AEM EDS Frontend Developer

About the Role

We are looking for an experienced Frontend Developer to build fast, accessible, and high-performing websites on Adobe Experience Manager (AEM) Edge Delivery Services (formerly Franklin / Helix). You will develop reusable blocks, work closely with authors and designers, and help deliver digital experiences that consistently score high on Core Web Vitals and Lighthouse.

Key Responsibilities

.Design, develop, and maintain AEM EDS blocks, sections, and templates using vanilla JavaScript (ES6+), HTML5, and CSS3.

.Build websites using the AEM Boilerplate and the EDS project structure (blocks, scripts, styles, head.html, fstab.yaml).

.Implement Universal Editor (xwalk) based authoring - define component models, definitions, and filters (component-models.json, component-definition.json, component-filters.json) so blocks are fully editable in the Universal Editor.

.Optimise for performance: E-L-D (Eager, Lazy, Delayed) loading, image optimisation, and achieving a 100 Lighthouse score and strong Core Web Vitals (LCP, CLS, INP).

.Work with AEM as a Cloud Service author, Universal Editor, and preview/live publishing workflows for EDS.

.Build and consume JSON-based data sources, query indexes, and redirects integrate third-party APIs and martech (Adobe Analytics, Target, Launch/Tags) without affecting performance.

.Convert Figma/XD designs into responsive, pixel-accurate, and accessible (WCAG 2.1 AA) components.

.Collaborate with content authors to create author-friendly block structures and write authoring documentation.

.Participate in code reviews, maintain code quality with ESLint/Stylelint, and follow Git-based workflows (GitHub, pull requests, AEM Code Sync).

.Troubleshoot cross-browser, CDN caching, and rendering issues support migrations from AEM Sites (traditional) to EDS where required.

Required Skills & Qualifications

.4-7 years of frontend development experience, with at least 1-2 years hands-on on AEM Edge Delivery Services.

Information Classification: Internal

.Strong expertise in vanilla JavaScript (ES6+), semantic HTML5, and modern CSS (Flexbox, Grid, custom properties) - without dependency on heavy frameworks.

.Solid understanding of EDS concepts: blocks, auto-blocking, decoration, fragments, metadata, placeholders, and the three-phase loading model.

.Hands-on experience with Universal Editor (xwalk) authoring on EDS, including component models, definitions, and filters.

.Working knowledge of AEM as a Cloud Service author environment (content structure, publishing, Cloud Manager).

.Good knowledge of web performance optimisation, Lighthouse, and Core Web Vitals.

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Hands-on experience with Git/GitHub and pull-request based development.

.Working knowledge of web accessibility (WCAG), SEO best practices, and responsive design.

.Familiarity with CDN concepts (Fastly, Akamai, Cloudflare) and caching behaviour.

.Strong debugging skills using browser DevTools.