Ochir has been a professor at the Mongolian University of Science and Technology since 1965. She held the positions of assistant professor, associate professor and professor, teaching courses in petrology and petrography. She served as the head of the universitys Department of Geology and Mineralogy from 1978 to 2009. She has also served as Director of the universitys Geoscience Center since 2001.
Ochir has carried out field and basic research work through joint expeditions of the Russian and Mongolian Academies of Sciences. She is the author of over 350 scientific publications and was the lead editor of the book Mineral Resources of Mongolia.
Ochir served as vice president of the International Union of Geological Sciences for four years. She is an adjunct professor at the Institute of Mineral Resources of the Chinese Academy of Geological Sciences and a foreign member of the Russian Academy of Natural Sciences.
Ochir is an Honoured Scientist of Mongolia. She was presented with the Jan Masaryk Medal by the Czech Ambassador in 2021.