1. Assist the Executive Secretary, the Director of the Legal and External Relations Division and other senior staff in preparation for meetings with high-ranking governmental officials, participation in high-level multilateral conferences, and outreach missions;
2. Assist senior staff production of persuasive written analysis and concise reports on issues related to the Treaty and the work of the Organization, and assist in the preparation and implementation of action-oriented strategies on ways to address challenges and promote the universalization of the Treaty;
3. Establish productive professional working relationships with a wide-range of internal and external stakeholders relevant, and collaborate those stakeholders in the preparation of action-oriented briefing, background notes, speeches, presentations and reports for the Executive Secretary and senior staff;
4. Assist in liaising with assigned States Signatories, and non-signatories, as well as relevant regional and international intergovernmental organizations with the aim of promoting the goals of the Treaty and its entry into force universalization; prepare draft reports on meetings and ensure that follow-up action is taken; draft and format official correspondence with Permanent Missions and national authorities as necessary;
5. Assist in coordination and management of major external facing events, including the biennial Science Diplomacy Symposium, Science and Technology Conference and other outreach activities, as well as CTBTO participation in other international forums;
6. Contribute to the planning and organization of further outreach activities of the Section with the aim of promoting the goals of the Treaty and its universalization;
7. When required, provide assistance in relation to protocol activities;
8. Perform other duties as assigned.