React-based / angular Software Product Testing Website

I'm looking for a React developer to create a drag-and-drop web building site for me. This site will primarily be used for testing software products.

Key Features:
- Web hosting
- Drag-and-drop web building interface
- Focused on product testing

Ideal Skills:
- Proficient in cross-platform (ionic or any suggestions accepted) UI development
- Proficient in React / angular
- Experience in web hosting and building
- Understanding of software product testing processes
- integration / JSON

Reference : https://gojs.net/latest/samples/flowchart.html