I'm Andrew Walker, a freelance full stack web developer with over a decade of experience building web applications.

I'm available for any website or web app development and have a particular interest in tech for good. Take a look at the work I've done in the past, or get in touch and let's see how we can work together.

Portfolio (freelance)

Word solvers

Managed and updated several high traffic word solver websites. Transitioned sites with millions of monthly users to new tech stacks. Added A/B testing systems with no degradation in performance.

Tools

Vue / Nuxt Svelte / SvelteKit TypeScript Tailwind CSS Cypress Cloudflare

Auction Website

Designed and built the marketing website for a London-based coin auction company.

Tools

Svelte / SvelteKit Tailwind CSS Sanity.io

Portfolio (employed)

Tent

A SaaS platform to enable charities to build online communities for their volunteers and partners. Set up entire architecture with infrastracture as code, CI, automated pull request deploy previews, comprehensive testing, and a component design system.

Tools

Python / Django Vue / Nuxt Tailwind CSS Storybook Cypress AWS

Piclo Flex

Oversaw the frontend architecture for the new energy flexibility marketplace. Set up unit, E2E and visual regression testing suites. Developed tooling to enable the creation of new backend microservices.

Tools

Python / Django Vue / Nuxt Tailwind CSS Storybook Cypress AWS

Eye tracking platform

Sole developer of desktop application for aggregating and visualising eye tracking data on screen-based print media. Led development of web platform for recording and analysing eye tracking data on websites. Introduced TDD, BDD, agile development and CI/CD to the development team.

Tools

Python / Django TypeScript React AWS

Portfolio (other projects)

fePlayground

A tool for building SVG filters. SVG Filters are used to add special effects to SVG graphics. This playground lets you compose various SVG filters together and helps you understand how these filters work.

Tools

Svelte / SvelteKit Tailwind CSS

Heatmappy

A Python library for generating image and video heat maps. Built whilst working at Lumen Research to visualise the results of eye tracking studies.

Tools

Python

What the Press Say

A discontinued Twitter bot that compared how UK press covers breaking news online. Periodically grabbed news from BBC breaking news, found the closest story for each publisher, and made a collage with the results.

Tools

Python

Community detection

My masters project at the University of Birmingham. A tool for visualising community structures (clusters) in graphs.

Tools

Java

Get in touch

You can send me an email at [email protected].

Or reach me on LinkedIn.