Subhan has taught English and courses in Applied Linguistics and Teaching English to Speakers of Other Languages (TESOL) in a number of institutions including Universitas Islam Negeri Syarif Hidayatullah Jakarta, University of Canberra, Trinity College – The University of Melbourne, and the University of Queensland. Overall, he has taught a body of students from 90 countries, including local Australians, Indonesians, international students, migrants, and refugees. He has won teaching awards including Teaching Excellence and has maintained an average course satisfaction rate of 89% throughout his professional career.