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 ToDesign and develop web-based user interfaces for operational tools and capability management systemsCreate visualization dashboards that present complex technical data in operator-friendly formatsConduct user research with operators to understand workflow pain points and interface requirementsBuild responsive, accessible web applications optimized for operational environment constraintsIntegrate front-end applications with back-end APIs, data pipelines, and capability infrastructureImplement real-time data visualization for operational status, system health, and mission telemetryDevelop interface components that streamline operator workflows during mission executionCONUS travel maybe be required up to 25%.Minimum QualificationsBachelor's and 9+ years of experience OR High School Diploma/GED and 13+ years of experience OR Associate’s degree and 11+ years of experience OR Master’s Degree and 7+ years, OR a PhD with 5+ years of progressively responsible experience.3+ years professional front-end development experienceExpert proficiency in HTML5, CSS3, and TypeScriptStrong 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 workflowsFamiliarity with build tools and package managers (Webpack, npm, yarn)Preferred QualificationsProficiency with Golang for backend integration and tooling developmentExperience building applications for cybersecurity operations or intelligence analysisFamiliarity with Svelte framework and real-time data visualization and WebSocket implementationsExperience 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 RequirementsAn active TS/SCI with Polygraph is required.Must be a U.S. citizen.Physical RequirementsMust 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.