J. (maurelian_) is a security engineer at ConsenSys Diligence, where he works to ensure that Ethereum smart contracts are transparent, trustworthy, and reliable. He helped build a decentralized name registrar for the Ethereum Name Service; authoring the spec and auditing the final implementation. He is a regular writer and speaker on smart contract security. Prior to joining ConsenSys, Maurelian worked at Coinbase.