React website

We are creating a website for a real estate investment business. Functional wireframes and requirements have been established. The following key deliverables are needed:

+Adding a front end theme to the existing work
+Integrating the front end code branches
+Responsive front end design, so that it’s compatible on mobile devices
+Highly user-friendly front end design
+Designed so that in future the code can be leveraged to create a mobile application

Front end: React
Back end: .Net Core
Database: PostgreSQL