Front-End Developer, Level 4

<p><strong>Front-End Developer (Level 4)</strong></p><p>Location: Onsite – Springfield, VA</p><ul><li>Clearance Requirement: TS/SCI</li><li>Salary: $170,000</li></ul><p><br /></p><p><strong>DUTIES:</strong></p><ul><li>Design and implement user interfaces for TSSC applications and analytical tools</li><li>Develop and maintain user-facing features using modern front-end technologies</li><li>Ensure the technical feasibility of UI/UX designs and translate them into high-quality code</li><li>Develop interactive data-visualization components for technical security data</li><li>Create responsive web applications for field use by TSSC personnel</li><li>Optimize applications for maximum speed, scalability, and accessibility</li><li>Implement user authentication and authorization interfaces</li><li>Ensure compliance with security requirements for classified environments</li><li>Coordinate with back-end developers to integrate front-end components with APIs</li><li>Optimize application performance and usability for technical security operations</li><li>Provide technical leadership for junior front-end developers</li><li>Document front-end architecture, components, and interfaces</li><li>Conduct usability testing and implement improvements based on user feedback</li></ul><p><br /></p><p><strong>SKILLS AND EXPERIENCE – REQUIRED:</strong></p><ul><li>Bachelor's degree in Computer Science, Web Development, or a related field</li><li>Minimum of eight years of experience in front-end development</li><li>Experience with modern JavaScript frameworks such as React, Angular, or Vue</li><li>Knowledge of HTML5, CSS3, and responsive-design principles</li><li>Experience developing applications for secure environments</li><li>Experience with front-end build tools such as Webpack, Babel, and npm/yarn</li><li>Strong understanding of responsive design, cross-browser compatibility, and web-performance optimization</li><li>Knowledge of RESTful APIs and asynchronous request handling</li><li>Understanding of web-security best practices</li><li>Experience with data-visualization libraries and techniques</li></ul><p><br /></p><p><strong>SKILLS AND EXPERIENCE – DESIRED:</strong></p><ul><li>Experience working with classified systems and security requirements</li><li>Knowledge of UX/UI design principles for technical applications</li><li>Experience with technical data visualization</li><li>Understanding of TSSC operations and requirements</li><li>Experience with secure authentication methods</li><li>Proficiency with TypeScript</li><li>Experience with front-end testing frameworks such as Jest, Cypress, or Playwright</li><li>In-depth knowledge of web accessibility standards</li><li>Familiarity with state-management libraries such as Redux, MobX, or Vuex</li><li>Experience with GraphQL</li><li>Knowledge of server-side rendering or static-site generation frameworks</li></ul><p><br /></p><p><strong>We are an equal opportunity employer, and we are an organization that values diversity. We welcome applications from all qualified candidates, including minorities and persons with disabilities.</strong></p><p><br /></p><p>req26-00702</p>