Front-End Developer, Level 4
Job Description
Front-End Developer (Level 4) Location: Onsite – Springfield, VA
Design and implement user interfaces for TSSC applications and analytical tools
Develop and maintain user-facing features using modern front-end technologies
Ensure the technical feasibility of UI/UX designs and translate them into high-quality code
Develop interactive data-visualization components for technical security data
Create responsive web applications for field use by TSSC personnel
Optimize applications for maximum speed, scalability, and accessibility
Coordinate with back-end developers to integrate front-end components with APIs
Optimize application performance and usability for technical security operations
Provide technical leadership for junior front-end developers
Document front-end architecture, components, and interfaces
Conduct usability testing and implement improvements based on user feedback
Bachelor’s degree in Computer Science, Web Development, or a related field
Minimum of eight years of experience in front-end development
Experience with modern JavaScript frameworks such as React, Angular, or Vue
Experience developing applications for secure environments
Experience with front-end build tools such as Webpack, Babel, and npm/yarn
Strong understanding of responsive design, cross-browser compatibility, and web-performance optimization
Understanding of web-security best practices
Experience with data-visualization libraries and techniques
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Browse FlexJobs Listings →Knowledge of UX/UI design principles for technical applications
Experience with technical data visualization
Understanding of TSSC operations and requirements
Proficiency with TypeScript
Experience with front-end testing frameworks such as Jest, Cypress, or Playwright
In-depth knowledge of web accessibility standards
Knowledge of server-side rendering or static-site generation frameworks
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.
