Senior Frontend Engineer
Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Aug 10, 2026.
Roles & Responsibilities:
- Build and maintain multi-product portal serving multiple integrated products
with unified navigation, dynamic feature toggling, and shared workflows
- Develop complex interactive visualizations including identity graph explorer,
segment builder UI, and real-time analytics dashboards
- Create and maintain a comprehensive design system with reusable, accessible,
and performant components
- Implement advanced frontend performance optimizations: virtualization for
large lists/graphs, code splitting, lazy loading, and rendering optimization
- Build complex form systems with dynamic validation, conditional logic, and
multi-step workflows
- Collaborate with Backend, Product, and UX teams to translate complex
requirements into intuitive, high-performance interfaces
- Implement comprehensive testing strategies: unit tests, integration tests,
and E2E tests for complex interactive components
Requirements
- 5+ years of hands-on frontend development experience dedicated to
React/TypeScript
- Proven production experience building visual editors, workflow builders, or
node-based UIs (React Flow, JointJS, Rete.js, Flume, or custom implementations)
- Expertise in complex state management: Zustand, Jotai, Redux Toolkit, or
similar at scale with real-time sync
- Advanced TypeScript proficiency: generics, conditional types, mapped types,
type guards, discriminated unions
- Strong understanding of React internals: fiber architecture, reconciliation,
concurrent features, Suspense
- Production experience with testing complex UI: Jest, React Testing Library,
Playwright/Cypress for E2E