She was a member of the Argentine National Congress both as a National Deputy (1997–1999; 2005–2017) and as a Senator (2002–2005); she also served as Undersecretary of Human Rights in the administration of Fernando de la Rúa from 1999 to 2001 and as a member of the Council of Magistracy (appointed by the Chamber of Deputies) from 2006 to 2010, where she rose to prominence as a staunch supporter of President Cristina Fernández de Kirchner's judicial reform proposals.

[citation needed] She held various administrative positions in Buenos Aires until 1994, when she left for Santa Fe, where she worked as Eugenio Raul Zaffaroni's legal helper for one month.

She got a job on 16 March of that year as the University of Buenos Aires' penal rights and criminology department's secretary, so traveling between Buenos Aires and Santa Fe daily became a burden to Conti, who decided to quit her job in Santa Fe after only one month working there.

[3] Conti was appointed undersecretary of human rights on 12 December 1997, prompting her to forgo her job at Buenos Aires University to concentrate on her new post.

[5] Despite having run on the Frepaso ticket, Conti remained aligned to the Justicialist Party government of Eduardo Duhalde while in the Senate until 2003,[6] when she joined the newly formed Front for Victory of president Néstor Kirchner.

In December 2005, she was elected a deputy for Buenos Aires Province for the Front for Victory and was also known for several corruption acts as a member of the government.