John Graham-Cumming

John Graham-Cumming is the CTO of Cloudflare and is a computer programmer and author. He studied mathematics and computation at Oxford and stayed for a doctorate in computer security. As a programmer, he has worked in Silicon Valley and New York, the UK, Lisbon, Germany, and France. His open source POPFile program won a Jolt Productivity Award in 2004. He is the author of a travel book for scientists published in 2009 called The Geek Atlas and has written articles for The Times, The Guardian, The Sunday Times, The San Francisco Chronicle, New Scientist, and other publications.