Internet entrepreneur, philanthropist, and programmer. Co-founder and former CEO of Twitter, Inc., co-founder, principal executive officer, and chairperson of Block, Inc. Also a co-founder of Bluesky, PBLLC.

early product mgr & first lead PM @stripe. product advisor. formerly @twitter @google @yahoo. my tweets are useful for some—useless for many—not for everyone ❤️

Head of Product Strategy at Basecamp. Software dev/design. Author of Shape Up: Stop Running in Circles and Ship Work that Matters https://t.co/KMU1oNWjcE

Bring the Donuts. Coach to product leaders. I write about product management at https://t.co/97Gbgb5FGj. Before: 14 years @Google (he/him)