Reactjs, canvars, html5, and webdesigner

We are looking for a lead Web Developer for our web application. We are looking for someone with experience in ReactJS. In addition to standard ReactJS web development we are also looking for someone with in depth experience with HTML5 canvas, websockets, and audio. Please see our website, https://www.kasmweb.com. Our website is using angularjs, however, the application itself is ReactJS. The application is a secure, disposable, web based desktop. We need an experienced javascript developer to help develop a custom HTML/javascript based remote desktop rendering application. This UpWork project will include a few deliverables to see what your knowledge and skills are in general ReactJS web development and in HTML5 canvas graphics programming. A longer running project will follow if we find the right person for our team. - Investigate performance issues with canvas draw operations that are occurring when we use the latest, unreleased version of our server side remote desktop sender. - Add new fields to UI table. We have updated our API to return more information in the returned json and what that new data displayed in the UI. - Group settings in the current UI let the user input free form input, but the when the type is boolean the user should be limited to a drop down true/false. Additionally, there is currently no way to update a setting, you have to delete a setting and re-add. So we would like you to add an edit button and dialog.