Sr Front-End Engineer

Visa: H1B, H4ead, TN

Job Title:

Sr Front-End Engineer

Experience:

12+ Years

Location:

Jersey City, NJ RTTO – 5 Days Onsite Please look profile from FAANG / High Tech & Fin Tech Companies. Look candidate from below Tier 1 companies. Meta Goldman Sachs Morgan Stanly Google Netflix Amazon Apple Summary Lead the design and development of modern, high-performance web experiences using React and the broader front-end ecosystem. This role is front-end (React) 60% and backend (Java Spring) 40% focused skills to deliver cutting-edge UI & Microservices capabilities and set engineering standards.

Job responsibilities Lead development of complex, user-facing web applications using React, owning the front-end architecture and delivery approach. Develop microservices / API contracts (GraphQL/REST) using Java and Spring technologies and front-end friendly design patterns (pagination, filtering, error models). Establish and evolve front-end standards: component architecture, state management, routing, code conventions, and testing practices. 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. Required qualifications, capabilities, and skills 12+ 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 Type Script skills (types-as-design, generics, strictness strategies) and modern JavaScript fundamentals. Strong Java and Java Spring skills to develop microservices / API contracts (GraphQL/REST) using Java and Spring technologies and front-end friendly design patterns (pagination, filtering, error models). Deep experience with modern front-end tooling:
Vite/Webpack, Babel/SWC, npm/pnpm/yarn, monorepos (optional), and build/release pipelines. 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, Git Hub Copilot) to accelerate implementation, refactoring, test creation, and debugging—while validating correctness and adhering to secure handling practices.