Jan Koum
Ukrainian-American businessman and computer programmer
Jan Koum is a Ukrainian-American billionaire businessman and computer programmer. He is the co-founder and former CEO of WhatsApp, a mobile messaging app which was acquired by Facebook in 2014 for US$19.3 billion. Wikipedia
Born: 1976 (age 48 years), Kyiv, Ukraine
Net worth: 15.9 billion USD (2024)
Education: SJSU (1994–1997)
Nationality: American and Ukrainian