Tagged: yc-s22

David Winer is the Co-Founder and CTO of Ciro (YC S22), an AI-powered go-to-market platform that automates sales prospecting from target identification to booked meetings. With roots in applied mathematics, a Berkeley EECS master's, and a Stanford MBA, he spent time at Bain, Pure Storage, and Google (where he served as PM for the Kotlin programming language and sat on the Kotlin Foundation board) before co-founding Ciro in 2022 with Brown University friends Richard Lee and Ross Geiger. Ciro raised $3.8M in seed funding from CRV, Y Combinator, and SV Angel, and runs on a stack anchored by Anthropic Claude, OpenAI, and Elasticsearch. Outside the office, David self-identifies as an 'exceedingly obscure internet personality' and writes a personal blog mixing statistical deep-dives with essays on bike theft and vegetarianism.