Staff Frontend Engineer (React / Vue / TanStack / Visx / Tailwind / Node.js)

Staff Frontend Engineer to lead the design and development of scalable, high-performance frontend applications. Responsibilities include designing scalable frontend systems with React.js and TypeScript, defining component architecture and data flow, implementing server-state management with TanStack Query, building high-performance data tables with TanStack Table, and developing BFF services using Node.js. Data visualization using Visx or D3.js, building interactive charts and dashboards, and enabling efficient rendering for large datasets. Contribute to a scalable design system with Tailwind CSS, create reusable accessible UI components, and ensure consistency across applications. Focus on performance optimization (Core Web Vitals, lazy loading, code splitting), writing unit/integration tests (Jest, Vitest, Playwright), and debugging performance issues. Collaborate with product, design, and backend teams; mentor engineers; participate in architecture and design reviews. 7 to 10+ years of frontend/full-stack experience; strong React.js with TypeScript and modern JavaScript; Node.js experience; hands-on TanStack (Query, Table), Visx/D3, Tailwind CSS; experience with real-time systems (WebSockets, SSE). Own frontend architecture at team/product level and drive best practices in performance, testing, and maintainability.