[6][7] He earned a second master's degree in Chinese literature from National Taiwan University.
Kubler worked at the U.S. Department of State's Foreign Service Institute from 1980 to 1991, during which time, he served as Language Training Supervisor over Mandarin, Cantonese, Japanese and Mongolian.
[8] He also served as Principal of the advanced Chinese field school based in Taipei and as Chair of the Department of Asian and African Languages.
[4][7] Over the course of his career, he has authored or coauthored more than 15 books and more than 50 articles on Chinese language pedagogy and linguistics.
He has served as Chair of the Test Development Committee for the SAT Subject Test in Chinese and as member of the Executive Committee of the Association of Departments of Foreign Languages of the Modern Language Association.