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San Francisco Bay Area United States

Writes software, dreams.

I'm a designer, engineer, and investor in early stage startups. Previously a partner at Y Combinator. Invested in and directly worked with over 700 companies in 5 years from the earliest possible stage, often just an idea. Also had the luck of being an angel investor in seed rounds for successful startups including Zenefits, Instacart, Coinbase, Teespring, Genius, Envoy, Color Genomics, Patreon, LendUp, Flexport, Clever, Airware, Eero, Comprehend, Tilt, Lever, Sift Science, Lob, OpenDoor, Blend Labs, Flightcar, Meteor, Digit, Boosted Boards, Panorama Education, Eero, Lead Genius, Bloom That, Cruise Automation, Ridecell, Heap, Gobble, AeroFS, OrderAhead, MoveLoot, HelloSign, and many mo...