Ethan Blumenthal
Founding Engineer at Castle
Miami, Florida, United States
Summary
👤
Senior🎓
Top SchoolEthan Blumenthal is a founding engineer and full-stack product developer with nine years of experience building FinTech and PropTech platforms that expand economic opportunity. He has led engineering at startups that tokenized commercial real estate, launched the first SEC-qualified home equity investment origination platform and retail product, and now architects vendor-agnostic Bitcoin treasury and revenue automation for SMBs and CRE at Castle. Comfortable across product, backend, and integrations, Ethan combines practical engineering with domain fluency in real-world assets and emerging crypto rails. His background in economics plus graduate-level computer science study gives him a rare mix of market intuition and technical rigor. He favors pragmatic automation—simplifying operations and preserving capital—rather than speculative tinkering. Based in Miami, he brings founder-level ownership and a track record of shipping industry-first financial infrastructure.
9 years of coding experience
5 years of employment as a software developer
Master of Science - MS, Computer Science, Master of Science - MS, Computer Science at The University of Texas at AustinCertificate, Software Engineering, Certificate, Software Engineering at Fullstack AcademyBachelor of Arts - BA, Economics, Bachelor of Arts - BA, Economics at University of Illinois Urbana-Champaign
Stackoverflow
1reputation
0reached
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Github Skills (5)
github9
git9
patch7
javascript7
subversion5
Programming languages (6)
Github contributions (5)
nadalabs/cityfunds-marketing
May 2023 - Sep 2024
Contributions:16 reviews, 203 PRs, 441 pushes in 1 year 4 months
cheer-app/cheer
Mar 2019 - Apr 2019
Contributions:57 PRs, 34 pushes, 88 branches in 19 days
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