 Hansson worked as an economist in the World Bank from 1998 to 2012 with Eastern European and Balkan countries and China.In 1993-1998 Hansson belonged to the Supervisory Board of the Bank of Estonia, in 1992-1995 and in 1997 he was economic adviser to the Prime Minister, and in 1991-1992 adviser to the Ministry of Foreign Affairs.He was also a member of the Monetary Reform Committee.