Front End Developer

MANTECH seeks a motivated, career and customer-oriented Front End Developer to join our team in Annapolis Junction, MD.

Responsibilities include but are not limited to:

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%.

Minimum Qualifications:

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)

Preferred Qualifications:

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)

Clearance Requirements:

An active TS/SCI with Polygraph is required.

Physical Requirements:

Must be able to remain in a stationary position 50% of the time.

Needs to occasionally move about inside the office to access file cabinets and office machinery.

Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.

Must be able to exchange accurate information in these situations.