Responsibilities
Developing new user-facing features using React.js
Building reusable components and front-end libraries for future use
Translating designs and wireframes into high-quality code
Optimizing components for maximum performance across a vast array of web-capable devices and browser.

Skills
Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
Thorough understanding of React.js and its core principles
Experience with popular React.js workflows (such as Flux or Redux)
Familiarity with newer specifications of EcmaScript
Familiarity with RESTful APIs
Knowledge of modern authorization mechanisms, such as JSON Web Token
Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
Familiarity with code versioning tools { {such as Git and SVN} }