React Architect / Lead Front-End Engineer - W2 Only
Saransh Inc · Jersey City, NJ · 1 mo ago
On-siteEngineeringContract
Responsibilities
- Lead development of complex, user-facing web applications using React and TypeScript, owning front-end architecture and delivery.
- Partner with UX and Product teams to translate designs into high-quality user experiences while considering performance, accessibility, and feasibility.
- Establish and evolve front-end standards including component architecture, state management, routing, coding conventions, and testing practices.
- Build using JPMC's EXDS UI foundations, including design systems, component libraries, theming, responsive layouts, and cross-browser compatibility.
- Drive performance and quality through Core Web Vitals optimization, bundle optimization, rendering strategies, caching, and observability.
- Implement advanced UI capabilities including data visualization, real-time updates, offline-friendly applications, and complex forms/workflows.
- Ensure secure client-side development practices, including authentication flows, token handling, secure storage, and protection against common web vulnerabilities.
- Collaborate with backend teams on GraphQL and REST API contracts, advocating for front-end friendly designs including pagination, filtering, caching, and error handling.
Required Qualifications
- 12+ years of software engineering experience with deep expertise in front-end web development.
- Expert-level proficiency in React, including hooks, component composition, context, and rendering optimization.
- Strong TypeScript and modern JavaScript skills.
- Experience with modern front-end tooling including Vite, Webpack, Babel/SWC, npm/pnpm/yarn, and build/release pipelines.
- Strong CSS expertise, including responsive design, theming, and scalable styling approaches.
- Experience with testing frameworks such as Jest/Vitest, React Testing Library, Playwright, and Cypress.
- Strong knowledge of accessibility standards (WCAG/ARIA) and accessibility testing practices.
- Experience optimizing application performance, including Core Web Vitals, bundle splitting, SSR/CSR strategies, and caching.
- Strong GraphQL and REST API integration experience.
- Knowledge of web security best practices, including XSS/CSRF prevention and secure authentication/session management.
- Experience with front-end observability, logging, monitoring, and production debugging.
- Experience using AI-assisted engineering tools such as GitHub Copilot or Claude Code for development, testing, refactoring, and debugging.
Top Skills
- React
- Next.js
- TypeScript
- GraphQL
- AI Tools (GitHub Copilot / Claude Code)
Preferred Qualifications
- Experience with Next.js, Remix, and SSR.
- Experience with design systems, Storybook, and design tokens.
- Experience with micro-frontends and Module Federation.
- Experience with D3, Canvas/WebGL, advanced data grids, and animation libraries.
- Familiarity with OAuth2/OIDC and enterprise SSO integrations.
- Proven experience modernizing legacy front-end applications and improving developer experience (DX).