Mr Quek chairs the National Supercomputing Centre Steering Committee and co-chairs the National Quantum Strategy Steering Committee. He is also Deputy Chairman of the Office for Space Technology and Industry (OSTIn) and board member of SMRT Trains Ltd, Technology Centre for Offshore and Marine (TCOMS), Singapore, Singapore University of Technology and Design (SUTD), Singapore Institute of Technology (SIT) and NUS High School.

He also sits on the Scientific Advisory Board of the Campus for Research Excellence and Technological Enterprise (CREATE), and Management Boards of the Centre for Remote Imaging, Sensing and Processing (CRISP) and Singapore Nuclear Research and Safety Initiative (SNRSI).

He is a Fellow of the Academy of Engineering, Singapore, and an Adjunct Professor in the NUS Department of Electrical and Computer Engineering.

In his career, he has held various appointments in the defence technology community including Director of R&D at the Ministry of Defence and the Deputy Chief Executive (Technology) of the Defence Science and Technology Agency Board. He was the Chief Executive Officer of DSO from 2004 to 2016, Chief Defence Scientist of MINDEF from 2016 to 2021 and Senior R&D Consultant to MINDEF from 2021 to 2025.

Mr Quek was awarded the President’s Science and Technology Medal in 2023, the NUS Outstanding Services Award in 2023, the Public Administration Medal (Gold) in 2007 and the Defence Technology Prize (Individual) in 1992.