1- I started my carrier as a demonstrator in Department of Genetics, Faculty of Agriculture, Cairo University, Egypt, since December 1986. I got my M.Sc. degree in 1990 in the field of cytology and cytogenetics and I used the Banding technique in order to characterize the karyotype of some Gramineous plants.

2- Then I moved to the field of molecular genetics, and spent the period from 1991 until 1997 as a assistant lecturer (research assistant), between Department of Genetics, Faculty of Agriculture, Cairo University and the Agricultural Genetic Engineering Research Institute (AGERI-ARC), Giza, Egypt. My work mainly was focusing on constructing a genomic library and using the available molecular markers by that time (RFLP's and RAPD's) in order to construct a linkage map for the oilseed plants (Brassica oleracae). Also I got some experience on extracting DNA from animals tissue like liver.

3- During the period 1997 – 2002, I got a governmental scholarship in order to finish my Ph.D. from WageningenUniversity, The Netherlands. In my Ph. D. study, I was focusing on mapping the flowering time genes and cloning the most interesting one of these polygenes. I used the Arabidopsis thaliana plants as easy model plant during this study. I used several techniques in order to manage this work, such as QTL-mapping software, |Join map software, Chromosome walking, Real Time PCR, some more advanced molecular marker techniques like AFLP's, CAPS and dCAPS markers. I published out from this work several publications in some famous international journals such as Nature Genetics, Genetics, Plant Biology and Plant Physiology.

4- I got a Post doctor position at Purdue University, Indiana, USA, during the period January 2003 until November 2004. I was working as a team member and my work over there was covering the molecular genetics work in order to map, clone and study the RNA expression level of different (subunits) genes that involve in Actin Related Proteins 2/3 (ARP2/3) complex and WAVE complex that involve as well in controlling the Trichomes shape (Leave hairs) in Arabidopsis thaliana. Our team work at Purdue University end up with several publications in some international journals such as, Current biology, Development, The Plant Journal, and Plant Cell was accepted for publication during the year 2005. I got more experience with computer software and how to use the available data base in order to locate and then isolate some important genes. Also I learn how to use the technique yeast two hybrid in order to study the physical protein-protein interaction.

5- Between the period of 2007-2010, I have prepared several project proposals, that end up with several publications in different international and regional scientific journals.