Armando is known primarily as an astronomy educator, after 30+ years of extensive public outreach and 10 years teaching in colleges. As one of only a handful of science communicators in Puerto Rico during Comet Halley's last visit, he assumed a pioneering role starting in 1985 when science was just beginning to enter the collective mindset. Over the years, his work as a teacher, speaker and writer, inspired people to pursue interests in science and brought enduring change to Puerto Rican culture. After being accepted into the 2014–2015 Antarctic season of PolarTREC, Armando was assigned to the Amundsen-Scott South Pole Station, where in 2015 he successfully conducted 10 days of work at the IceCube Neutrino Observatory. His affiliations include Ana G. Méndez University, Cupey campus (2014 to 2021), the University of Puerto Rico, Aguadilla campus (2015 to 2017), NASA JPL's Solar System Ambassadors (2004 to 2006), and NASA Space Grant (2017 to 2019) where he served as an affiliate representative.