React.js & Node.js Developer for Existing Management System

Hi,

We are looking for an experienced Full Stack Developer to carry out modifications and improvements to our existing internal business management system, Central Station.

The system is already developed and operational, using the following technologies:

- Frontend: React.js
- Backend: Node.js (Express.js)
- Database: PostgreSQL or MongoDB
- Architecture: API-based

The requested modifications mainly involve project management, invoicing, reporting, dashboard functionality, and salary management.

We have prepared a detailed scope of work outlining all the required changes, which we can share for your review.

Could you please confirm whether you have experience working with these technologies and modifying existing web applications?

We would prefer a fixed-price quotation covering all the requested modifications, including testing and necessary revisions until the agreed requirements are met.

We look forward to hearing from you.

Thank you!