2010: Appointed University Professor of Global Letters, University of Wisconsin, Eau Claire.
1994: Appointed Distinguished Professor of Cultural Diversity and Professor of English, University of Wisconsin, Eau Claire.
1992 - 1993: Associate Professor of English and Africana Studies (vg.), Vassar College, Poughkeepsie, New York.
1990 - 1993: Associate Professor of English & Multicultural Literary Studies, Montclair State University, Montclair, New Jersey.
1989 - 1990: Martin Luther King, Jr. Caesar Chavez, Rosa Parks Distinguished Writer and Associate Professor of Africana Studies, College of Lifelong Learning/Humanities, Wayne State University, Detroit, Michigan.
1988 - 89: Acting President, Association of Nigerian Authors (ANA).
1987 - 88: Vice President, Association of Nigerian Authors (ANA), Nigeria.
1988 - 89: Head, Performing Arts Unit, Imo State Univ., Okigwe, Nigeria.
1986 - 89: Associate Professor of English, & Head of Performing Arts Program, Centre for Igbo Studies, Imo (now Abia) State University, Nigeria.
1982-1987: Assistant Professor of English and Head, Performing Arts Program, Federal University of Technology, Owerri, Nigeria.
1980-1981: Assistant Lecturer, Literature in English Department, University of Ife, Nigeria.
1979- 1980: Graduate Assistant, Literature in English Department, University of Ife, Nigeria.