2018 - current, Senior Specialist III, IMRE, A*Star. In charge of TOF-SIMS and AES.
2014 - 2018, Senior Research Engineer III, DSI, A*Star. In charge of TOF-SIMS and AES.
2010 - 2014, Deputy Director, MTS, WinTech Nano-Technology In charge of Surface Division (TOF-SIMS, D-SIMS, XPS, FTIR and AFM).
2005 - 2010, SIMS Group Leader, Principal Engineer, GLOBALFOUNDRIES Singapore/ Chartered Semiconductor Pte Ltd. In charge of TOF-SIMS and D-SIMS group.
2000 - 2005, Research Officer, IME, A*Star. In charge of Chemical Lab (FTIR, GC-MS, TGA, DSC, TMA, DMA and TXRF)
1996 - 2000, Shift Superintendent, Singapore Polymer Corporation Pte Ltd. In charge of PVC plant production.
1986 -1996, Head of Department, Senior Engineer, Qingdao Haiwan Group Pte Ltd. In charge of chemical plant design.