1994-Present: AL’S International conducts research, education and consultation, Roanoke, Virginia, USA.
1982-94: Researcher in Physics and assisted in Physics and related areas, Roanoke, Virginia, USA.
1976-82: Graduate Teaching Assistant or Graduate Research Assistant or Research Fellowships, Department of Physics, and Department of Nuclear Science and Engineering, Virginia Polytechnic Institute and State University, USA. Teaching Astronomy, supervising Physics Laboratory work and teaching assistant in the courses in the General Physics, Principles of Physics for Engineering, Intermediate Electricity and Magnetism, Physics Optics, and Solid State Physics. Assisted in teaching in course in Nuclear Science and Engineering.
1974-76: Graded papers and assisted outside the classroom, Departments of Physics and Mathematics, Pennsylvania State University.
1973-74: Scientist Researcher and Member of the Physics Laboratories Supplies and Equipment Committee, Ministry of Education, Iraq.
1968-73: Teacher, High School and Agriculture Vocation School. Teaching Physics and Mathematics, Iraq.
1966-68: Faculty member of the Teachers' Training Institute, Riyadh. Teacher, high school, Saudi Arabia. Teaching Physics, Mathematics, Chemistry, Geology and Physics Education.