Sean Cashin
Chief Technology Officer at Highstock
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolSean Cashin is a seasoned technology leader and Chief Technology Officer based in San Francisco with 17 years of experience building and scaling web products across e-commerce, social networking, and enterprise SaaS. He rose through engineering ranks at Socialcast and VMware before spending a transformative period at Instacart as Senior Staff and Principal Engineer, where he focused on large-scale Ruby on Rails systems and platform reliability. Comfortable bridging product, design, and operations, Sean has led cross-functional teams, managed acquisitions, and driven devops automation using tools like Puppet and Chef on AWS. His hands-on background spans Ruby, Rails, JavaScript, MySQL and deployment tooling, and he has a track record of turning small engineering efforts into production-grade, customer-facing platforms. Notably, he blends day-to-day coding pedigree with strategic leadership—helping grow teams, steer redesigns, and operationalize enterprise deployments. He holds a BS in Informatics from UC Irvine and brings a research-rooted curiosity from early NLP and 3D generation work to his approach to product engineering.
17 years of coding experience
19 years of employment as a software developer
University of California, Irvine
Github Skills (78)
srcset10
jquery10
adapter10
read-write10
insert10
imgix10
select29
jquery-plugin9
image9
searching9
scrolling9
selectbox9
jstree9
src9
responsive-images9
Programming languages (5)
Github contributions (5)
scashin133/personal
Oct 2008 - Dec 2008
Contributions:13 commits in 1 month
scashin133/secret_santa_picker
Nov 2018 - Nov 2020
Contributions:1 PR, 10 pushes, 1 branch in 2 years
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