Evan Henley
Technical Lead II at HubSpot
Colorado Springs, Colorado, United States
Summary
👤
Senior🎓
Top SchoolEvan Henley is a Technical Lead II and frontend specialist with 12 years of experience building high-performance React applications, JavaScript SDKs, and rich web UIs from Colorado Springs. He has driven large-scale modernizations at Visa—rebuilding SDKs used by thousands of merchants, cutting checkout times by ~10 seconds, and introducing rollout/rollback systems that safely retired legacy code. Equally fluent in frontend architecture, monorepos, webpack optimizations, and end-to-end testing with Playwright/Cypress, he’s a pragmatic engineer who champions test-driven reliability and developer experience. An active contributor to Redux DevTools, Evan focuses on improving tooling reliability under hot-reload and complex state scenarios. Trained as a classical cellist, he brings a creative, detail-oriented mindset to engineering and spends downtime painting, trail-running in the Rockies, and prototyping elegant UI interactions.
12 years of coding experience
9 years of employment as a software developer
Bachelor of Music, Cello Performance, Bachelor of Music, Cello Performance at Arizona State University
Github Skills (8)
testing10
state-management10
javascript10
redux10
react10
jtest10
jes10
hot-module-replacement8
Programming languages (5)
Github contributions (5)
reduxjs/redux-devtools
Feb 2016 - Feb 2016
DevTools for Redux with hot reloading, action replay, and customizable UI
Role in this project:
Front-end Developer
Front-end DeveloperContributions:17 commits, 1 PR, 8 comments in 8 days
Contributions summary:Evan primarily contributed to the Redux DevTools project by implementing and refining the `instrument` feature. Their work involved adding options like `maxAge` to manage action history and prevent errors. They also addressed issues related to hot-reloading and auto-commit behavior during state updates and reducer replacements. The user's commits demonstrate a focus on improving the reliability and functionality of the Redux DevTools.
devtoolsredux
echenley/pinkyPromise
Apr 2015 - Jun 2015
Contributions:28 commits, 26 pushes, 1 branch in 2 months
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