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Sr Front-End Engineer

Han Staffing

 

Jersey City, NJ, USA

Posted On: 15+ days ago
Experience: 9+ years
Availability: Onsite
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 on-site.

Responsibilities

  • Lead development of complex, user-facing web applications using React and TypeScript, owning front-end architecture and delivery.
  • Partner with Product and UX to translate designs into polished, accessible experiences while influencing requirements.
  • Establish front-end standards for component architecture, state management, routing, and testing practices.
  • Drive performance optimization including Core Web Vitals, bundle splitting, and runtime observability.
  • Implement advanced UI capabilities such as rich data visualization, real-time updates, and secure client-side patterns.

Required Skills

  • 9+ years professional software engineering experience with significant depth in front-end web development.
  • Expert-level React proficiency including hooks, composition, context, and rendering behavior.
  • Strong TypeScript skills with generics, strictness strategies, and types-as-design.
  • Proficiency with AI-assisted engineering tools (Claude Code, GitHub Copilot) for implementation and debugging.
  • Strong CSS skills including responsive design, architecture (Modules/CSS-in-JS), and theming at scale.
  • Advanced testing practices using Jest, React Testing Library, Playwright, or Cypress.
  • API integration expertise with GraphQL and REST, including schema-driven development and error handling.
  • Performance engineering skills including profiling, SSR/CSR trade-offs, and caching strategies.

Preferred Skills

  • Experience with SSR/meta frameworks like Next.js or Remix and SEO considerations.
  • Familiarity with design systems (Storybook), micro-frontend patterns, or visualization libraries (D3, Canvas).
  • Proven track record of modernizing legacy front ends and improving developer experience.

Education

Any Graduate

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