Professional REACT JS developer needed for Google Chrome Extension

I need a Professional REACT JS developer for Google Chrome Extension development and maintenance. The developer must have good knowledge of REACT JS and Google Chrome Extension development. I need the association for a long time. Developer need to do modification work in the existing Google Chrome Extension as well as develop new as per the time to time requirements. Initially I will award work on task basis after that if I like the work I will hire on fixed salary basis. If you are serious and can dedicatedly work for my tasks than only bid here.

For this particular project freelancer need to add 4 things in the existing extension. I will explain you the things once you post the bids.