Abhishek Mistry went out on top.
'A lot of people were surprised', he said.
Mistry, 33, became the latest in a slow drip of bankers leaving Wall Street to follow their bliss. Mixcity already has been in business seven years and has sold DJ software in 80 countries - including to DJ Pauly D from the TV show 'Jersey Shore'.
Other bankers have jettisoned jobs in finance for French cooking, concierge services for New York residents and online forums.
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