Applying for a UN job - some thoughts to help you

Guest blog: Lenni Montiel: Senior UN Development Leader (Ret.) | Former UN Assistant Secretary-General |UNDP Resident Representative I Governance, Public Policy & Multilateral Diplomacy | Leadership Advisor & Trainer I Chevening Scholar. Lenni writes in LINKEDIN on UN and international development. Originally published here.

Your UN application may fail before review. Why?

Because many applicants misunderstand what a UN vacancy announcement actually is.

It is not simply a job description.

It is a screening mechanism.

Most candidates do not read it strategically.

Here is how to read a vacancy announcement properly:

👉 Start with the requirements, not the responsibilities.

The requirements section usually determines whether you are screened in or out.

What to examine carefully:  

Education: Does your degree match the field and level specified? “Related field” is often interpreted narrowly.

Years of experience: Usually non-negotiable. If a position requires 7 years, 5 years may not pass the first screening.

Languages: “Fluency” and “working knowledge” are not the same.

Technical expertise: Sector-specific competencies are often decisive. Generic management experience rarely substitutes for them.

Required vs. desirable qualifications: Usually, ‘desirable’ is a must. “Desirable” qualifications are often used to rank candidates who already meet all minimum requirements.

Geographic exposure: Country or regional experience may matter more than applicants realize.

👉 Common mistakes:

Applying to positions where you clearly do not meet several core requirements, hoping they will be overlooked. Usually, they will not.

Applying optimistically rather than strategically. The first screening process is usually far stricter than many candidates expect.

Submitting the same application to multiple positions without tailoring it to each vacancy.

Underestimating the cover letter. While rarely decisive on its own, it still shapes the recruiter’s early perceptions. Today, many candidates prepare applications with AI support. At the same time, organizations increasingly use AI-assisted systems to process hundreds, and sometimes thousands of applications.

This makes recruitment even more competitive.

👉 Simply put:

If you do not meet the core requirements, you will probably not pass the first filter.

Even if you do meet them, you may still be competing against candidates with stronger experience, exposure, language skills, or institutional familiarity.

As I used to tell younger colleagues in highly competitive international recruitment processes, candidates compete not only on quality, but also against people who simply had more time to accumulate experience, exposure, and credentials.

That is the reality of the market. Persistence matters. But strategy matters too.

👉 A vacancy announcement is not just a job description.

👉 It is a screening tool.

Read it strategically.

Use it strategically.

For those who plan to apply to the UN system: Save it, it can help you.

If you found this analysis useful, share it with colleagues, young professionals, and students trying to better understand how the United Nations actually functions.