1. Internship House Officer, Sohag University Hospitals from 1/3/1996 to 28/2/1997.
2. Resident in Urology, Urology and Nephrology Center, Sohag University from 1/3/1997 to 28/2/2000.
3. Assistant lecturer of Urology, Urology and Nephrology Center, Sohag University from 1/3/2000 to 26/7/2006.
4. lecturer of Urology, Urology and Nephrology Center, Sohag University from  27/7/2006 to 20/9/2011
5. Associate professor of Urology, Urology and Nephrology Center, Sohag University from 21/9/2011 up till 20/9/2016
6. Professor of urology, Urology and Nephrology Center, Sohag University from 21/9/2016 uptill now
7. Secretery of the endourology section at the Egyptian urological association (from 5/9/2011 TILL 4/12/2017).
8. President of the endourology section at the Egyptian urological association from 4/12/2017 till 4/12/2020).
9. Board member (EULIS) European section urolithiasis -European urological association.(12/5/2017).(Here is the link: http://uroweb.org/section/eulis/information/ Please click on 'board' on the left side and e 'pop-up-screen' will open automatically). 
10.  Reviewer in the Egyptian Professors graduations committee (26/7/2017).
11. Board member - PCNL group (IAU) - INTERNATIONAL ALLIANCE UROLITHIASIS (2 -10- 2018)

 10 - Reviewer in the Egyptian Professors graduations committee (26/7/2017).