Dr. Boon is now in the Mass Rapid Transit (MRT) industry in the construction of underground stations and tunnels. Prior to this, Dr. Boon obtained his D.Phil. from Oxford University, and his B.Eng. from Nanyang Technological University. His contribution to ground support design of underground openings, and slope kinematics in 3-D in his doctoral thesis has been acknowledged internationally and has won the Rocha Medal from the International Society for Rock Mechanics (ISRM), and he has given invited lectures at Cappadocia, Seoul, Barcelona and Malaysia. His doctoral thesis advisors are Prof. Guy Houlsby and Prof. Stefano Utili. He is a recipient of the Yang di-Pertuan Agong’s Scholarship, Lee Kuan Yew Gold Medal, Professional Engineers Board Gold Medal (Singapore) and Institution of Engineers (Singapore) Gold Medal. Apart from numerical analysis and analytical work, Dr. Boon is a proponent of engineering judgement, on which he has proposed the concept of Type II Factor of Safety. He is now sited with MMC-Gamuda KVMRT (T) Sdn Bhd, where some advancement in geotechnical engineering of underground works is made jointly with Dr. Ooi LH.