Frontend Engineer (React.js, TypeScript)
Sundayy
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About the role
Role Overview
We are seeking a Principal Frontend Engineer to shape the architecture and development of TypeScript/React applications. You will own frontend design, set technical standards, and build scalable UI patterns for complex geospatial workflows (including Cesium integration). This is a hands-on, coding-intensive role where you will also mentor engineering teams and collaborate with leadership on product priorities.
Responsibilities
- Define and implement frontend architecture and technical standards
- Build scalable UI patterns for geospatial workflows, including Cesium integration
- Establish best practices for:
- State management
- Component architecture
- Performance optimization
- Testing and maintainability
- Collaborate with engineering leadership to plan, prioritize, and deliver product features
- Mentor and review code to ensure consistency and technical growth
- Drive development through active coding, troubleshooting, and UI component refinement
- Work with cross-functional teams to integrate UI with backend services
- Stay current on industry trends and improve platform performance and usability
Requirements
- 8+ years building and scaling frontend systems
- Deep expertise in React and TypeScript
- Strong architectural judgment balancing speed with maintainability
- Proven ability leading complex, interactive, data-heavy UI projects
- Experience with design systems and component libraries (preferably MUI)
- Ability to operate efficiently in fast-paced environments with minimal process overhead
- Excellent communication skills to align teams around technical patterns and decisions
Nice to Have / Additional Context
- Experience integrating complex visualization/geospatial workflows (explicitly with Cesium)
- Capability to influence and standardize engineering practices across teams
Benefits
- Competitive salary (upper market range)
- Healthcare with 100% premium coverage (medical/dental/vision)
- 401(k) with 5% employer matching
- Uncapped PTO, plus sick leave and public holidays
- Flexible hybrid or fully remote work arrangements
- Relocation assistance (eligible roles)
Security / Eligibility
- Role may require U.S. citizenship to obtain/maintain an active U.S. Top Secret security clearance.
About Sundayy
Sundayy (described as Code Metal in the posting) builds code translation and platform software for mission-critical industries. The platform helps defense and industry partners accelerate deployment by converting complex algorithms into silicon for applications like DSP, RF, communications, and embedded signal processing. It serves automotive, aerospace, and semiconductor teams with an emphasis on reliability, performance, and security.
Scraped 6/12/2026