From 1980-1991 he was employed at the Foreign Service Institute, U.S. Department of State, where he served as Language Training Supervisor in Mandarin, Cantonese, Japanese, and Mongolian; as Principal of the advanced Chinese field school in Taiwan; and as Chair of the Department of Asian and African Languages.

Since joining Williams College in 1991, he has chaired the former Department of Chinese and Asian Studies Program as well as the Department of Asian Studies, which he was instrumental in founding. He has also served as visiting professor at Eisenhower College, Portland State University, Middlebury College, National Taiwan Normal University, Chinese University of Hong Kong, and Wenzao Ursuline University of Languages.

Kubler, who is author or coauthor of 20 books and over 50 articles on Chinese language pedagogy and linguistics, frequently serves as reviewer or consultant for Chinese and Asian Studies programs in the U.S. and overseas. 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. He is currently serving as American Co-Director of The Johns Hopkins University-Nanjing University Center for Chinese and American Studies in Nanjing, China.

Jerling Guo Kubler is a graduate of the Department of Foreign Languages and Literatures of Soochow University, Taipei. Her experience in language education spans more than 35 years. She has taught all levels of Chinese as a Second/Foreign Language from pre-kindergarten to university level at institutions including Williams College, Eisenhower College and Taipei Language Institute.