Staff Frontend Engineer

Description

• Own the architecture of React/TypeScript applications and the patterns the team builds on • Lead development of performant, accessible UIs for complex research and analytics workflows • Set and defend frontend standards for performance budgets, accessibility, testing, and CI quality gates • Build and evolve the shared component library and design system with Design • Drive measurable performance improvements by profiling, fixing bottlenecks, and instrumenting solutions • Partner with backend engineers on API contracts • Deliberately pay down frontend technical debt • Contribute to Python/Django services where it speeds delivery • Mentor engineers • Own department-wide technical initiatives from proposal through adoption

Requirements

• 6+ years of engineering experience, mostly frontend, including 3+ years at a senior level owning projects end-to-end • Deep expertise in React, including hooks, composition patterns, and rendering behavior • Strong TypeScript skills • Expert JavaScript (ES6+), HTML, and CSS/SCSS, including the modern layout model • Proven ownership of frontend architecture at scale, including module boundaries, shared component libraries, and state management strategy • Web performance expertise, including Core Web Vitals, bundle analysis, code splitting, virtualization, and profiling with real tooling • Accessibility fluency, including WCAG 2.1 AA, semantic HTML, keyboard and focus management, and screen reader testing • Design system experience with reusable, themeable, documented components built in partnership with Design • Testing experience with Jest, React Testing Library, and end-to-end coverage using Playwright or Cypress • Fluency consuming REST and/or GraphQL APIs, including data-fetching and caching patterns such as React Query, SWR, or Apollo • Working knowledge of Python/Django sufficient to read backend code, shape endpoints with backend engineers, and ship small changes • Ability to mentor and conduct judgment-based code reviews • U.S. work authorization is requested in the application form

Benefits

• Equity • Excellent medical, dental, and vision insurance • 401k match with immediate vesting • Generous paid time off, including vacation, holidays, sick, and parental leave • Diverse, collaborative, and positive culture where the company invests in and celebrates employees’ success

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