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Staff Frontend Engineer

Company
NewtonX
Location
Remote
Work type
Full Time
Posted
2026-09-10

Job description

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

Bonus Skills (Nice-to-Haves)
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

What You’ll Do
Own the architecture of our 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 — performance budgets, accessibility, testing, and quality gates in CI

Build and evolve our shared component library and design system with Design

Drive measurable performance work: profile, fix the real bottleneck, instrument it so it stays fixed

Partner with backend engineers on API contracts that make the frontend simpler, not harder

Pay down frontend technical debt deliberately, and contribute to Python/Django services where it speeds delivery

Mentor engineers and own department-wide technical initiatives from proposal through adoption

What We Offer
Competitive compensation with a total compensation range of $180k-$240k and equity. (Please note that salary and compensation may vary based on skills, experience, performance, and location.)

Excellent medical, dental, and vision insurance.

401k match with immediate vesting.

Generous Paid time off: vacation, holidays, sick, and parental leave.

A diverse, collaborative, and positive culture where we invest in and celebrate each other’s success.

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