Jim Tierney
Frontend developer
I'm a frontend developer focused on performance, accessibility, and design systems. I build mobile-first, lean on progressive enhancement, and love incremental improvements. Hard problems and elegant solutions are my jam.
About
A bit about me.
I try to take my work seriously without taking myself too seriously.
Toolkit
Skills & tech.
- Languages
- HTML
- CSS
- JavaScript
- TypeScript
- Frameworks
- React
- Next.js
- Vue
- Svelte
- jQuery
- Styling
- Tailwind CSS
- Bootstrap
- Sass
- LESS
- Foundation
- Tooling
- Webpack
- Node.js
- npm
- Grunt
- Gulp
- GSAP
- Git
- CMS
- Contentful
- Kentico
- Sitecore
- Wordpress
- AI
- Claude Code
- Cursor
- GitHub Copilot
- Design systems development and governance
- Web performance optimization
- Accessibility (WCAG 2.1 AA)
- Agile / user story refinement
- Cross-functional collaboration with UX and design
- Freelance developer hiring and management
Get in touch