1. (1985 – 1989), Resident in Anesthesia and Intensive Care Unit in Aleppo University. 2. In 1989 Registered Specialist in Anesthesia and ICU. 3. (1990 – 1997), Specialist Doctor in Alwatani Hospital, Syria. 4. (1998 – 2000), Specialist in Anesthesia and ICU in King Fahd Hospital, Saudi Arabia. 5. (1999 – 2001), Senior Registrar in Anesthesia and ICU in Al Mostaqbal Hospital in Saudi Arabia. 6. (2001 – 2008), Senior Registrar in Anesthesia and ICU in King Fahad Armed Forces Hospital in Saudi Arabia. 7. (2008 – 2012), Consultant in Anesthesia ICU in Alwatani Hospital in Syria. 8. (2012 till now), Consultant in Anesthesia and ICU in King Fahd Armed Forces Hospital in Saudi Arabia. 9. Chronic pain management and regional anesthesia 10. Instructor in regional Anesthesia Ultrasound Guided 11. Chronic pain management and all procedures under ultrasound and C-arm guided