Internet Entrepreneur, Technologist Extraordinare
San Francisco Bay Area
Internet Entrepreneur, Technologist Extraordinare
San Francisco Bay Area
I start and run companies.
Cryptography, product and user-interface design, security, web applications, multi-tier server and network design.
Starting, building, running companies; recruiting, building, running engineering teams; architecting, building, launching large-scale software products.
(Privately Held; 11-50 employees; Internet industry)
January 2005 — Present (3 years 9 months)
That's right -- I've started a new company, and it's going to take over the world again! But I still need a few good people to help me with it. Ping me if you want to know more.
(Public Company; 501-1000 employees; Internet industry)
January 1999 — December 2002 (4 years)
Co-founded PayPal and was its Chief Technology Officer for four years, seeing the company through development, launch, merger with a arch-rival, two CEO removals, going public and being sold to eBay. Recruited the engineering team, designed and built the networks and software running PayPal site and back-end, designed and built PayPal's (somewhat notorious) security and fraud-prevention systems.
BS, Computer Science, September 1993 — May 1997