Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object modelThorough understanding of React.js and its core principlesExperience with popular React.js workflows (such as Flux or Redux)Familiarity with newer specifications of EcmaScriptFamiliarity with RESTful APIsKnowledge of modern authorization mechanisms, such as JSON Web TokenExperience with common front-end development tools such as Babel, Webpack, NPM, etc.Ability to understand business requirements and translate them into technical requirementsA knack for benchmarking and optimizationFamiliarity with code versioning tools {{such as Git, SVN, and Mercurial}}