Develops new tactical approaches to contracts, as well as new methods for their application, based on market research. •Contributes to development of category management strategy for the UN, institutional procurement policies and procedures; develops standards and criteria for the evaluation of goods, services, supplier capacity, etc. •Maintains under constant examination production patterns in exporting countries; evaluates the productive capacities and performance of manufacturers to identify supply sources. •Establishes approaches for negotiations and conducts or coordinates all phases of negotiations with all concerned parties, including the negotiation of disputes arising from contracts. •May carry out consultancy missions to the field. •Provides direction and guidance to more junior staff. Competencies •Professionalism: Knowledge of internationally recognized procurement standards and of all phases of international procurement techniques and operations used in contracting for highly complex and technologically advanced goods and services. Knowledge of contract law and expertise in handling complex procurement and contract issues. Knowledge of quantitative