Juhwan is a sociologist with training in sociolegal studies, ethnic studies, and queer studies. He is affiliated with the Asian American Studies Program, Feminist, Gender, & Sexuality Studies Program, and Latina/o Studies Program. Juhwan has taught with Cornell's Asian American Studies Program, Department of Sociology, and Prison Education Program.

At Cornell, Juhwan plays with 14Strings!, a Filipino guitar ensemble (rondalla). Before grad school, Juhwan worked for an immigration advocacy nonprofit, where he conducted education policy research and organized immigrant communities. At Harvard, he led the movement for ethnic studies, managed a chamber orchestra, and taught health education at high schools.