Sr Front-End Engineer (React/Web) Engineer

Sr Front-End Engineer (React/Web) Engineer

Location:- Jersey City ( Only Local) (5 Days of Onsite)

Rate:- $50-55/hr

H1B only

Please share the resume Piyush.chowdhary@excelonsolutions.com

Role summary

Lead the design and development ofmodern, high-performance web experiencesusing React and the broader front-end ecosystem. This role is front-end focused, partnering closely with Product, UX, and backend/platform teams to delivercutting-edge UI capabilitiesand set engineering standards.

Job responsibilities

• Lead development of complex, user-facing web applications usingReact TypeScript, owning the front-end architecture and delivery approach.
• Partner with UX/Product to translate designs into polished experiences; influence requirements with feasibility, performance, and accessibility considerations.
• Establish and evolve front-end standards: 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: Core Web Vitals, bundle optimization, rendering strategies, caching, and runtime observability.
• Implement advanced UI capabilities such as rich data visualization, real-time updates, offline-friendly patterns, and robust form/workflow experiences.
• Ensure secure client-side patterns: safe auth flows, token handling guidance, secure storage, and protection against common web vulnerabilities.
• Collaborate with backend teams on API contracts (GraphQL/REST) and advocate for front-end friendly patterns (pagination, filtering, error models).

Required qualifications, capabilities, and skills

• 8 yearsprofessional software engineering experience with significant depth in front-end web development; experience leading projects and mentoring engineers.
• Expert-levelReactproficiency (hooks, component composition, context, rendering behavior, concurrency-related patterns where applicable).
• StrongTypeScriptskills (types-as-design, generics, strictness strategies) and modern JavaScript fundamentals.
• Deep experience with modern front-end tooling:Vite/Webpack, Babel/SWC, npm/pnpm/yarn, monorepos (optional), 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.
• Performance engineering: profiling, bundle splitting, SSR/CSR trade-offs, caching strategies, and Core Web Vitals optimization.
• API integration expertise withGraphQL and REST(schema-driven development, error handling, pagination, caching, and client state strategies).
• Security awareness for web apps: XSS/CSRF prevention, dependency hygiene, secure auth/session patterns (OIDC awareness a plus).
• Observability for the front end: client-side logging/metrics, error reporting, and debugging production issues.
• MUST:Proficiency using AI-assisted engineering tools (e.g.,Claude Code, GitHub Copilot) to accelerate implementation, refactoring, test creation, and debugging—while validating correctness and adhering to secure handling practices.

Preferred qualifications

• Experience with SSR/meta frameworks:Next.js / Remixand SEO considerations.
• Experience leveraging adesign system(Storybook, tokens).
• Experience with micro-frontend patterns and module federation (where relevant).
• Experience with visualization and rich UI: D3, Canvas/WebGL, advanced tables/grids, animation libraries.
• Familiarity with authentication integrations (OIDC/OAuth2) and enterprise SSO constraints.
• Proven track record modernizing legacy front ends and improving developer experience (DX).