Matthew Duffin
Principal Engineer at CVS Health
Minneapolis, Minnesota, United States
Summary
👤
Senior🎓
Top SchoolMatthew Duffin is a Principal Engineer with 11+ years focused on front-end engineering and design systems, currently building the next-generation design system at CVS Health. He has led design system efforts and developer experience initiatives at major retailers like Target and Gemini, driving faster delivery, on‑demand releases, and stronger UI consistency across large, multi-site architectures. A long-time student of HTML, CSS and JavaScript, he pairs deep accessibility expertise with practical tooling and advocacy to make interfaces both usable and maintainable. He enjoys solving tricky CSS and accessibility problems and brings a history of introducing React and TypeScript to production teams, helping bridge design intent and scalable engineering. Based in Minneapolis, he combines product-minded leadership with hands-on craftsmanship and a continuing curiosity about how mobile and emerging web technologies will reshape user experiences.
11 years of coding experience
16 years of employment as a software developer
Bachelor of Arts (B.A.) Sociology and English, Bachelor of Arts (B.A.) Sociology and English at University of South DakotaSociology, Sociology at University of Staffordshire
Github Skills (52)
css-in-js10
css10
styled-components10
react-tooltip10
color-blindness10
tooltip10
portal10
tooltips10
react10
testing9
javascript9
chrome-extension9
styles9
modal-dialog9
react-modal9
Programming languages (2)
Github contributions (5)
postrad/tooltip
Jan 2022 - Oct 2023
React Tooltip
Contributions:4 pushes in 1 year 9 months
reactreact-tooltipjavascripttooltipstooltip
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.