Work Experience

• 2025 - present

  Persimmon Homes PLC (FTSE 100)

  Warrington, UK

  Senior Full Stack Engineer

  • Developed features within a composable architecture, enabling independent deployments, greater scalability and faster feature delivery.
  • Built and maintained a Storybook component library, improving component reusability, documentation and design consistency across the platform.
  • Leveraged AI agent workflows (Claude Code) to accelerate delivery, using specialist frontend, backend, testing and research agents to complete weeks of work in days.
  • Maximised usage of our Headless CMS system to allow marketing teams to create content on the fly. Implemented data driven plot/development/scheme pages powered by upstream PIM system.
  • Designed and implemented a custom static site generation pipeline, delivering a static-first architecture that significantly improved application performance.
  • Collaborated with engineering leadership and change management to establish streamlined deployment governance and release processes.
  • Built multi-environment GitHub Actions pipelines, reducing production deployments from hours to minutes and enabling multiple daily releases.
• 2021 - 2025

  THG

  Manchester, UK

  Full Stack Engineer

  • Worked across three engineering teams, gaining end-to-end experience spanning cloud infrastructure, backend services and frontend e-commerce development.
  • Delivered complex third-party integrations, including PowerReviews and Obsess VR, enhancing the e-commerce experience for enterprise clients.
  • Helped deliver the migration of Homebase's e-commerce platform to a modern Node.js/TypeScript architecture, rebuilding core features including Click & Collect and Store Locator.
  • Migrated applications from dedicated virtual machines to the company's Kubernetes platform, improving scalability and operational efficiency.
  • Configured Kubernetes-basedGitHub Actions Runner Controller (ARC) runners to support the team's CI/CD workflows.
  • Onboarded major UK and international brands onto their latest TypeScript/NextJS ecommerce retail platform including Homebase, Heinz, Lyle & Scott, Matalan, White Stuff and more.
  • Developed and maintained backend services in Java and Python, supporting business-critical e-commerce applications.
• 2015 - 2021

  The Travel Visa Company

  Crewe, UK

  Digital & Technology Solutions Apprentice

  • Progressed from social media and graphic design into web development over six years, building WordPress sites and UI components informed by design principles and brand guidelines.
  • Built a PDF visa application pack generator with a dashboard UI, and redesigned a visa requirement widget that boosted user engagement - all while completing a first-class Digital & Technology Solutions degree (Software Engineering pathway).
• 2014 - 2015

  Gees Kitchen

  Sandbach, UK

  Kitchen Assistant

  • Pot washing, general prep work and kitchen hygiene. Humble beginnings.

Personal Projects

Maximum Bookings

Multi-tenant restaurant reservation system built on Cloudflare Workers. A single deployment serves a Preact frontend and Hono REST API, backed by Cloudflare D1 (edge SQLite) database. The project was built end-to-end with Claude via a custom Squad agent framework - a team of named AI specialists with defined roles, living inside the repo with shared docs as persistent memory. Business rules, capacity logic, and data models live as markdown files that serve as the single source of truth for both the implementation and the AI team's persistent memory across sessions.

Preview

RedcowV2

Content focused custom whitelabel platform tailored towards small local pubs, restaurants and cafes aiming to provide an incredibly performant site to rank highly in search engines. Built using AstroJS and plain vanilla CSS with a focus on accessibility and SEO. No CMS, branded data is simply stored in a structured .ts file and compiled during build time for pure simplicity and ease.

Visit the site

Quickcarsearch.io

NextJS and Styled Components web application for finding the cheapest car based on your budget. I created with the aim of being extremely performant, user friendly, SEO friendly and accessible - the site achieved a score of 100 for every lighthouse metric. Dockerised and deployed using AWS Amplify.

View project on GitHub

THG Status

Internal healthcheck tool using a NextJS 13 & Tailwind UI, ExpressJS API and MSSQL database. A CRON GitHub pipeline ran every 3 minutes to fetch http status codes which the API would serve as JSON. The UIs job was purely to display the data and allow users to keep track of endpoints that were important to them. The API did a lot of the heavy lifting e.g. interacting with the database and generating the json data for the UI to consume.

Outliner

Chrome extension that visually highlights the various different widgets on a THG site and displays important information each widget such as the type and ID number.

View on Chrome Web Store

Jameshealy.co.uk

I built jameshealy.co.uk as a project to modernize my old portfolio and experiment with the latest technologies. The site has been built using Astro JS and styled with Tailwind / Daisy UI. I'm excited to see how these tools can be used to create even more impressive projects in the future.

View on GitHub

Achievements

Feel free to add me on LinkedIn and we can chat!