Mr. Mohang Selim Uddin is currently serving as the Secretary of the Government of the People's Republic of Bangladesh. He began his career as an Assistant Commissioner and Magistrate in Naogaon district. Later, he served as an Assistant/Senior Assistant Commissioner in Chandpur, Bandarban Hill District Council, and Bandarban district. He also served as the Upazila Nirbahi Officer in Ramu Upazila of Cox's Bazar district and as the Deputy Commissioner in Bhola district. In addition, he has held important responsibilities as Senior Assistant Secretary/Deputy Secretary/ Joint Secretary/Additional Secretary in various departments including the Ministry of Power, Energy and Mineral Resources, Planning Ministry, Ministry of Health and Family Welfare, Ministry of Commerce, and Ministry of Industries.