React-Node.js Integration

I need a skilled developer to integrate a React frontend with a partially developed Node.js backend.

Key Requirements:
- Experience with React and Node.js
- Ability to work with partially developed backend systems
- Strong understanding of API integration and data flow between frontend and backend

Ideal Skills:
- Proficiency in JavaScript
- Experience with backend development in Node.js
- Familiarity with database management
- Knowledge of authentication and authorization processes

Looking for someone who can ensure seamless communication between the frontend and backend, optimize the application for performance, and troubleshoot any issues that arise during the integration process.