UI Front end Lead engineer – AEM & Generative AI (Claude)

Vallum Associates; City Of London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Vallum Associates is seeking a hands-on UI Lead Frontend Engineer with 10+ years of enterprise frontend experience and a track record in technical leadership.

You will design scalable React/Next.js applications integrated with Adobe Experience Manager (AEM), GraphQL/REST APIs, and AWS, establish reusable components and design systems, mentor distributed teams and leverage Claude AI to boost productivity and code quality.

Qualifications

• 10+ years of frontend/UI engineering experience.
• Expert knowledge of React.js, Next.js, TypeScript, JavaScript, HTML5 and CSS3.
• Strong hands-on experience with Adobe Experience Manager (AEM Sites), Core Components, editable templates and client libraries.
• Experience integrating frontend applications with AEM Headless, GraphQL and REST APIs.
• Proven expertise in frontend architecture, reusable components, design systems and performance optimisation.
• Hands-on experience with Claude AI / Claude Code for software development.
• Good understanding of AWS, CI/CD pipelines, Git and automated testing.
• Strong technical leadership, stakeholder communication and team mentoring skills.

Responsibilities

• Lead frontend architecture, technical design and development.
• Build scalable React/Next.js applications integrated with AEM.
• Establish reusable UI components, coding standards and engineering best practices.
• Leverage Claude AI to improve development productivity and code quality.
• Drive frontend performance, accessibility, security and CI/CD improvements.
• Guide distributed engineering teams and collaborate with architects, UX designers and stakeholders.

Skills

React.js

Next.js

TypeScript

JavaScript

HTML5

CSS3

AEM

GraphQL

REST APIs

Frontend architecture

Design systems

Claude AI

AWS

CI/CD

Git

Automated testing

Job description

We are seeking a highly experienced UI Lead Frontend Engineer with 10+ years of experience in frontend development, enterprise UI architecture and technical leadership.

The successful candidate will design and deliver scalable, reusable and high-performance frontend solutions using modern JavaScript frameworks, Adobe Experience Manager (AEM), AWS and AI-assisted development tools.

Essential Skills & Experience

• 10+ years of frontend/UI engineering experience.
• Expert knowledge of React.js, Next.js, TypeScript, JavaScript, HTML5 and CSS3.
• Strong hands-on experience with Adobe Experience Manager (AEM Sites), Core Components, editable templates and client libraries.
• Experience integrating frontend applications with AEM Headless, GraphQL and REST APIs.
• Proven expertise in frontend architecture, reusable components, design systems and performance optimisation.
• Hands-on experience with Claude AI / Claude Code for software development.
• Good understanding of AWS, CI/CD pipelines, Git and automated testing.
• Strong technical leadership, stakeholder communication and team mentoring skills.

Key Responsibilities

• Lead frontend architecture, technical design and development.
• Build scalable React/Next.js applications integrated with AEM.
• Establish reusable UI components, coding standards and engineering best practices.
• Leverage Claude AI to improve development productivity and code quality.
• Drive frontend performance, accessibility, security and CI/CD improvements.
• Guide distributed engineering teams and collaborate with architects, UX designers and stakeholders.

Ideal Candidate: A hands-on UI engineering leader with deep React/Next.js expertise, strong AEM architecture and integration experience, AWS knowledge and practical experience with Claude AI