UN Director grades and senior appointment levels

D-1 and D-2 are the two grades in the Director category of the UN common system. Assistant Secretary-General (ASG) and Under-Secretary-General (USG) are higher-ranking titles, but they should not be presented as ordinary grades at the top of a single promotion ladder.

That distinction matters to applicants. A person does not move automatically from P-5 to D-1, from D-2 to ASG, or from ASG to USG after serving a set number of years. Every vacancy or appointment has its own mandate, requirements and selection process.

D-1 and D-2: the Director category

D-1 and D-2 posts are internationally recruited staff positions. Their work normally involves leadership of major organizational units, programmes or functions. The International Civil Service Commission classifies posts according to the duties and responsibilities attached to them, not according to the incumbent’s age, reputation or previous title.

A D-1 officer may direct a service, branch, large section, country operation or substantial technical programme. A D-2 officer often leads a division, major office or function with broader institutional reach. These examples are useful orientation, not rules. Organizational design differs across the Secretariat, funds, programmes and specialized agencies.

Titles are therefore unreliable shortcuts. The title Director can be used in both grades, while a head of office title can carry different levels depending on mandate, scale, impact and reporting relationships. The vacancy’s Category and Level field is the authoritative label for a particular job.

Director posts typically require strategic direction, accountability for results and resources, senior representation and leadership across professional disciplines. They can also demand deep subject knowledge. Management responsibility does not make technical judgment optional.

Experience and entry requirements

The UN Secretariat’s general job-level guidance uses fifteen years of relevant experience for D-1 and more than fifteen years for D-2. Individual openings provide the binding requirements and may specify experience in senior management, field operations, intergovernmental work, organizational change or a particular technical area.

An advanced university degree is normally required for Secretariat Director vacancies. An opening may accept a first-level university degree with additional qualifying experience. Specialized credentials and language requirements depend on the post.

At this level, progressively responsible experience should show more than long service. Strong evidence includes decisions with organization-wide consequences, responsibility for sizeable teams or resources, advice to governing or legislative bodies, leadership across countries, or technical authority in high-risk matters.

Applicants should not infer eligibility from their present grade alone. A P-5 candidate may compete for D-1 if the vacancy permits and the record meets its requirements. Serving at D-1 does not create an entitlement to D-2.

ASG and USG are senior appointments

ASG and USG titles are used for the UN’s most senior leadership functions. They may head departments, offices, major entities or system-wide portfolios and may represent the Secretary-General at the highest political and institutional levels.

These positions belong to a senior appointment framework rather than the ordinary sequence of competitively filled Professional and Director grades. Appointment authority, procedure and terms depend on the office and its governing legal basis. Many appointments are made by the Secretary-General; some require consultation, confirmation or action by another UN organ.

The UN Charter illustrates why one formula cannot cover every post. Under Article 101, staff are appointed by the Secretary-General under regulations established by the General Assembly. Other Charter provisions give the General Assembly, Security Council or other bodies a role in certain named offices. Specialized agencies and separately administered organizations operate under their own constitutions and rules.

Senior appointment notices may invite nominations or applications and may be supported by search processes. They are not promises of promotion to existing D-2 staff. Governments and organizations may nominate candidates in some searches, but the published procedure for the specific office controls.

Rank, contract and compensation

Rank and appointment duration are separate questions. A D-1 or D-2 job may be offered under a fixed-term or temporary appointment, subject to the vacancy and staff rules. Senior officials may serve under arrangements tied to a mandate or stated term. None of these levels guarantees renewal.

D-1 and D-2 remuneration follows the Professional and higher category salary system, including post adjustment. ICSC publishes separate information for senior officials at ASG and USG level. Actual terms and entitlements must be checked in the appointment documentation.

Reading a vacancy or appointment notice

For a D-1 or D-2 application, map evidence to each stated requirement. Describe the mandate and scale of the unit led, the resources controlled, the decisions personally owned and the effect of those decisions. Separate formal supervisory authority from coordination among peers.

Senior appointment submissions often ask for a vision statement, leadership record, references or declarations in addition to career history. Follow the notice exactly. A polished executive profile cannot compensate for an omitted eligibility requirement.

Show judgment with a concrete example: a contested policy choice, serious operational failure, political constraint or ethical risk. Explain the alternatives considered, your decision and its result. For technical leadership, identify the standard or analysis that made the advice authoritative.

Read the office’s legal mandate, selection notice and stated accountabilities together. The application should answer those requirements, not an assumed next step in a grade sequence.

Official references: UN Careers job levels; Secretary-General senior appointments; ICSC salary scales; Charter of the United Nations; ICSC job classification.