Danno Ferrin is Principal Software Engineer at Hedera Hashgraph, where he spearheads the smart contract environment in the Hedera network. Previously he was Lead Protocol Engineer at ConsenSys Software Inc on their Ethereum Mainnet team, where he chose to go "full crypto" after leaving Google. Danno has 8 years of direct developer experience in various blockchain projects, and over 20 years in a broader range of Open Source projects such as The Groovy Programming Language, OpenJDK, Apache Ant and Apache Tomcat. His favorite colors are green and orange, and can sight read RLP. Danno is a maintainer for the Hyperledger Besu project, and sits on the Technical Steering Committee, where he is Vice Chair.