Appointed Acting Executive Secretary of the Convention on Biological Diversity (CBD) with effect on 1 December 2019. Formerly, Director of the Law Division at the UN Environment Programme (UNEP), and worked with UNEP for over two decades. Prior to joining the Law Division in June 2014, was Deputy Director of the Ecosystems Division, in charge of coordination, operations and programme delivery from 2012 and for one year also served as Acting Director to the same Division. 2018, concurrently also Acting Director of the Corporate Services Division. Formerly with Tanzania’s Ministry of Foreign Affairs and International Cooperation, latterly as a Counsellor/Senior Legal Counsel; lectured in Public International Law and Conference Diplomacy at Tanzania's Centre for Foreign Relations and Diplomacy. Pro bono lecturer at the University of Nairobi Law School and formerly with the International Development Law Organization, Rome, Italy. Lawyer and career diplomat. LLB (Hons), University of Dar-es-Salaam, Tanzania; LLM, Dalhousie University, Halifax, Canada; Postgraduate Diploma in International Relations and Diplomacy (Hons), Centre of Foreign Relations and Diplomacy, Dar-es-Salaam, Tanzania. Has published articles on international environmental law, compliance and enforcement of conventions and developed several multilateral environmental agreements negotiation tools, handbooks and guidelines currently used by UNEP in its capacity-building programmes.