The Department of Operational Support (DOS) was established to provide end-to-end operational support, advisory services and other solutions to entities across the Secretariat, including departments, offices away from headquarters, peace operations, regional commissions and tribunals. The Human Resources Services Division (HRSD) provides dedicated services in support of human resources requirements of client entities, from process development through service delivery. The Division establishes and manages rosters across all job families, organizes testing and examinations, provides operational support and other advisory service for clients for the full spectrum of their delegated authorities, and supports managers and business partners in the use of non-staff personnel. The Operational Support and Advisory Service (OSAS) serves as an enabling partner and as the client-facing arm for human resources management at UNHQ, supporting clients in fulfilling their mandates, including related to provided ERP system support on the HR business side. The key services include: guidance to entities on the proper exercise of delegated authorities; advice on the application of human resources policies and procedures; advice to managers related to formal and informal conflict resolution; input/feedback to the development and/or improvement of simplified policies and procedures; support to clients in developing, formulating and implementing customized entity specific HR strategies and plans; and support to clients and shared services in the achievement of their human resources management targets and objectives. The incumbent will report to the Chief of Service or to another designated official within OSAS.