This position is located in the Procurement Division within the Office of Supply Chain Management (OSCM), Department of Operational Support (DOS). The Department of Operational Support was established to provide operational advisory services to operating entities across the Secretariat, including other departments, offices away from headquarters, field missions, and regional commissions. The Office of Supply Chain Management encompasses the Office of the Assistant Secretary-General, the Logistics Division, the Procurement Division, the Uniformed Capabilities Support Division, Global Service Centre, and the Enabling and Outreach Service. The mandate of the Procurement Division is to provide responsive, effective, and quality expert procurement services and business advice to United Nations (UN) Headquarters, field missions, and other UN organizations, while achieving best value for money, ensuring a competitive, fair and transparent process in accordance with established regulations, rules and procedures. This position is located in the Aviation Transportation & Logistics Section and the Procurement Assistant will report to a Team Leader.