Upon her return to Colombia in 1978, Camacho started teaching and researching at the physics department of the Industrial University of Santander, where she remained until 1982. There Beltrán became the research director of the physics department between 1980 and 1982. In 1982 she transferred to the physics department of the Andes University where she occupied various posts, including: Department Director (1984-1988), Postgraduate and Research Coordinator (1990-2005) and Member of the Committee of Teacher Organization of the Faculty of Sciences (2008-2012). Throughout her professional career she has actively participated in the formation of physicists, directing 2 doctoral, 11 masters and 16 undergraduate theses.