I will fix bugs in javascript, react js, node js or mysql database

Z
zanelato
Z
zanelato
Joao Zanelato
fix bugs in javascript, react js, node js or mysql database
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fix bugs in javascript, react js, node js or mysql database
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fix bugs in javascript, react js, node js or mysql databasefix bugs in javascript, react js, node js or mysql databasefix bugs in javascript, react js, node js or mysql database

About this gig

Do you have a feature that isn't working, a layout that looks broken on mobile, or a console error that you just can't solve?

I am a Full Stack Developer specializing in JavaScript, React, and Node.js. I don't just "patch" the code; I analyze the root cause to ensure it doesn't happen again.

I can help you with:

1. Frontend Issues (React & UI):

  • Fixing broken layouts (HTML5, CSS3, Styled Components).

  • Debugging React Hooks (useState, useEffect, context errors).

  • Solving responsiveness issues on mobile devices.

  • Fixing API consumption errors (Axios/Fetch).

2. Backend & Logic (Node & JS):

  • Debugging Node.js and Express.js server errors.

  • Fixing JavaScript (ES6+) logic and syntax errors.

  • Resolving REST API routing and connection issues.

  • Database connection fixes (MySQL / SQLite).

Why choose me?

  • Fast Delivery: I understand that bugs need immediate attention.

  • Clean Code: I write organized code that is easy to maintain.


  • Clear Communication: I speak fluent English and native Portuguese.

️ IMPORTANT: Please message me BEFORE placing an order. Every bug is unique. I need to understand the issue to give you an accurate quote and timeframe.

  • Platform

    • Other

  • Website type

    • Other

  • Programming language

    • HTML & CSS
    • JavaScript
    • React
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Get to know Joao Zanelato

Joao Zanelato

FullStack Developer Student

  • FromBrazil
  • Member sinceApr 2023

  • Languages

    English, Portuguese, Spanish
Looking for a modern web expert? I am a Full Stack Developer specializing in React, Node.js, and SQL databases. I build interactive solutions, not just code. My experience includes developing complex Real-Time Apps with Live Chat (Socket.io), Voice Channels (WebRTC), and AI integration. I offer: Frontend: Responsive SPAs with React, Vite & Styled Components. Backend: Secure REST APIs, Node.js & Scalable Architecture. Reliability: Clear communication & deadline focus. 🇺🇸 Advanced English | 🇧🇷 Native Portuguese Ready to bring your idea to life? Message me!

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