 As a lawyer, she worked for Catalonia's General Union of Workers (UGT), and from 1996 to 1999 served as a member of the National Executive Committee of its Public Services Federation.She was also the union's labour and education secretary, and institutional policy secretary, in the period from 2004 to 2010.From 1999 to 2002, Munté served as chief of staff of the Education Ministry, and in 2002 she was elected to the Parliament of Catalonia, holding a seat until 2003.