Staff Frontend Engineer
Staff-level frontend engineer owning the React/TypeScript architecture behind NewtonX's data-dense research and analytics applications. Day to day: writing production code, setting frontend standards for performance, accessibility, and testing, building a shared design system, and mentoring engineers, with some light Python/Django contribution.
- Compensation
- $180K–$240K / yr
- Location
- Remote
- Work setup
- Remote
- Seniority
- Staff
- Employment
- Not specified
- Experience
- 6+ years
- Category
- Frontend
- Posted
Skills
Must have
- 6+ years engineering experience, mostly frontend, including 3+ at senior level owning projects end-to-end
- Deep React expertise — hooks, composition patterns, reasoning about rendering behavior
- Strong TypeScript — typing that catches real bugs
- Expert JavaScript (ES6+), HTML, and CSS/SCSS, including the modern layout model
- Proven ownership of frontend architecture at scale: module boundaries, shared component libraries, state management strategy
- Web performance as a discipline — Core Web Vitals, bundle analysis, code splitting, virtualization, profiling
- Accessibility fluency — WCAG 2.1 AA, semantic HTML, keyboard and focus management, screen reader testing
- Design system experience: reusable, themeable, documented components built with Design
- Testing depth — Jest and React Testing Library, plus trusted end-to-end coverage (Playwright or Cypress)
- Fluency consuming APIs: REST and/or GraphQL, data-fetching and caching patterns (React Query, SWR, Apollo)
- Working knowledge of Python/Django — enough to read backend code and ship small changes
- Ability to mentor, review code with judgment, and raise the bar without becoming a bottleneck
Nice to have
- Server-side rendering (Next.js, Remix) and hydration tradeoffs
- Frontend observability and performance budgets enforced in CI (Sentry, Datadog RUM)
- Data visualization at scale (D3, Recharts, Visx, canvas/WebGL)
- Real-time UI: WebSockets, polling strategies, streaming or collaborative interfaces
- Styling systems (Material-UI, Tailwind) and state management (Redux, Zustand)
- Build and monorepo tooling ownership (Vite, Webpack, CI pipelines)
- Cloud and infra exposure: GCP, Kubernetes, Docker, Terraform
- Internationalization, or SOLID design principles applied with judgment
Full description
About NewtonX
NewtonX is a B2B insights company trusted by the world's most innovative companies to make high-stakes decisions with confidence. We combine a verified network of business professionals with AI-powered research tools to deliver research intelligence faster, more precise, and more defensible than traditional methods.
Our clients include Google, Microsoft, TikTok, DoorDash, Stripe, and Coinbase. Our research has been cited by Fortune, Forbes, TechCrunch, Adweek, and the Wall Street Journal.
NewtonX has raised $47M from investors including Two Sigma Ventures, Third Prime, XFund, and Citi Ventures.
About The Role
We are looking for a Staff Frontend Engineer with deep expertise in React and TypeScript. You’ll own the frontend architecture behind the data-dense applications our clients and research teams use every day, where performance, accessibility, and interaction quality are the product. This is a hands-on role: you’ll write production code, but your leverage comes from the systems and standards you leave behind.
What We’re Looking For
- 6+ years engineering experience, mostly frontend, including 3+ at a senior level owning projects end-to-end
- Deep React expertise — hooks, composition patterns, and the ability to reason about rendering behavior rather than guess at it
- Strong TypeScript — typing that catches real bugs instead of decorating the code
- Expert JavaScript (ES6+), HTML, and CSS/SCSS, including the modern layout model
- Proven ownership of frontend architecture at scale: module boundaries, shared component libraries, and state management strategy
- Web performance as a discipline — Core Web Vitals, bundle analysis, code splitting, virtualization, and profiling with real tooling
- Accessibility fluency — WCAG 2.1 AA, semantic HTML, keyboard and focus management, screen reader testing
- Design system experience: reusable, themeable, documented components built in partnership with Design
- Testing depth — Jest and React Testing Library, plus end-to-end coverage (Playwright or Cypress) people actually trust
- Fluency consuming APIs: REST and/or GraphQL, data-fetching and caching patterns (React Query, SWR, Apollo), and error states that hold up in production
- Working knowledge of Python/Django — enough to read backend code, shape endpoints with backend engineers, and ship a small change yourself
- Ability to mentor, review code with judgment, and raise the bar without becoming a bottleneck