Alexis Sirkia is a DeFi pioneer and Chairman (or "Captain”) of Yellow, a chain-agnostic ecosystem which completed its public launch in March 2026. Yellow has its own trading platform and a developer toolkit enabling apps powered by state channels and peer-to-peer smart contracts. Raised in Andorra, Alexis trained as an engineer and had early roles at Airbus and the European Space Center. He co-founded GSR, a leading crypto market maker that supported Ripple’s early growth. An award-winning innovator, Alexis has built a semantic search engine and combines work and adventure by sailing around the world while staying connected via Starlink.