Jeffrey Czyz

Jeffrey Czyz is an Open Source Bitcoin Developer currently working at Spiral (formerly known as Square Crypto).12 He has a background in Computer Science and Engineering and previously worked as a Software Engineer at Google.2 Czyz is part of the inaugural developer team at Square Crypto, having been hired along with Valentine Wallace and Arik Sosman in September 2019.46

Czyz is actively involved in Bitcoin development, particularly focusing on BOLT12, which he believes "Makes Bitcoin Digital Cash".3 He has given presentations on this topic, including one in May 2024 in Austin, TX during the bitcoin++ script edition.3

As an open-source developer, Czyz contributes to projects aimed at advancing Bitcoin technology and promoting mass adoption through open-source initiatives.5 His work at Spiral involves developing free open-source tools for the Bitcoin developer community.6

Jeffrey Czyz's LinkedIn username is jkczyz, and he has 396 connections on the platform.1 He is based in the United States and received his education from the State University of New York at Buffalo.1