Prof. A. A. Obiniyi started his carrier as a teacher of Mathematic's and Geography in 1986 at Labayi International School, Kaduna State, Nigeria where he established a geographical garden for the school. He proceeded to study Mathematics at Ahmadu Bello University, Zaria, Kaduna State, Nigeria and obtained B. Sc. Mathematics in 1993. With the knowledge of Computer science he obtained in the school, he started working as system analyst/Programmer II at National Agricultural Extension Research and Liaison services (NAERLS) of the Ahmadu Bello University (ABU), Zaria- Nigeria.
Prof. Obiniyi enrolled for two years Postgraduate Diploma in Computer Science programme in Federal University of Technology, Akure, Ondo State, Nigeria in 1996 and graduated in 1998, hence, continued with Master of Technology in Computer science degree which he completed in 2001.
Since 2002, Prof. Obiniyi has been involved in research and teaching till date. He is a member of various local and international professional societies such as Nigerian Computer Society (NCS), Chartered Member of Computer Professionals (Registration Council of Nigeria), Member of Internet Society and has served as external examiner to several institutions and a member of team of editors to several local and international reputable Journals. In addition to these, he is a serving member of Council of both the NCS and the Computer Professionals of Nigeria (CPN). Presently, he is co-supervising six Ph. D. and fifteen Master of Computer Science scholars with two Ph.D. and eight Masters of Computer science completed their studies, and have fifty three (53) publications to his credit. His research interests are in the area of computer networking, Computer security, database development and web enabling applications among others