Born and raised in Toronto, Lubin graduated from Princeton University with a degree in Electrical Engineering and Computer Science. He worked in the Princeton Robotics Lab, at tomandandy music developing an autonomous music composition tool, and at private research firm Vision Applications Inc. building autonomous mobile robots.

As a software and AI consultant, Lubin worked with eMagine on the Identrus project and was involved in the founding and operation of a hedge fund with a partner. He held positions as Director of the New York office of Blacksmith Software Consulting, and VP of Technology in Private Wealth Management at Goldman Sachs. Through these posts, Joe focused on the intersection of cryptography, engineering, and finance.

In 2014 he met Vitalik Buterin, and joined the Ethereum Project as a co-founder. After the Project was launched, Joe established Consensys. Since 2014 Consensys has been working on the foundational software for web3.