Japanese businessman
 is a Japanese businessman, and the founder, CEO and one-third owner of the online marketplace Mercari.
Early life.
Yamada earned a degree in mathematics from Waseda University.
Career.
His first job after university was as an intern at Rakuten, then a little-known e-commerce company, for whom he developed an auction website.
In 2001, he founded Unoh, a games company, that was bought by Zynga in 2010.
Yamada became a billionaire following Mercari's IPO in June 2018.
References.
 ;templatestyles src="Reflist/styles.css" / ;