I will fix javascript errors fast and professionally

M
medcodes
M
medcodes
Mohamed B

About this gig

Are you facing errors or issues on your website?

I will quickly identify and fix bugs in your web application or website. Whether its a frontend JavaScript error, a backend Node.js issue, or an API not responding properly Im here to help.

I specialize in:

JavaScript bug fixing

React.js issues

Node.js & Express debugging

API integration errors

Login & authentication problems

Database-related bugs

Performance improvements

What you can expect:

Clean and structured code

Proper debugging and testing

Clear communication

Fast delivery

I focus on solving problems efficiently and making sure your application runs smoothly and securely.

Before placing an order, please contact me to discuss the issue.

Lets fix your website and get it working perfectly.

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 Mohamed B

Mohamed B

Secure Web Developer

  • FromMorocco
  • Member sinceFeb 2026
  • Languages

    Arabic, English, French
I’m a Full Stack MERN Developer with a strong background in Cybersecurity. I hold CompTIA Security+, CCNA, RHCSA, and eJPTv1 certifications, which allow me to build applications with security in mind from day one. I specialize in developing secure and scalable web applications using: • React.js • Node.js & Express • REST APIs • Authentication systems (JWT, secure sessions) Beyond development, I understand how attackers think. I can identify common web vulnerabilities such as XSS, SQL Injection, misconfigurations, and insecure authentication flows — and fix them properly.