Research Engineer in research section in Egyptian Electricity Authority in Cairo from 1988- 1992. Network Engineer in Alexandria Electricity Zone from 1992-1994. Assistant Lecturer Electrical and Computer Control Engineering Dept. in Arab Academy for Science, Technology and Maritime Transport from 1994- 1998. Lecturer in Electrical and Computer Control Engineering Dept. in Arab Academy for Science, Technology and Maritime Transport from 1998- 2004. Assistant Professor in Electrical and Computer Control Engineering Dept. in Arab Academy for Science, Technology and Maritime Transport from 2004- 2010 Assistant Dean for Graduate Studies and Scientific Research Sep 2008 – Jul 2010 Professor of Power Engineering, March 2010 Dean of Productivity & Quality Institute 2010-2012 Professor in Electrical Engineering & Control Dept. College of Engineering, Alexandria since August2012 till now