Demo

Front-End Developer, Level 4

Pop-Up Talent
Springfield, VA Full Time
POSTED ON 10/8/2026
AVAILABLE BEFORE 11/5/2026

Front-End Developer (Level 4)

Location: Onsite – Springfield, VA

  • Clearance Requirement: TS/SCI
  • Salary: $170,000


DUTIES:

  • 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
  • Implement user authentication and authorization interfaces
  • Ensure compliance with security requirements for classified environments
  • 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


SKILLS AND EXPERIENCE – REQUIRED:

  • 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
  • Knowledge of HTML5, CSS3, and responsive-design principles
  • 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
  • Knowledge of RESTful APIs and asynchronous request handling
  • Understanding of web-security best practices
  • Experience with data-visualization libraries and techniques


SKILLS AND EXPERIENCE – DESIRED:

  • Experience working with classified systems and security requirements
  • Knowledge of UX/UI design principles for technical applications
  • Experience with technical data visualization
  • Understanding of TSSC operations and requirements
  • Experience with secure authentication methods
  • Proficiency with TypeScript
  • Experience with front-end testing frameworks such as Jest, Cypress, or Playwright
  • In-depth knowledge of web accessibility standards
  • Familiarity with state-management libraries such as Redux, MobX, or Vuex
  • Experience with GraphQL
  • 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.


req26-00702

Salary : $170,000

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