Dr. Hassan was assigned as The General Manager of Department Of Health on 2013. He was assigned as Head of the Dep. Of Environmental and Public Health Studies on 2005. He was assigned as head of department of Slaughter houses Management in addition to department of Social Services & Bazaars Supervision in 2001. He was assigned as general manager of Ruqaiqa Municipality in 1995. He was assigned as head of department of Environment & Public Health in Ruqaiqa Municipality in 1993 .He was assigned as head of department of Environment & Public Health in Mubaraz Municipality in 1987. He is corrently working on presented some of the following project to improve the status of the environment of Al-Hassa: – Study the components of Al-Hassa Environment to determine the contaminants and impacts. – Studying the contaminants of Lake Asfar and Implementing Mitigation. – Building a Rehabilitation Center in Al-Hassa to restore the extinct and endangered species.