Principal Frontend Engineer (Modeling & Simulation)

Join our team as a Principal Frontend Engineer, where you will play a crucial role in building and shipping our TypeScript/React application. You will own the frontend architecture, set technical standards, and design scalable UI patterns for complex geospatial workflows. This hands-on, coding-heavy role requires excellent communication skills, a strong architectural judgment, and a track record of leading complex UI work. You will also mentor engineers, partner with leadership on priorities, and write production code daily.

• Set front-end architecture and technical standards for a TypeScript/React application, and design scalable UI patterns for complex geospatial workflows.
• Mentor engineers through code reviews, architecture discussions, and practical implementation guidance, and partner with engineering leadership to plan, prioritize, and deliver high-impact product work.
• Drive execution by writing production code daily, and establish best practices for state management, component architecture, performance, testing, and maintainability.
• Eligible to obtain and maintain an active U.S. Top Secret security clearance
• Strong architectural judgment: you can balance “build fast” with “don’t paint us into a corner.”
• Track record leading complex UI work (interactive, data-heavy apps; performance matters)
• Excellent communication: you can align teammates around patterns and decisions without slowing delivery
• 8+ years building and scaling front-end systems; deep React + TypeScript expertise
• Experience working with design systems / component libraries (we’re using MUI)
• Ability to operate in a fast-moving environment with minimal process overhead
• Experience with visualization libraries (not required; product is more geospatial + UI workflows than pure D3)
• GIS / geospatial domain experience (Cesium, mapping frameworks, geo interactions, coordinate systems, etc.)
• Prior work on simulation platforms, gaming-adjacent UI paradigms, or real-time systems
• Backend familiarity (API design, debugging cross-stack issues)
• Active U.S. security clearance (Secret or Top-Secret)