Strong knowledge of HTML5, CSS (SASS/LESS), JS and one of the JS frameworks like AngularJS 2, ReactJS, Ember
Deep understanding of Single Page Application concepts, responsive design
Familiarity with JavaScript unit testing frameworks, JSON, RESTful API invocations and ES6 standards is required
Working knowledge of application security, code quality best practice and JS performance
Good understanding of task runners/build tools (grunt/gulp, bower/npm)
Experience with version control/continuous integration (git/github/jenkins) and Unix/Linux