Senior Frontend Engineer

Job Description This is a remote position. 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 Benefits ​