Juhwan is broadly interested in the impact of legal bureaucracy on immigrant communities, including how immigration policy affects family formation for queer immigrants and how businesses hire low-wage immigrant workers in ethnic communities. He is affiliated with the Asian American Studies Program (AASP), Feminist, Gender, & Sexuality Studies Program (FGSS), and Latina/o Studies Program (LSP). Juhwan received his B.A. in Sociology and Women, Gender, and Sexuality Studies from Harvard University.

At Cornell, Juhwan plays with 14Strings!, a Filipino guitar ensemble (rondalla), and mentors undergraduate students on pursuing graduate studies with Graduate Students Mentoring Undergraduates. He previously worked for the Mario Einaudi Center for International Studies. Before coming to Cornell, 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.