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Job Description
Hi, Lead Front-End Engineer (React/Web) Engineer Role 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 focused, partnering closely with Product, UX, and backend/platform teams to deliver cutting- edge UI capabilities and set engineering standards. 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 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). 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.
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: Next.js / 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).
