Entrepreneur, Developer and Blockchain Expert. Marcel founded his first media company in 2014 to work on the first decentralized use case for DOOH. The solution was presented by the Deutsche Telekom as best practice in digital transformation at CEBIT 2015. After two years he sold his company shares to an investor and joined the chemical industry to work on blockchain use cases especially for supply chain finance. At AZHOS he develops payment solutions for the chemical industry on a smart contract platform.