Mr Oei is the Technical Director for Figtree Projects Pte. Ltd. and is responsible for the preparation of conceptual structural designs and evaluation of the final foundation and structural designs.
From 1971 to 1977, Mr Oei joined HDB and set up the civil structural engineering section of URA. From 1978 to 1998, Mr Oei took on various roles within the L&M group of companies, a specialist engineering contractor in Singapore, where he was the technical director of L&M Prestressing Pte Ltd, chief executive officer of L&M Geotechnic Pte Ltd and L&M Foundation Specialist Pte Ltd and country director for its subsidiaries in Brunei and Indonesia. Mr Oei joined Yongnam Engineering & Construction Pte Ltd as a technical manager for projects in Singapore, Hong Kong and India in 1999. Subsequently, he joined various other engineering and construction companies as technical director/consultant from 2003, before joining the Group in 2011.
Mr Oei holds a Bachelor of Engineering in Civil Engineering from the University of Sydney. He is a certified Professional Engineer, a registered Accredited Checker with the BCA in Singapore, and a member of the Institution of Engineers of Singapore and American Society of Civil Engineers.