{"schemaVersion":"jobsearcher.job.v1","id":"0d06aa56269736d78bcddb01","url":"https://jobsearcher.com/jobs/0d06aa56269736d78bcddb01","canonicalUrl":"https://jobsearcher.com/jobs/0d06aa56269736d78bcddb01","title":"Lead Front-End Engineer (React/Web)","description":"Required Skills:10+ 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 qualificationsExperience 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).Job responsibilitiesLead 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 JPMC's 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).","company":"Longfinch Technologies","rawCompany":"longfinch technologies","city":"Rutherford","state":"NJ","isRemote":false,"isActive":true,"createdAt":"2026-08-13T02:11:17.507Z","occupations":[{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1255.00","title":"Web and Digital Interface Designers","slug":"web-and-digital-interface-designers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Lead Front-End Engineer (React/Web)","description":"Required Skills:10+ 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 qualificationsExperience 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).Job responsibilitiesLead 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 JPMC's 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).","datePosted":"2026-08-13T02:11:17.507Z","dateModified":"2026-08-13T02:11:17.507Z","hiringOrganization":{"@type":"Organization","name":"Longfinch Technologies","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Rutherford","addressRegion":"NJ","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"0d06aa56269736d78bcddb01"},"url":"https://jobsearcher.com/jobs/0d06aa56269736d78bcddb01"}}