All-Star Team

Our team has been around since the inception of the blockchain revolution, and with 60 years of combined IT expertise, we bring a pragmatic approach to building enterprise-grade solutions with this exciting technology.

Team Member

Simon Jentzsch

Founder & CEO

With prestigious clients including Siemens and Bahn AG, Simon has been deploying enterprise solutions for the last 20 years as Project Manager, Developer and Software Architect. Simon is now leading the development of the foundation Slock.it framework, enforcing Ethereum smart contracts into the physical world.

Team Member

Christoph Jentzsch

Founder & CTO

Christoph's background is in theoretical physics, where he developed optimized software solutions for high performance computing on specialized hardware. Christoph has been part of the Ethereum project since 2014 as Lead Tester, securing and shaping the core protocol while working on the backend of the C++ client.

Team Member

Stephan Tual

Founder & COO

Previously CCO for the Ethereum project, Stephan has three startups under his belt and brings 20 years of enterprise IT experience to the Slock.it project. Before discovering the Blockchain, Stephan held CTO positions at leading data analytics companies in London with clients including VISA Europe and BP.

Team Member
Lefteris Karapetsas
Lead Technical Engineer

After graduating from the University of Tokyo, Lefteris developed backend software for companies such as Oracle. He has been part of Ethereum as a C++ core developer since November 2014, having worked on Solidity, the ethash algorithm, the core client and the CI system.

Team Member
Griff Green
Community Organizer

Griff recently obtained his Master of Science degree in Digital Currency and is one of the first people in the world to have a degree in this rapidly evolving field. He has been traveling around the globe for the last several years promoting digital currencies including in Ecuador and Indonesia.

Team Member
Colm Herbert
Security Engineer

Colm, who holds a BENG from Maynooth University and a MSc from UCD, joins us after working as an application security specialist at a payment processing company. He is a longstanding member of our community and has been involved with the development of the DAO 1.0 Framework since January.

Board of Advisors

Team Member

Dr. Christian Reitwießner

Creator of Solidity

Christian is the main developer of the Ethereum smart contract programming language, Solidity