Senior Front-End Architect - React + TypeScript

Neshent Technologies; Paramus (NJ); On-site; USD 180,000 - 240,000; Full time

Job summary

Neshent Technologies is seeking a senior frontend engineer to lead complex, user-facing web applications built with React and TypeScript. You will own frontend architecture, collaborate with UX and product teams, and drive performance, accessibility, and security across the stack.

You will implement advanced UI features, work with a design system, and ensure robust testing and cross-browser compatibility in a fast-paced environment.

Qualifications

• 15+ years of professional software engineering in frontend web development with leadership experience.
• Expert-level React proficiency (hooks, composition, context, rendering behavior).
• Strong TypeScript skills (types-as-design, generics, strictness).
• Deep experience with modern frontend tooling (Vite/Webpack, Babel/SWC, npm/pnpm/yarn).
• Strong CSS skills (responsive design, CSS Modules/JS-in-CSS, theming).
• Advanced testing practices (Jest/Vitest, RTL, Playwright/Cypress).
• Accessibility expertise (WCAG/ARIA, keyboard navigation, screen readers).
• Performance engineering (Core Web Vitals, bundling, caching).
• API integration expertise (GraphQL/REST, pagination, client state).
• Security awareness (XSS/CSRF, secure auth patterns).
• Observability for frontend (logging, error reporting).
• MUST: Proficiency with AI-assisted tools (Claude Code, GitHub Copilot).

Responsibilities

• Lead frontend development of complex web apps using React + TypeScript.
• Collaborate with UX/Product to translate designs; evaluate feasibility, performance, accessibility.
• Establish and evolve frontend standards: architecture, state, routing, testing.
• Build on design system foundations; ensure theming, responsiveness, cross-browser compatibility.
• Drive performance: Core Web Vitals, code-splitting, caching, observability.
• Implement advanced UI features like data visualization, real-time updates, offline support.
• Ensure secure client-side patterns and guidance on token handling.
• Work with backend teams on GraphQL/REST contracts and client patterns.

Skills

Front-end architecture

React proficiency

TypeScript

Modern tooling

CSS skills

Testing practices

Accessibility (a11y)

Performance optimization

API integration (GraphQL/REST)

Security awareness

Observability/logging

AI-assisted tooling

Tools

Vite/Webpack

Babel/SWC

npm/pnpm/yarn

Monorepos

Design system / component library

Storybook

D3/Canvas/WebGL

Job description

Neshent Technologies is seeking a senior frontend engineer to lead complex, user-facing web applications built with React and TypeScript. You will own frontend architecture, collaborate with UX and product teams, and drive performance, accessibility, and security across the stack.

You will implement advanced UI features, work with a design system, and ensure robust testing and cross-browser compatibility in a fast-paced environment.