I will fix react, node js and mern bugs

K
karlygash_web
K
karlygash_web
Karlygash
fix react, node js and mern bugs
Full Screen
fix react, node js and mern bugs
Full Screen
Full Screen
fix react, node js and mern bugsfix react, node js and mern bugsfix react, node js and mern bugs

About this gig

Got a broken React component, server error, or database bug ruining your web app? Im here to debug and fix it fast.


I specialize in troubleshooting and refactoring MERN stack applications (React, Node.js, Express, MongoDB). Instead of waiting days for an agency to respond, you get direct developer support and quick code repairs.


What I can fix for you:

Frontend: React state bugs, Tailwind UI fixes, broken layouts, and responsive issues. Backend: Node.js/Express REST API errors, CORS problems, and MongoDB query issues. Logic & Integrations: JWT authentication, non-working forms, and Telegram bot notification bugs.


Why choose my gig?

Fast Turnaround: Quick diagnosis and clean, well-commented code.

Root Cause Repair: No temporary hacks I fix the actual underlying code issue.

High Focus: I'm building my reputation on Fiverr, so every single fix gets my 100% attention to earn your 5-star review.


Message me before placing an order with a brief description of the bug!

  • Platform

    • Custom

  • Website type

    • E-Commerce store
    • Business
    • Landing page
    • Saas

  • Programming language

    • JavaScript
    • HTML & CSS
    • React
    • Other
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 Karlygash

Karlygash

Full Stack React and Node js Developer

  • FromKazakhstan
  • Member sinceJul 2026

  • Languages

    Russian, Kazakh, English
Backend & Full-Stack Developer | Node.js • Express • MongoDB • React Focused Backend Developer specializing in scalable server-side applications, clean API design, and automation. How I can help: • Telegram Bots: Interactive bots with database integration and custom admin panels. • RESTful APIs: Secure, optimized endpoints with clean architecture. • Database Management: Schema design and efficient data handling in MongoDB. • Full-Stack & Integrations: React + Node.js workflows and API integrations. I deliver clean, documented code with clear README files. Let’s discuss your project!

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