Yolando is presently managing the Climate Finance Sub-Programme of the secretariat of the United Nations Climate Change Convention based in Bonn, Germany. He has 25 years of experience in national and international climate policy development, managing climate-related projects and the intergovernmental process on climate finance. He has been with the United Nations Climate Change secretariat since 2000 leading the work on technology transfer, capacity building, national communications of developing countries and climate finance.

Before joining the secretariat, Yolando served as a member of the Philippine delegation to the United Nations Climate Change Convention (1992-2000) and actively negotiated on issues related to technology transfer, national communications and financial mechanism. As Country Manager of the International Institute for Energy Conservation from 1997–2000, he implemented the Green Buildings and Sustainable Energy Programmes in the Philippines.