founder of Quinckle, with experience building and maintaining production-ready web and mobile applications. I provide fast, reliable, and clean bug-fixing services to get your project back on track.

What I can fix:

React.js errors and UI bugs

Node.js & Express backend issues

REST API integration problems

MongoDB & PostgreSQL database issues

Prisma ORM errors

Flutter app bugs

Authentication & JWT issues

Performance optimization

Deployment and server errors

General JavaScript & TypeScript debugging

Why choose me?

Clean and maintainable code

Fast response and communication

Secure and efficient solutions

Thorough testing before delivery

On-time delivery

Whether it's a small bug or a complex issue, I'll work to resolve it efficiently and keep you updated throughout the process.

Please contact me before placing an order so I can understand