Josh Stark, a prominent senior leader at the Ethereum Foundation (EF), will leave the organization at the end of April 2026 after five years of service. He announced his decision on social media platform X on April 16, describing his time at the foundation as "a great honour." Stark's departure marks another significant change in an ongoing leadership reset within the core organization supporting the Ethereum blockchain.
Stark joined the Ethereum Foundation in 2019, initially working on the special projects team before moving into senior leadership roles. His responsibilities expanded to encompass operations, strategy, and public communication. He worked closely with Executive Director Aya Miyaguchi and Ethereum co-founder Vitalik Buterin, and served on the management team with co-executive directors Hsiao-Wei Wang and Bastian Aue. During recent organizational shifts, he was named a board "co-steward" and was listed as co-chair of the Trillion Dollar Security initiative for Ethereum.
His tenure coincided with several of Ethereum's most critical technical milestones. Stark helped steward "The Merge," the network's transition from proof-of-work to proof-of-stake consensus. He also supported subsequent major upgrades including Dencun, Fusaka, and the upcoming Pectra upgrade, which have focused on improving scalability, reducing fees, and enhancing network capacity. Stark became a familiar public voice, coordinating technical messaging and ecosystem communication for these complex developments.
Stark stated he has "made no plans for the future" following his exit, intending to take a long break to reset and spend time with family and friends after years of intensive work. Beyond his EF role, he co-founded ETHGlobal, which organizes global Ethereum hackathons, and the venture studio L4.
His exit is part of a broader pattern of leadership changes at the Ethereum Foundation. Earlier this year, Tomasz K. Stańczak stepped down from his co-executive director role after less than a year. On April 15, Trent Van Epps also announced his departure to focus full-time on Protocol Guild, a funding mechanism for core developers he co-founded. These moves signal an internal restructuring as the foundation refines its priorities.
The organization has recently renewed its focus on scaling the Ethereum mainnet and strengthening core base layer values, which it ties to cypherpunk principles like censorship resistance, open-source development, privacy, and security. Stark's departure adds another layer to this period of organizational adjustment, which includes shifts in staffing, leadership titles, and public strategy updates.
