About
I'm Jo Sprague, a software engineer who has been building for the web for 22 years. Since 2008, I have run my own company and worked with organizations including Mozilla, NASA, Climate Central, and the Humanitarian OpenStreetMap Team.
My focus is the front end. I build design systems, component libraries, and platform tooling that help teams ship consistent, accessible products, with deep work in accessibility, internationalization, performance, and CI/CD. My recent work focuses on design systems that developers and AI coding agents can both use correctly. I have also contributed to open source projects including Webpack, WordPress, and Mozilla.
I studied mass media communication at the University of Akron, with minors in computer science, global business, and graphic design. That mix still shapes my work: I think about audiences, communication, and visual craft along with the code.
Outside of work, I'm a multinational and endlessly curious person. I'm a citizen of the United States and Hungary, I speak English, Spanish, and Hungarian, and I have traveled to more than 40 countries. I'm queer, I care about how people connect and communicate, and I have experience mentoring and facilitating consent workshops. When I step away from the keyboard, you'll find me outside in the sun, surrounded by trees and good people.
The work I care about
Interested in working together? Hire me
