He started working for BGC Partners , then known as Cantor Fitzgerald , in 1995 , when he was Senior Managing Director in New York City . A year later , he was transferred to the London office . He served as its co-Chairman and co-Chief Executive Officer alongside Howard Lutnick from 2001 to 2008 , when he became Vice Chairman . He also served as the Chief Operating Officer of eSpeed , an electronic trading tool of US Treasuries , from 2001 to 2004 . Shortly after the September 11 attacks , when 658 of BCG employees died , Amaitis helped rebuild the company
September 11 attacks
September 11 attacks
Lee M. Amaitis