Sean Dempsey
Senior Frontend Software Engineer at ARTDAI
Concord, New Hampshire, United States
Summary
👤
Senior🎓
Top SchoolSean Dempsey is a senior frontend software engineer with 12 years of experience building high-performance, accessible web applications across healthcare, marketing, and agency environments. He has led re-platforming and product efforts—most notably migrating Constant Contact to a Gatsby/React/GraphQL stack and engineering critical diagnostic tools and laboratory systems at Pillar Biosciences using React, Node, Webpack, and AWS. Sean combines hands-on coding with technical leadership, mentoring engineers and coordinating cross-functional teams to deliver measurable improvements in performance and UX. He also has deep WordPress and Magento expertise from agency work, where he improved load times and SEO integrations for diverse clients. A former US Army avionics technician, he brings discipline and systems-level troubleshooting to complex frontend problems. Based in Concord, NH, he’s passionate about accessibility, best practices, and pragmatic engineering that directly impacts users and clinicians.
12 years of coding experience
12 years of employment as a software developer
Bachelor's Degree Information Technology, Bachelor's Degree Information Technology at Southern New Hampshire UniversityAssociate of Science (A.S.) Information Technology, Associate of Science (A.S.) Information Technology at Lakes Region Community College
English
Github Skills (31)
layout8
textmate8
cdn8
css8
atom-editor8
sublime-text8
javascript7
responsive7
sublime7
refined7
js7
react6
sass6
sass-framework6
easing5
Programming languages (4)
Github contributions (5)
sdempsey/sublime-text-snippets
Feb 2014 - Jul 2014
Contributions:10 commits in 5 months
sdempsey/GSRD
Jan 2015 - Apr 2015
Contributions:21 pushes in 3 months
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