Summary
Jason Rosenstein is a New York-based entrepreneur and software engineer with nine years of hands-on experience building blockchain-enabled products and crypto infrastructure. He co-founded Blockchain of Things and Coinographer, and led Portion as founder from 2016 to 2023, turning ambitious crypto concepts into practical, scalable ventures. An early bitcoin visionary, he has bridged hardware and software—from turnkey mining systems to cryptographic ledgers that support device networks and chain-of-custody workflows. His career spans iOS development, system analysis, and operations, reflecting a product-focused engineering mindset that ships secure, auditable solutions. Jason holds computer science education from NYU and Muhlenberg College, grounding his entrepreneurial rigor in a solid technical foundation.
9 years of coding experience
10 years of employment as a software developer
Computer Science, Computer Science at New York University
Allentown High School
Computer Science, Computer Science at Muhlenberg College