Leonardo SC Castilho focuses on human rights diplomacy, multilateral governance and international organizations. After working with human rights NGOs in his hometown of Rio de Janeiro, Mr. Castilho joined the United Nations in 2005 and has since then served the Office of the High Commissioner for Human Rights (OHCHR) and the UN Population Fund. He has worked on non-discrimination, development and economic, social and cultural rights. In his most recent position, Mr. Castilho followed multilateral negotiations, including on resolutions of the General Assembly and different High Level Meetings. He began his university studies on Law and International Relations at PUC-Rio, graduated from Sciences-Po Paris with a Master’s degree in International Development and obtained a Master of Studies in International Human Rights Law from Oxford University. He is presently on leave from OHCHR, working on his PhD on Political Science/International Relations, at the Graduate Institute for International and Development Studies.