Dayang Halimahtusa’adiah binti Haji 
						Hishamuddin holds the position of Executive Engineer at 
						the Balai Khazanah Islam Sultan Haji Hassanal Bolkiah 
						starting May 3, 2021 and has been appointed as Head of 
						the Building and Security Management Division.
	           			Previously, she had held a position as 
						an Engineer and was placed in the Department of Building 
						Services, Public Works Department (8 August 2009 - 1 
						November 2009). Subsequently, she was arranged to be 
						transferred to the Geotechnical, Geological and Research 
						Section, Department of Technical Services, Public Works 
						Department 
 (2 November 2009 – 31 January 2021). 
						Later, she was seconded to the Public Works Department 
						Belait Branch as Acting Executive Engineer under the 
						Road Section 
(1 Februari 2021 – 1 Mei 2021).
	           		 
	           		
	           			Dayang Halimahtusa’adiah binti Haji 
						Hishamuddin received a Bachelor of Engineering (HONS) 
						degree in Civil Engineering from Queen’s University 
						Belfast, Northern Ireland, United Kingdom in 2007. In 
						2008, she received a Master of Science degree in Project 
						Management from the University of Manchester, United 
						Kingdom.
	           			She passed the Chartered Professional 
						Review examination in 2019 and was subsequently 
						registered as a Chartered Engineer under the Institution 
						of Civil Engineering (MICE), United Kingdom in 2020. She 
						then became a member of the Brunei Darussalam Board of 
						Architects, Professional Engineers and Quantity 
						Surveyors (BAPEQS) in the same year. She was appointed 
						as Delegated Engineer (DE) of the ICE Brunei Candidates 
						by the Ministry of Development.