Winston Chang has previously served for over two decades in the Singapore Armed Forces and in various operational command and training positions with the Singapore Civil Defence Force in Singapore. His international experience in disaster management and response include deployments as part of the United Nations Disaster Assessment and Co-ordination (UNDAC), to sudden onset Emergencies, including the Indian Ocean tsunami – Meulaboh, Indonesia, Pakistan Kashmir Earthquake, Cyclone Nargis in Myanmar, the Solomon Islands Tsunami, Typhoon Morakot in Taiwan and the Nepal Gorkha Earthquake.
Currently he is currently based in Geneva, Switzerland with the United Nations Office for the Co-ordination of Humanitarian Affairs (OCHA) Geneva and is the global International Search and Rescue Advisory Group (INSARAG) Secretariat Thematic Focal Point.
His portfolio includes engaging and working closely with disaster response management authorities from national governments, regional organisations, NGOs and a wide range of other relevant stakeholders on disaster preparedness and response at all levels, and in accordance to the UN General Assembly (GA) Resolution 57/150 on Strengthening the effectiveness and Co-ordination of international urban search and rescue assistance.
He is also responsible for the INSARAG external classification (IEC) system, with 49 global teams successfully classified to date.