Internship - Budget and Finance Section

VA ID: 1550 Grade Level: INT Division: Division of Administration Section: Budget and Finance Section Type of Appointment: Internship Date of Issuance: 10 June 2026 Deadline for Applications: 12 July 2026

Please note that all candidates should adhere to CTBTO Values of Integrity, Professionalism and Respect for Diversity.

The CTBTO awards a limited number of internships to university students and recent graduates from diverse academic background. Its purpose is to provide a learning and development experience in a field related to the Commission’s activities specialized in various professional fields. Interns usually work on specific practical assignments. Opportunities for internships are available subject to the current needs of the individual divisions within the CTBTO.

This is a re-opening of the previous vacancy announcement. Candidates who have already applied, do not need to re-apply.

Organizational Background

The Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization with its headquarters in Vienna, Austria is the international organization setting up the global verification system foreseen under the Comprehensive Nuclear-Test-Ban Treaty (CTBT), which is the treaty banning any nuclear-weapon-test explosion or any other nuclear explosion. The Treaty provides for a global verification regime, including a network of 337 stations worldwide, a communications system, an international data centre and on-site inspections to monitor compliance.

Organizational Setting

This position is located in the Budget and Finance Section, Division of Administration (ADM), specifically within one of the following units: Financial Reporting and Payments Unit, or Treasury Unit.

The Budget and Finance Section is a multi-national team working to support the Commission in budget and financial matters in compliance with the Commission’s Financial Rules and Regulations, Administrative Directives, and other regulatory requirements.

Duties and Responsibilties

Under the overall supervision of the Head of Financial Reporting and Payments Unit, or under the overall supervision of the Treasurer, to:

1. Analyze payables in e-invoices system Basware and assist in inquiries and recordkeeping of vendor invoices, travel claims and other payment requests. Respond to queries from vendors and from staff members regarding processing of payables and assist in issue resolution;
2. Assist in reviewing the payment documents to ensure compliance with the Financial Regulations and Rules and administrative directives, and check against purchase orders and other commitment documents to ensure consistency and accuracy;
3. Assist with recording bank payments and assessed contributions, and daily bank reconciliations;;
4. Participate in month end closure activities and provide assistance in month end reconciliations and reporting to the finance colleagues;
5. Provide support in preparation of various financial reports and supporting documentation, including financial statements in line with International Public Sector Accounting Standards (IPSAS) and reporting of assessed or voluntary contributions;
6. Participate in activities related to the e-invoices system or bank connectivity upgrade and enhancements such as user testing;
7. Performs other duties as assigned.

Education and Qualifications

• Candidates for an internship must be at least 18 years of age and no more than 35 years of age;
• At the time of application, the applicant must have completed at least two years of full-time study that will lead to an award of a degree in business administration, finance, accounting or other relevant fields;
• Applications may be accepted up to two years after completion of a bachelor’s, master’s or doctoral degree.

Knowledge, Experience and Skills

• A good knowledge of Microsoft Office is essential;
• Enrollment in, or completion of, a recognized professional accounting qualification programme (e.g. ACCA or CPA) is highly desirable.

Languages

• Excellent written and oral communication skills in English are essential;
• Knowledge of other official CTBTO languages (Arabic, Chinese, French, Russian and Spanish) is desirable.

Competencies

• Professionalism – Conscientious and efficient in meeting commitments, observing deadlines and achieving results;
• Planning and Organizing – Identifies priority activities and assignments; adjusts priorities as required;
• Communication – Demonstrates openness in sharing information and keeping people informed;
• Teamwork – Works collaboratively with colleagues to achieve organizational goals; Solicits input by genuinely valuing others’ ideas and expertise; is willing to learn from others;
• Technological Awareness – Ability to keep abreast of available technology; Willingness to learn new technology;
• Client Orientation – Ability to identify client’s needs and matches appropriate solutions; Ability to establish and maintain productive relationships with clients.

PLEASE NOTE: Internship opportunities occur throughout the year and assignments are filled as required by the CTBTO. Due to the volume of applications received, correspondence will be maintained only with those candidates that are under consideration. Thank you for your understanding.

An intern is neither a staff member nor an official of the Commission. An intern who is a non-Austrian citizen is responsible for obtaining any necessary visas and for complying with local laws concerning police registration.

Additional Information

• All applications must be submitted through the CTBTO e-Recruitment system.
• Incomplete applications and submission of employment history in formats other than the CTBTO Employment Information Form will not be considered.
• The CTBTO Preparatory Commission retains the discretion not to make any appointment to this vacancy; to make an appointment with a modified job description, or to offer a contract term for a shorter duration than indicated in the vacancy announcement.
• Please note that the CTBTO will only consider academic credentials or degrees obtained from an educational institution recognized in the IAU/UNESCO list.
• Candidates under serious consideration for selection will be subject to a reference-checking process or be requested to provide performance assessments.