She served as general secretary of the Ministry of Foreign Trade, Minister of Justice and Law, and National Registrar.
[2] In addition, she served as legal secretary and deputy director of the Administrative Department of the Presidency, ad hoc legal secretary to learn about matters related to the events that occurred in the Palace of Justice siege by the 19th of April Movement,[3] delegate for administrative contracting, and adviser of the Ministry of Development.
[4] In August 2002, Rengifo became National Registrar in the administration of President Álvaro Uribe.
[6] She served as executive director of the Scenarios Corporation, and was a postgraduate speaker at the Xavierian University, within the Faculty of Legal Sciences.
She was general secretary and head of the legal office of Telecóm at Caracol Radio's Primera Cadena Radial Colombiana SA.