He is co-founder and initial CTO of Xoom Corporation/Eventbrite with Kevin Hartz and Geni.com/Yammer with David O. Sacks.
"[2] He is currently the co-founder and CEO of Textline, a business texting platform.
Sobo was an app for recording and distributing six-second sound snippets.
The New York Times quoted developer Alan Braverman as saying Sobo is "an audio version of Twitter.
"[3] Braverman, who co-founded Yammer,[4][5] was described in 2014 as a "Silicon Valley veteran"[6] when Sobo debuted.