Sr Front-End Engineer
Job Location:
Job Location:
Jersey, NJ - USA
Monthly Salary:
Not Disclosed
Monthly Salary:
Posted on:
3 hours ago
Posted on:
Vacancies:
1 Vacancy
Vacancies:
Job Summary
Sr Front-End Engineer
Location : New Jersey
Job Type : FTE/FTC (Both)
Location : New Jersey
Job Type : FTE/FTC (Both)
Local to New Jersey :Mandatory in-person client interview
Required qualifications capabilities and skills
10 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).
