2–5 years of front-end/mobile application development experience (web-mobile or hybrid mobile) Strong proficiency with React.js and ideally React Native or similar mobile framework Solid Javascript (ES6+), HTML5, CSS3, and responsive-design skills Experience integrating front-end applications with RESTful APIs, working with JSON and authentication flows Familiarity with mobile UI/UX patterns, as well as browser/web mobile interoperability and performance optimisation Comfortable working in Agile/Scrum teams, using version control (Git), ticketing systems (JIRA) Basic understanding of accessibility (WCAG) and federal compliance (NIST, VA standards) is a plus Excellent communication skills