Jono Kolnik
CTO at Sunset
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolJono Kolnik is a CTO and software leader based in New York with a decade of experience building developer-facing front-end tooling and consumer platforms. After co-founding Contrast (YC S18) and Toybox and serving as a senior engineer at Chromatic, he now leads engineering at Sunset while remaining hands-on with product and architecture. He contributes to Storybook — improving toolbars, mobile previews, and URL-driven UI tweaks — highlighting a specialty in developer UX and component workflows. A Boston University-trained computer engineer, he blends startup founder grit with production-grade front-end craftsmanship.
10 years of coding experience
10 years of employment as a software developer
Y CombinatorBS, Computer Engineering, BS, Computer Engineering at Boston University
Github Skills (21)
javascript10
typescript310
components-kit10
storybook10
ui-components10
typescript10
typescript210
ui-design10
component-kit10
javascripts10
typescript-types10
html10
typescripts10
react10
web-components9
Programming languages (4)
Github contributions (5)
storybookjs/storybook
Apr 2022 - Aug 2022
Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation
Role in this project:
Front-end Developer
Front-end DeveloperContributions:8 reviews, 19 commits, 7 PRs in 4 months
Contributions summary:Jono primarily contributed to the UI aspects of the Storybook project. They focused on modifying toolbar components, including adding features like URL parameters to tweak the UI and implementing exclusions. Their work also involved updating and testing various UI components, such as mobile layouts and previews, and fixing related bugs. These changes enhanced the user's control over the Storybook interface.
web-componentsui-developmentvueui-componentsjavascript
contrastapp/roller
May 2018 - Oct 2022
Contributions:19 releases, 154 commits, 19 PRs in 4 years 5 months
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