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Lead Software Engineer Digital Platforms Team

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Testing Site - JPMC
Full Time position
Listed on 2026-10-18
Job specializations:
  • Software Development
    React.js, Software Architect, Front End Developer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 120000 - 160000 GBP Yearly GBP 120000.00 160000.00 YEAR
Job Description & How to Apply Below

We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.

As a Lead Software Engineer at JPMorgan

Chase within the Digital Platforms Team youare an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. As a core technical contributor, you are responsible for conducting critical technology solutions across multiple technical areas within various business functions in support of the firm’s business objectives.

Job responsibilities
  • Architect scalable, resilient UI platforms
    -Define and evolve clean, modular React architectures (state management, routing, SSR/SSG, hydration) that scale across teams and products, emphasizing maintainability, resiliency, and long-term sustainability.
  • Lead performance engineering
    - Set and enforce performance budgets and Web Vitals targets; drive bundle strategy (code splitting, lazy loading), caching/CDN policies, image optimization, profiling, and regression monitoring to ensure consistently fast, reliable experiences.
  • Build and govern reusable component libraries and design systems
    - Develop typed, accessible, and themeable React component libraries; establish versioning, documentation, and adoption guidelines to promote reuse, consistency, and platform-wide efficiency.
  • Enforce code quality, testing, and accessibility
    - Establish coding standards and review practices; implement robust testing (unit/integration/E2E) and CI coverage; ensure WCAG-compliant accessibility and front-end security hygiene throughout the platform.
  • Provide cross-functional leadership and mentorship
    - Translate product and UX requirements into technical roadmaps; collaborate tightly with product, design, and backend teams; mentor engineers in platform-thinking and React best practices; use data and observability to guide decisions and drive continuous improvement.
Required qualifications, capabilities, and skills
  • 10+ years in UI and frontend development with React Proven track record building and scaling complex, production-grade React applications across multiple products and teams.
  • Demonstrated platform mindset with strong focus on performance
    -Emphasis on clean architecture, robustness, resiliency, reusability, and measurable improvements to Core Web Vitals.
  • Advanced React and Type Script expertise
    -Deep knowledge of hooks, context, Suspense/concurrent features, SSR/SSG patterns (e.g., Next.js), and strict typing for safety and maintainability.
  • UI architecture and systems design
    -Ability to define scalable component architectures, design systems, modular libraries, and (where appropriate) micro frontends or module federation.
  • State management and data layer proficiency
    -Experience with Redux Toolkit, Zustand, React Query/Tan Stack Query, and GraphQL, including caching, synchronization, and error handling strategies.
  • Accessibility and standards compliance
    -WCAG compliance, semantic HTML, keyboard navigation, screen-reader support, and inclusive design integrated into the development workflow.
  • Testing, tooling, and CI/CD excellence
    -Strong in unit/integration/E2E testing (Jest, Testing Library, Playwright/Cypress), code quality gates, linting, type checks, and modern bundlers/dev servers (Webpack, Vite) with automated, reliable release pipelines.
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