Job Description u2022u2003Expertise in JavaScript/TypeScript, HTML5, CSS3, and responsive web design u2022u2003Experience with modern UI libraries like React and next.js integrated with Java-based backends u2022u2003Deep understanding of React.js, component-driven architecture, and state management u2022u2003Deep understanding of React Native to support mobile development u2022u2003Proven experience on RESTful API integration, OAuth2, JWT, and secure session/state management u2022u2003Strong experience with front-end build tools, and performance optimization u2022u2003Familiarity with design systems, accessibility (WCAG), and cross-browser compatibility