Programmers

Mark Zuckerberg

Co-founder and CEO of Facebook’s parent company Meta

Born 1984

Jan Koum

Ukrainian-born co-founder of WhatsApp

Born 1976

Jaan Tallinn

Estonian programmer who co-developed Skype and funds AI-safety research

Born 1972

Eric S. Raymond

Author of The Cathedral and the Bazaar and co-founder of the Open Source Initiative

Born 1957

Dennis Ritchie

Creator of the C programming language and co-creator of Unix

1941 – 2011

David Heinemeier Hansson

Danish programmer who created Ruby on Rails and co-owns 37signals

Born 1979

Chris Wanstrath

Co-founder and former CEO of GitHub

Born 1985

Bruce Perens

Author of the Open Source Definition and co-founder of the Open Source Initiative

Bill Atkinson

Apple programmer who created MacPaint, QuickDraw and HyperCard

1951 – 2025

Audrey Tang

Taiwanese programmer who became Taiwan’s first digital minister

Born 1981