Mohammed Tajo began his career as Library Officer in 1977 at the then Gumel Advace Teachers College. In 1982 Mohammed Tajo Moved to Kano State Institute for Higher Education, as Senior Librarian and in 1987 he moved Kano State Polytechnic as Principal Librarian and left as acting Chief Librarian in the year 1987 when he Joined Nigeria Customs Service where he stated career as Assistant Comptroller and ritired on 22nd June 2012 as Assistant Comptroller General of Nigeria Customs Service and entered politics.