Sr Front-End Engineer

Job Title: Sr Front-End Engineer

Location : Jersey City ( Only Local)

Exp: 10 Yrs

RTTO 5 Days Onsite

Job responsibilities

• Lead development of complex user-facing web applications using React 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 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 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 with GraphQL 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: / Remix and SEO considerations.
• Experience leveraging a design 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).