Common UN Interview Questions and How to Answer Them

The format is not casual conversation, and candidates who treat it as one lose marks they never see. The reassuring part, which most preparation guides bury, is that a UN interview is a structured behavioural interview. So is a World Bank interview, and an interview at UNICEF, the EU institutions, the OSCE or Save the Children. The method is the one used by most large rules-based employers, for the same reason: it is the fairest way to compare a hundred candidates against a published standard.

That means the technique transfers across an entire international career. What changes between organizations is not the kind of question but the vocabulary of the framework the questions are drawn from, together with one block of questions the humanitarian and development sector takes considerably more seriously than most employers.

This article is a question bank. It groups the recurring questions by what each actually probes, explains what a panel listens for, and shows how an answer is built to score. The mechanics of the answer itself are covered in the companion guide to the STAR method.

The one principle behind every question

The panel is not asking what a candidate would do. It is asking what they did.

Behavioural interviewing rests on a single assumption: past behaviour is the best predictor of future behaviour.¹ Everything else follows. Hypothetical answers score nothing. Opinions score nothing. Assertions about one’s own character score nothing. A specific past event, containing the candidate’s own actions and ending in a result, scores.

Held as the whole method, that principle is enough to walk into any interview in the sector.

What changes between organizations: the framework

Every behavioural question is drawn from a framework of values and competencies, and every organization publishes its own. The vacancy notice identifies which one applies.

The practical move is identical in every case: find the list in the vacancy notice and prepare one real example for each item on it — that list, not a generic ideal.

Block 1: values, integrity and safeguarding

Most candidates prepare for competency questions and are caught out by values questions. This is where the international sector genuinely differs from the average employer, because these organizations carry public trust, operate where oversight is thin, and work with people who cannot easily complain. A weak answer here does not merely score low; it raises a flag.

The ethical dilemma. “Tell us about a time you faced a professional or ethical dilemma at work.” The panel is looking for recognition of the dilemma as a dilemma, evidence that something real was weighed, and a choice that was not simply the convenient one. A candidate who can recall never having faced one reads as untested or unreflective.

Observing misconduct. “Tell us about a time you saw a colleague behaving unprofessionally or unethically. What did you do?” This is the question most often ducked, and ducking it costs more than the awkwardness of answering. These organizations carry reporting obligations and protection-from-retaliation policies, and the panel is establishing whether the candidate would act or look away. A strong answer names what was wrong, states the specific action taken — a conversation with the person, escalation to a supervisor, use of the formal channel — and is honest about how it landed.

Safeguarding and PSEA. In humanitarian and development organizations, questions touching the protection of the people served should be expected: handling a concern about a colleague’s conduct toward a beneficiary, or responding to a power imbalance being misused. Zero tolerance is stated policy across the sector and, increasingly, an interview topic. It rewards honest preparation rather than performance.

Being asked to bend a rule. “Describe a time you were asked to do something that conflicted with the rules, or with your own standards.” The answer shows the line held, and that it was held constructively. Firm and self-righteous are not the same thing.

Conflict of interest. “Give an example of a conflict of interest you have had, and how you handled it.” The scoring behaviour is almost always disclosure: declaring it early and stepping back. Managing it privately is not what earns the mark.

Respect for diversity and inclusion. “Tell us about a time you worked with people from very different cultural or professional backgrounds.” The panel is not looking for a statement that diversity is valued. It is looking for a moment where difference created genuine friction, and what was done about it. An account in which everyone got along effortlessly evidences nothing.

Block 2: the core competency questions

These are the universal ones, appearing in this form at a UN agency, a development bank and an INGO alike.

Teamwork. “Tell us about a time you worked in a difficult team.” Not a check on being agreeable. The panel wants evidence of ego subordinated to a shared goal, input solicited and credit given, so the account should anchor on a contribution to a group outcome rather than on carrying the team alone.

Managing conflict. “Describe a disagreement with a colleague and how you resolved it.” The subject is emotional regulation under interpersonal strain. The strongest accounts involve a conflict engaged with directly, where the person was separated from the problem, rather than one escalated immediately or waited out.

Working under pressure. “Give an example of a time you delivered under a tight deadline.” Prioritization and composure are being scored, not heroics. What was dropped and what was protected is the evidence.

Planning and organizing. “Tell us about a complex piece of work you had to plan.” Can work be broken down, sequenced and risk-assessed? Milestones, dependencies and the method of tracking progress supply the answer.

Adapting to change. “Describe a time when priorities shifted suddenly.” Common in emergency and field contexts. The pivot and what was salvaged carry the marks.

Client orientation. “Give an example of how you handled a demanding stakeholder or beneficiary.” Client is read broadly: governments, partners, donors, the people served. The evidence sought is an understood underlying need and follow-through, not agreement to everything asked.

Accountability. “Tell us about a commitment you struggled to keep.” Was it flagged early, or left in the hope that nobody would notice?

A difficult decision. “Tell us about a decision you found hard, and how you reached it.” Judgement is the competency: the right information gathered, trade-offs weighed, the call owned. The reasoning matters more than the outcome.

A mistake. “Describe a time you failed or got something wrong.” Evading this reads worse than the mistake itself. A real error, owned without excuses, followed by the concrete change it produced.

Block 3: the managerial questions

Where a post supervises anyone — a P-4 at a UN agency, a team lead at an INGO, a senior specialist with reports at a bank — a second block follows: leadership, managing performance, developing people, building trust and judgement.

These are the questions mid-career candidates most often meet cold, having prepared as a doer rather than as a manager.

• “Tell us about a time you had to manage a poor performer.” The panel wants a documented, fair and humane process: an early conversation, clear expectations, support offered, consequences applied. Neither avoidance nor a dismissal story with no process in it.
• “Describe how you built a team’s confidence during a difficult period.”
• “Give an example of how you developed someone on your team.” Delegation with support, rather than offloading.
• “Tell us about a time you led people through a change they resisted.” Were people brought along, or was the change announced?
• “Describe a decision you made with incomplete information.” What was done to reduce the uncertainty before committing?

Candidates stepping up to a first supervisory post still need answers here, drawn from informal leadership: a workstream led, a junior colleague mentored, a team coordinated without formal authority.

Block 4: knowledge and motivation

Not every question is behavioural.

“What do you see as the biggest challenge facing this organization right now?” This requires a real answer grounded in something actually read — the strategic plan, the funding environment, a recent evaluation. A vague response signals an application to “an international organization” rather than to this one.

“Why do you want to work here?” A mandate-fit question, answered with what the candidate offers the mission rather than what the job offers the candidate.

“Tell us about yourself.” Not a life story. Two minutes, role-relevant, tracing the thread that leads to this post.

“Why should we select you?” Distinctive, evidenced value in one or two sentences, not a recap.

“Do you have any questions for us?” Always something substantive: the team’s current priorities, how success in the role is measured, what the first six months involve. A declined invitation is the last thing the panel hears, and a missed signal.

The question after the question

Panels probe, and the score is often decided here rather than in the prepared part:

• “What exactly did you do, personally?” — prompted by an answer given in the collective.
• “What was the result?” — prompted by an answer that stopped at the action.
• “What would you do differently?”
• “How did the other person react?”
• “Can you give me another example?”

This is why the examples must be real. A borrowed or invented account survives the first telling and collapses on the second question. It is also why the shape of an account should be rehearsed rather than a scripted paragraph: the story has to be navigable when the panel pushes.

What loses marks: the negative indicators

Panels do not only look for the competency. They also record its absence and its opposite. Answers commonly lose points for:

• The collective voice where the individual is needed. The most frequently flagged error in structured interviews, and one that can render a genuinely strong account unscoreable.
• Blaming others, especially in the mistake and conflict questions. Whatever the underlying truth, a blame-shaped answer reads as a failure of accountability.
• Vagueness. “I always make sure to communicate clearly” is an assertion, and assertions cannot be marked.
• The hypothetical. “I would gather the team and…” documents an intention rather than a behaviour.
• No result. An answer that stops after the action leaves half the box unticked.
• Running out of time in the setup — the most common way candidates never reach the part that scores.
• Mining one role for everything. Two examples from the same job are worth avoiding where possible. University, internship, volunteer and side-project examples are entirely legitimate, and range signals breadth.

How a strong answer is shaped

One real, specific account per question, in Situation–Action–Result form: brief context, a clear statement of the individual actions taken, and a concrete result.⁴ First person throughout, ending on something measurable where that is honestly possible, or on a genuine lesson in the case of the mistake question.

A bank of five or six distinct accounts, mapped against the list in the vacancy notice, is the preparation. Each repays being rehearsed aloud: a setup that has run to ninety seconds is rarely audible to the person delivering it until it is played back.

Common mistakes & FAQ

That behavioural questions can be improvised. They cannot. Without a bank of prepared real examples, most candidates freeze or ramble. Preparation is the single largest differentiator and it is entirely within the candidate’s control.

That hypothetical answers are acceptable. This is the classic trap. Every “I would” converts into “I did”. Where a question is genuinely posed as a hypothetical, it can still be anchored: the last occasion on which that situation arose, and what was actually done.

That there are secret right answers. There are not. Panels score the presence of the competency in the candidate’s own example against a rubric, not against a model answer. A modest but real account beats an impressive but vague one every time.

That a missing competency has no answer. The definition is worth widening before conceding. Volunteer work, study projects, internships and informal leadership all count, provided the behaviour is real and belongs to the candidate. Where there is genuinely nothing, saying so briefly and offering the closest analogous experience is the better move, since panels probe and invented examples do not survive.

Whether a UN interview differs from other interviews. Less than is generally assumed. The structure is standard behavioural interviewing, used across the public and non-profit sectors. What is distinctive is the values and safeguarding block, and the fact that the assessed criteria are published in advance — which is an advantage to anyone who uses it.

What to do when a question is unclear. Ask for it to be repeated or clarified. Listening well is itself evidence of the communication competency; confidently answering the wrong question is not.

Key takeaways

• A UN interview is a structured behavioural interview, the same method used at development banks, INGOs and most large public employers. Learned once, it transfers.
• What changes between organizations is the framework vocabulary rather than the kind of question. The list in the specific vacancy notice governs, with one real example prepared per item.
• The values block is not to be skipped. The ethical dilemma, the conflict of interest, safeguarding and the response to observed misconduct are the questions most often fumbled, and the ones where fumbling costs most.
• Where the post supervises anyone, the managerial block needs its own preparation: poor performance, developing people, leading through resistance.
• Answers take the form of a single specific past account in first-person Situation–Action–Result form, ending on a concrete result or a genuine lesson.
• Hypothetical answers score nothing, and vagueness, blame and the collective voice are recorded as negative indicators.
• The probing follow-up should be expected, since the score is often decided there — which is why the account must be real.

Related reading

• The STAR method: how to structure answers in a competency-based interview
• Mastering the competency-based interview for UN jobs
• Preparing for technical interviews and written assessments across the UN system
• The real UN application timeline: from vacancy to offer
• How to land a job in the United Nations system

These interviews are learnable, and what is learned is portable. The questions are predictable, the criteria are published in the vacancy notice, and the difference between a nervous ramble and a confident answer is usually a few hours of honest preparation with real material. The bank is built once and serves at every organization applied to thereafter. Current UN and international vacancies on UNjobnet →

Sources

1. United Nations, “Competency-based interviews”, HR Portal, hr.un.org — the past-behaviour principle underpinning the competency-based interview. ↩
2. United Nations, “United Nations Competencies for the Future”, careers.un.org — the three core values, the core competencies and the managerial competencies. ↩
3. United Nations, “UN Values and Behaviours Framework”, HR Portal — four values and five behaviours. hr.un.org. ↩
4. United Nations, competency-based interview training for applicants, hr.un.org — official example questions and the Situation–Action–Result answer structure. ↩

Last reviewed: August 2026. This guide is general information rather than official HR or recruitment advice — competency frameworks, interview formats and assessed criteria differ across organizations and change over time, so the vacancy notice and any guidance from the recruiting office govern.