1. Maintenance of Inverters and PLCs ; “Mitsubishi Electric Maintenance Center”, Dussoldorf Germany 1991 .

2. Industrial Control Designer; Roshdy Metal Co. Zagazig, Egypt; 1994-1997.

3. Maintenance of DC motor Drives; Elalamih Co. for Metal Tubes; Sadat City, Egypt, 1994.

4. Electrical Engineering Consultant; Sesco Trans, Alexandria Egypt 2007-2009. Renewing of Mobile Harbor Cranes and other handling equipment.

5. Electrical Engineering Consultant; the Consultation Unit at Faculty of Engineering (Benha Uni.) 2000-2009.