Meet The Team

Samuel Kim is a founding partner of Umbrella Network, a layer-two oracle empowering the next generation of DeFi applications. Previously, he was the founder and CEO of Lucidity, a blockchain-based transparency solution for digital advertising and a co-founder of Gimbal, a mobile advertising platform. He is a graduate of Columbia University and received his MBA from Chicago Booth School of Business, where he concentrated in analytic finance.

Dariusz is a senior blockchain engineer at Umbrella Network. He works closely with Alex Voloshko in the design and development of Umbrella’s oracle. He is a certified Ethereum and Quorom developer with several years of blockchain experience. He is most proud of his implementation of an efficient Plasma Cash while working at Lucidity. He has a strong interest in Zero Knowledge Proofs and continues to do research in his spare time.

John Chen is the Head of Marketing at Umbrella. He is also the Founder and CEO of CPXi Asia, an independent regional digital media agency serving Southeast Asia with offices in Singapore, Indonesia and Malaysia. John is an experienced entrepreneur with over 20 years experience starting and operating businesses with global presence and across multiple verticals spanning media and advertising, consumer goods, and offline events. He received his BA from Columbia University, where he studied Computer Science and Economics.