Concurrently, Hoa serves as a consultant for the International Financial Corporation (IFC)/World Bank Group, supporting the banks and private sector on climate finance and green economy. She is active also in fields of Environmental Quality Management and Plastics Pollution Reduction, being a technical consultant for various donor funded projects in Vietnam. She used to serve as the Environmental and Climate Change Technical Specialist to Global Affairs Canada and as the Program Manager/Policy Analyst for the Environmental Defense Fund (EDF), a leading US-based Environmental Organization, seeding the very first climate change mitigation project on rice paddy in the Mekong Delta. She holds a PhD in Environmental Engineering from the University of Michigan at Ann Arbor, USA and a Master in Applied Environmental Geosciences from the University of Tuebingen, Germany. She received a BS in Chemical Engineering from Hanoi University of Science and Technology, Vietnam.