Jan Koum Bio Details
Date of birth
Computer Engineer (1998 - 2007)
Emmigrated from the Ukraine to California with his mother when he was 16.
Co founded WhatsApp, the world's biggest mobile messaging app service, with Brian Acton in 2009 and sold it to Facebook in 2014 for a reported $19 billion.
Sits on Faebook's board of directors.
In 2014 WhatsApp had over 450 million users
Co Founder and CEO of WhatsApp