Career guide · Impact Career

UN interview questions: a practical preparation guide

For a competency-based UN interview, prepare concrete examples from your experience, not memorised speeches. Start with the vacancy notice and interview invitation: the assessment format and expectations can differ between organisations and roles.

Professionals preparing an international career application together

The short answer

Identify the competencies in the vacancy, choose real examples, explain your own actions and results, and practise follow-up questions. The questions below are practice prompts, not an official UN question bank.

1. Turn the vacancy into a preparation plan

Read the responsibilities, competencies and selection criteria. Match each requirement to evidence from your work, studies or volunteering. The UN Careers interview guidance describes competency-based interviews as a way to assess past behaviour relevant to the role.

  • Build an evidence sheet: requirement → example → your actions → result → lesson.
  • Include examples of collaboration, deadlines, disagreement and a setback; choose them according to the vacancy, not a universal list.
  • Read about the organisation’s mandate and the team’s work. Prepare a specific reason for wanting this position.
  • Follow the invitation’s instructions for language, format, timing and any assessment. Ask the recruitment contact if something is unclear.

2. UN interview questions to practise

These original prompts are inspired by competency-based preparation. A panel may ask different questions or probe the same example from several angles.

  • Teamwork: Tell us about a time you worked with people who had different priorities. How did you reach a shared outcome?
  • Planning: Describe a time several urgent tasks competed for your attention. How did you prioritise?
  • Communication: Give an example of explaining a complex issue to a non-specialist audience.
  • Judgement: Describe a decision you made with incomplete information. What risks did you consider?
  • Integrity: Tell us about a time you raised a concern or challenged an inappropriate approach.
  • Learning: Describe a mistake or unsuccessful project. What did you change afterwards?
  • Motivation: Why this organisation and this role? Which parts of your experience are most relevant?

3. Build an answer with STAR

STAR means Situation, Task, Action and Result. Keep the context brief, explain your responsibility, spend most of the answer on what you actually did, then state the outcome and what you learned. Distinguish your contribution from the team’s achievements.

Fictional practice answer — a competing-deadlines question

Situation: Two partner reports were due in the same week, and one dataset was incomplete. Task: I was responsible for consolidating the submissions. Action: I identified the missing fields, agreed a priority list with my supervisor, gave each partner a clear checklist and flagged the data gaps rather than estimating figures. Result: We submitted both reports on time with the limitations documented. I then introduced an earlier data-quality check for the next cycle.

  • Use only your real experience; never adopt the fictional example as your own.
  • Quantify outcomes only when you can support the numbers. Qualitative outcomes are also useful.
  • Do not share confidential beneficiary, colleague or employer information.
  • Prepare for probes: What did you personally do? Why that approach? What would you do differently?

4. Rehearse without sounding scripted

Practise aloud with someone who can ask follow-up questions. Check whether they can identify your responsibility, actions and result without extra explanation. Use short notes rather than a script.

  • If a question is unclear, ask for clarification before choosing your example.
  • If you lack an exact example, say so and offer the closest relevant experience; do not invent one.
  • For an online interview, test audio, camera and connection, and keep the invitation and a backup contact accessible.
  • Prepare thoughtful questions about the role’s priorities and working relationships.

5. Final preparation checklist

  • I can link my examples to the criteria in this vacancy.
  • My answers make my own contribution and outcomes clear.
  • I can discuss a setback honestly and explain what I learned.
  • I have checked the interview instructions and practical arrangements.
  • I understand that good preparation does not guarantee selection.

Sources and scope

Written by Impact Career. Examples and checklists are original educational resources. The sources below provide further guidance; the employer’s instructions always take priority. Impact Career is not affiliated with these organisations.

Work on your application

Use your CV and target vacancy to prepare your documents and answers with Impact Career. Always check suggestions before using them.

Open Impact Career

Read next

NGO cover letter: a practical guide and adaptable example