children birth_place spouse article_title name occupation
2 kiev , ukrainian ssr , ussr nellie minkova 2008 max levchin
 max levchin corporate director at yahoo !
max levchin

maksymilian rafailovych `` max '' levchyn -lrb- ; born july 11 , 1975 -rrb- is a ukrainian-born american computer scientist and internet entrepreneur .
he is the former chief technology officer of paypal , which he co-founded in 1998 .
as cto he is primarily known for his contributions to paypal 's anti-fraud efforts and is also the co-creator of the gausebeck-levchin test , one of the first commercial implementations of a captcha .
in 2002 , he was named to the `` technology review '' tr100 as one of the top 100 innovators in the world under the age of 35 , as well as innovator of the year .
levchin founded slide in 2004 and was involved until 2011 .
in 2004 , he helped start yelp , an online social networking and review service , and is their largest shareholder as of 2012 .
he is involved with other companies as well , for example serving on the board of directors for yahoo! .
