Jon Koon
Senior Engineering Manager at HubSpot
Belmont, Massachusetts, United States
Summary
🤩
Rockstar🎓
Top SchoolJon Koon is a seasoned software engineering leader with 14 years of experience building full‑stack web products and leading engineering organizations at both startups and large tech companies. He co-founded and served as CTO of Charityvest, single‑handedly shipping the MVP and growing the product to process over $50M in donations while building the backend, payments plumbing, and a React design system. At Twitter he was a key architect and tech lead on the React rebuild of twitter.com and the UI foundation/design system used across teams, and more recently he drove revenue‑impacting platform features at HubSpot for objects, properties, and associations. Jon combines hands‑on engineering with people leadership—having scaled teams from single digits to 40+ engineers—and a knack for pragmatic architecture such as event‑driven microservices and graph‑based funds flow. Based in Belmont, MA, he blends startup grit with enterprise delivery, prioritizing user delight, accessibility, and robust operational practices.
14 years of coding experience
16 years of employment as a software developer
Y CombinatorComputer Science, Computer Science at Georgia Institute of Technology
Stackoverflow
604reputation
41kreached
2answers
0questions
Github Skills (97)
css-in-js10
tslint10
react-components10
react-native-web10
localstorage10
typescript10
cross-platform10
eslint10
gui-framework10
eslint-config10
react-native10
react-dom10
plugin10
eslint-plugin10
react10
Programming languages (6)
Github contributions (5)
jondkoon/jquery.cascadingList
Apr 2012 - Jul 2012
Contributions:18 commits in 3 months
widgetosxjqueryidealtraverse
jondkoon/crushed
Aug 2018 - Sep 2018
pico-8 game for ludum dare 42 - Play it in your browser!
Contributions:5 PRs, 47 pushes, 8 branches in 27 days
gamebrowserjavascriptpico-8ludum-dare-42
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