We need experienced [url removed, login to view] coders to accelerate revision of a web app front end. The system is built on a [url removed, login to view] stack, with the front-end on it's own server layer backed by services provided by our team through APIs. . The system is laid out as menu driven multi and SPA. In addition to more typical forms and controls, there is a need to manipulate very large data sets in a dynamic spreadsheet type environment, as well as for numerous custom data visualization and dashboard control components . Expect to interact with development team in (at least) weekly SCRUM type reviews, with current builds available for review and testing on our provided servers. Prefer local freelancers that are able to be on site at least some days.