- Editor, Water Science and Technology (IWA journal, IF = 1.6) Since Feb 2013
- Editor, Special Issue for Hydrological Research on flood catastrophes in a changing world (IWA Journal, IF 2.5)
- Associate Editor of Water Science and Technology (International Water Association, Impact factor 1.12), 2008 – Jan 2013
- Chief Editor Malaysian Journal of Civil engineering (2004-2009)
- Editorial Board, International Journal of Applied Engineering (India) (2012-2015)
- International Advisory Board of the Journal of Hydrology and Environmental Research (Australia) 2013-2015
- Editorial Board, International Journal of Civil and Structural Engineering Research and Technology (IJCSERT) http://ijcsert.com/board.html
- Chief Editor, Jurnal Kejuruteraan Awam, UTM (August 2003- Dec 2005)
- Editorial Board Malaysia Water Resources Journal published by NAHRIM
- Member, Research Committee for Malaysian International Hydrology Program (MIHP)
- Member, Review Panel for FRGS and ERGS of the Ministry of Higher Education (Since April 2011)
- Consultant for various projects related to forestry and hydrology, river rehabilitation, flood mitigation and EIA reports
- Technical review panel for various detail EIA reports