Full Stack Developer Needed for .NetCore Project

I need a Full Stack Developer comfortable with React, Sass, .NetCore, and SQL Server to work on my website, web application, and mobile/desktop app.

The primary goal of this project is to develop a responsive, high quality website that also functions as a web application, with the potential for further expansion into mobile and desktop applications.

We are looking forward to have a complete Computerized Maintenance Management System (CMMS) / Maintenance Work Order(MWO).
A Complete Control Pannel on Web based asapplication along with the Mobile APP + Desktop APP. With the below added features.:-
+ It will have Website Fully responsive, Mobile APP, Control Pannel Application
+ It must fully SAAS Based means related to the SAAS Based all the screen to be designed and implemented
+ CRM (Register Company, Lead, Converted, Communcation, Win Deal , Create Quotation and Invoice)
+ Access Control Management for all the SAAS Based module wise , user wise rights
+ We want to use MS SQL Server on the windows using Stored Procedure and required API thru.NetCore is prefered
Let me know your expertise in this and same time propose me your quotation with timetable to proceed.

Ideal skills and experience for this project are:
- Proficiency in React and Sass for frontend development
- Strong experience in .NetCore for backend development
- Familiarity with SQL Server, including stored procedures
- Previous work developing user authentication systems
- Ability to create responsive design