Eric Casthart
Staff Software Engineer at Vestwell
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolEric Casthart is a Staff Software Engineer based in New York with 13 years of professional experience and over two decades of hands-on web design and development. He blends product-minded UI engineering with backend and infrastructure work—having helped Vestwell scale from seed to Series C by modernizing front-end architecture, building microservices with Serverless and AWS, and championing structured logging and observability. Equally comfortable sketching design systems as with implementing them in React and Svelte, he has a track record of accelerating teams through monorepos, design systems, CI/CD, and mentoring. His background ranges from early web-era freelancing and agency leadership to shipping fintech-grade APIs and accessibility improvements, and he continues to publish focused UI tooling like a zero-runtime Svelte System. Known for pragmatic cross-disciplinary instincts, he seeks roles that leverage both product design and UI engineering to move fast while maintaining high standards.
13 years of coding experience
15 years of employment as a software developer
Bachelor of Fine Arts (B.F.A.), Advertising / Graphic Design, Bachelor of Fine Arts (B.F.A.), Advertising / Graphic Design at School of Visual Arts
Github Skills (200)
json-schema10
ui-components10
testing10
serverless10
isolation10
data-validation10
localization10
html10
json10
storybook-addon10
intl10
nodejs10
svelte10
react-intl10
calendar-widget10
Programming languages (8)
Github contributions (5)
solidusjs/metadata
Oct 2014 - Apr 2015
Contributions:19 commits, 3 PRs, 13 pushes in 6 months
pushred/gulp-mson-to-json-schema
May 2015 - Feb 2016
Contributions:12 commits, 6 pushes, 3 branches in 9 months
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