Sean Mooney
Engineering Manager at Squarespace
Village of Hastings-on-Hudson, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolSean Mooney is an engineering manager with a decade of experience leading front-end and design platform teams, currently heading Squarespace’s Design Platform where he scales component systems and design systems across product teams. He blends hands-on UI craft—React, TypeScript, CSS, accessibility and performance—with cross-functional leadership coaching engineers, designers, writers and strategists. His background spans senior front-end roles and leadership at Lifion by ADP and product-focused agencies, giving him deep experience in architecting componentized, testable UIs and shipping microservice-backed applications. An active open-source contributor, he has improved the widely used Home Assistant frontend, focusing on UX polish like notification badges and developer tooling links. Based in Hastings-on-Hudson, NY, he pairs a Parsons BFA in Design & Technology with a practical obsession for home automation that informs his user-centric approach. Colleagues know him for pragmatic documentation, strong accessibility advocacy, and turning design intent into reliable, maintainable code.
10 years of coding experience
10 years of employment as a software developer
BFA, Design and Technology, BFA, Design and Technology at Parsons School of Design - The New School
Github Skills (8)
html10
home-assistant10
javascript10
user-interface10
frontend10
lit-element9
web-components9
css8
Programming languages (8)
Github contributions (5)
home-assistant/frontend
May 2019 - Sep 2020
:lollipop: Frontend for Home Assistant
Role in this project:
Front-end Developer
Front-end DeveloperContributions:1 review, 17 commits, 14 PRs in 1 year 4 months
Contributions summary:Sean primarily contributed to the front-end of the Home Assistant project. Their work included adding and modifying links, fixing typos, and improving the user interface. The user also addressed issues related to the display of notification badges and updated repository links within the developer tools. The contributions focused on improving user experience and fixing minor bugs.
user-interfacelit-elementassistanthome-automationwebcomponents
SeanPM5/homeassistant-config
Feb 2019 - Jul 2019
Contributions:7 commits, 6 pushes, 1 branch in 4 months
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