4+ years building modern web applications/sites in a digital agency or consulting environment Minimum of 4 years in semantic HTML5 and CSS3, and comfortable with preprocessors Minimum of 4 years with JavaScript and proficient in at least one modern JavaScript framework (e.g. React, Vue.js, AngularJS) – including the ability to work with remote APIs and third-party web services, loading data asynchronously, understanding state management, using JavaScript templates and dynamic views