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Han Staffing Logo
Sr Front-End Engineer

Han Staffing

 

Iselin, NJ 08830, USA

Posted On: 9 days ago
Experience: 8+ years
Availability: Remote
Openings: 1
Category: Senior Frontend Engineer
Tenure: No Preference/Any
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Description

Lead the design and development of modern, high-performance web experiences using React and the broader front-end ecosystem.

This role is remote.

Responsibilities

  • Lead development of complex, user-facing web applications using React + TypeScript, owning the front-end architecture and delivery approach.
  • Establish and evolve front-end standards including component architecture, state management, routing, code conventions, and testing practices.
  • Build using EXDS UI foundations: design system / component library, theming, responsive layouts, and cross-browser compatibility.
  • Drive performance and quality by optimizing Core Web Vitals, bundle optimization, rendering strategies, caching, and runtime observability.
  • Collaborate with backend teams on API contracts (GraphQL/REST) and advocate for front-end friendly patterns such as pagination, filtering, and error models.

Required Skills

  • 8+ years professional software engineering experience with significant depth in front-end web development; experience leading projects and mentoring engineers.
  • Expert-level React proficiency (hooks, component composition, context, rendering behavior, concurrency-related patterns where applicable).
  • Strong TypeScript skills (types-as-design, generics, strictness strategies) and modern JavaScript fundamentals.
  • Deep experience with modern front-end tooling: Vite/Webpack, Babel/SWC, npm/pnpm/yarn, and build/release pipelines.
  • Strong CSS skills: responsive design, CSS architecture (CSS Modules, CSS-in-JS, or utility frameworks), theming, and consistent styling at scale.
  • Advanced testing practices: Jest/Vitest, React Testing Library, Playwright/Cypress for E2E; test strategy ownership.
  • Accessibility expertise: WCAG/ARIA, keyboard navigation, screen-reader considerations, and automated + manual a11y testing.
  • API integration expertise with GraphQL and REST (schema-driven development, error handling, pagination, caching, and client state strategies).
  • Proficiency using AI-assisted engineering tools (e.g., Claude Code, GitHub Copilot) to accelerate implementation, refactoring, test creation, and debugging.

Preferred Skills

  • Experience with SSR/meta frameworks: Next.js / Remix and SEO considerations.
  • Experience leveraging a design system (Storybook, tokens) or micro-frontend patterns.
  • Familiarity with authentication integrations (OIDC/OAuth2) and enterprise SSO constraints.

Education

Any Graduate

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