Front End Developer

MANTECH seeks a Front End Developer to design and develop web-based user interfaces for operational tools and capability management systems. The role involves creating visualization dashboards, conducting user research, and integrating front-end applications with back-end APIs. The position requires an active TS/SCI with Polygraph clearance.

• Design and develop web-based user interfaces for operational tools and capability management systems
• Create visualization dashboards that present complex technical data in operator-friendly formats
• Conduct user research with operators to understand workflow pain points and interface requirements
• Build responsive, accessible web applications optimized for operational environment constraints
• Integrate front-end applications with back-end APIs, data pipelines, and capability infrastructure
• Implement real-time data visualization for operational status, system health, and mission telemetry
• Develop interface components that streamline operator workflows during mission execution
• CONUS travel maybe required up to 25%.

• Bachelor's degree and 4+ years of experience OR High School Diploma/GED and 8+ years of experience OR Associate’s degree and 6+ years of experience OR Master’s Degree and 2+ years, OR a PhD with 0+ years of progressively responsible experience.
• 3+ years professional front-end development experience
• Expert proficiency in HTML5, CSS3, and TypeScript
• Strong experience with modern JavaScript frameworks (React, Vue, Angular, or similar)
• Experience with RESTful API integration and asynchronous data handling
• Proficiency with data visualization libraries (D3.js, Plotly, Chart.js, or similar)
• Experience with version control (Git) and collaborative development workflows
• Familiarity with build tools and package managers (Webpack, npm, yarn)
• Proficiency with Golang for backend integration and tooling development
• Experience building applications for cybersecurity operations or intelligence analysis
• Familiarity with Svelte framework and real-time data visualization and WebSocket implementations
• Experience with component libraries and design systems (Material-UI, Ant Design)
• Bachelor's degree in Computer Science, Human-Computer Interaction, Design, or related field (or equivalent experience)
• An active TS/SCI with Polygraph is required.