Sina Mahmoodi said he is leaving the Ethereum Foundation after more than seven years, ending a stint that included work on EthereumJS, eWASM and the Geth client. Mahmoodi said he joined the foundation right after graduating from college, and that his belief in Ethereum's importance remains unchanged even as he leaves to explore new challenges and continue learning. The foundation has not issued an official statement, but the departure appears to be a personal career move rather than a sign of disruption for Ethereum's broader development roadmap.