Lead Software Engineer Front End - Asset Management

J.P. Morgan; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading global financial services firm is looking for a Lead Software Engineer to enhance and deliver market-leading technology products. The role involves designing core components of the UI Design System using React and integrating AI-powered tools. The ideal candidate has over 5 years of experience in web development with strong proficiency in JavaScript and UI/UX principles, driving innovative solutions in a collaborative environment.

Qualifications

• 5+ years of professional experience in web development, especially with React.
• Proficient in JavaScript, TypeScript, and CSS libraries.
• Experience building design systems or component libraries is essential.

Responsibilities

• Design and maintain core components of the UI Design System using React.
• Collaborate with teams to implement design patterns across applications.
• Architect scalable UI components for organizational use.

Skills

Web development

React

JavaScript

TypeScript

CSS libraries

UI/UX principles

Problem-solving

Collaboration

Tools

Jest

React Testing Library

Cypress

Vite

Webpack

Babel

Job description

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 JPMorganChase within Asset Management, 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

• Design, develop, and maintain core components of the UI Design System using React, TypeScript, and related technologies.
• Collaborate with product manager, designers, and engineers to ensure consistent implementation of design patterns and UI standards across applications.
• Architect and implement reusable, accessible, and scalable UI components and libraries for use across the organization.
• Integrate AI‑powered coding tools (e.g., code assistants, automated refactoring, code review bots) into the design system development workflow.
• Document component usage, guidelines, and best practices for internal consumers of the design system.
• Provide technical leadership within the UI Design System team.
• Stay current with emerging trends in web development, UI/UX, design systems, and AI tooling.
• Participate in code reviews, ensuring adherence to best practices and high code quality.
• Troubleshoot and resolve complex UI issues and bugs within the design system.

Required qualifications, capabilities, and skills

• 5+ years of professional experience in web development, with a focus on React and its ecosystem (Redux, React Router, Redux etc.).
• Strong proficiency in JavaScript, TypeScript, Reactjs, and CSS libraries.
• Experience building and maintaining design systems or component libraries.
• Experience with AI‑powered development tools (e.g., GitHub Copilot, Cursor, Windsurf, automated code review platforms).
• Solid understanding of UI/UX principles, accessibility, and responsive design.
• Familiarity with modern front‑end build pipelines (Vite, Webpack, Babel, etc.).
• Experience with testing frameworks (Jest, React Testing Library, Cypress).
• Excellent problem‑solving, communication, and collaboration skills.

Preferred qualifications, capabilities, and skills

• Experience with cloud platforms (AWS, Azure, GCP) and CI/CD pipelines.
• Knowledge of accessibility standards (WCAG) and internationalization.
• Experience of working with monorepo setup.
• Contributions to open‑source design systems or technical blogs.
• Prior experience in fintech or enterprise‑scale applications.