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Information Systems Officer (P-3)


  • Organization: CTBTO - Comprehensive Nuclear Test Ban Treaty
  • Location: Vienna
  • Grade: Mid level - P-3, International Professional - Internationally recruited position
  • Occupational Groups:
    • Information Technology and Computer Science
  • Closing Date: Closed

VA ID:  2007
Grade Level:  P-3
Division:  International Monitoring System Division
Section:  Network and Systems Support Section
Unit:  UNIX/LINUX Support Unit
Type of Appointment:  Fixed Term Appointment
Date of Issuance:  10 May 2024
Deadline for Applications:
24 June 2024 
Vacancy Reference:  VA312-2007-2024
Reporting Date:  As soon as possible

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

Qualified female applicants and persons with disabilities are encouraged to apply.

 A roster of suitable candidates may be established for similar positions at the same level as a result of this selection process for a period of two (2) years.

*Applicants encountering problems with the recruitment platform due to their location should contact and provide details of the error message received.  

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 International Monitoring Systems (IMS) Division that applies engineering and science to develop, instantiate, and to operate measurement stations around the world as well as to receive, process and disseminate the data collected by these stations as well as related analysis products. 

Reporting Lines

The incumbent will report to the Head, Unix/Linux Support Unit, Network and Systems Support Section (NSS). 

Duties and Responsibilities

The incumbent will carry out the following tasks:

  • Support organizational change initiatives by analyzing and evaluating existing information solutions, identifying opportunities for improvements, and proposing new or improved processes through research of new technologies, as appropriate;
  • Perform cost-benefit analysis of different hardware/software architectures and identify technologies for deployment in the organization; 
  • Design, deploy and maintain application solutions, respond to specific business needs, manage products and maintain roadmaps;
  • Support the implementation of new, information systems, and/or enhancements to the existing systems, by providing analysis of systems and information processes including recommending technical solutions;
  • Lead Agile software implementation projects, manage end-to-end Agile Software Development Lifecycle (SLDC);
  • Develop training materials, technical and user documentation; train staff in information and data systems;
  • Deploy and maintain cloud-based solutions;
  • Perform other duties as assigned. 


  • University degree in computer science, information systems, information technology, or related field.

Work Experience and Qualifications

  • At least five (5) years of relevant working experience in web-based software development, deployment and maintenance; 
  • Proven experience in project management is required; PMP or PRINCE2 certification is desirable;
  • Strong experience with Agile software development methodologies is required; Scrum certification is desirable;
  • Thorough understanding of software engineering processes and the software engineering life cycle is required;
  • Knowledge of web-based internet application development architectures is required;
  • Excellent understanding and experience with Cloud technologies; DevOps is required;
  • Good knowledge of information technology/information management, particularly in cloud computing, systems analysis, digital technologies is required;
  • Understanding of information security and secure design principles is required;
  • Experience with database programming and experience in designing data access layers and data models for an application is required;
  • Very good understanding of IT service management processes is required; ITIL certification is desirable;
  • Knowledge of APIs, programming languages (Javascript, React, NodeJS) is required;
  • Strong analytical skills, result-oriented approach paired with highly structured working style and good sense of responsibility, flexibility, and team spirit; 
  • Working experience in an international environment would be an asset.


  • Excellent command of written and spoken English is required. Knowledge of other languages (Arabic, Chinese, French, Russian and Spanish) is desirable.


  • Professionalism - Shows pride in work and in achievements; demonstrates professional competence and mastery of subject matter; is conscientious and efficient in meeting commitments, observing deadlines and achieving results; is motivated by professional rather than personal concerns; shows persistence when faced with difficult problems or challenges; remains calm in stressful situations;
  • Communication - Speaks and writes clearly and effectively; listens to others, correctly interprets messages from other and responds appropriately; asks questions to clarify, and exhibits interest in having two-way communication; tailors language, tone, style and format to match the audience; demonstrates openness in sharing information and keeping people informed;
  • Planning and organizing - Develops clear goals that are consistent with agreed strategies; identifies priority activities and assignments; allocates appropriate amount of time and resources for completing work; foresees risks and allows for contingencies when planning; monitors and adjusts plans and actions as necessary;
  • Team work - Works collaboratively with colleagues to achieve organisational goals; solicits input by genuinely valuing others' ideas and expertise; is willing to learn from others; places team agenda before personal agenda; builds consensus for task purpose and direction with team members; supports and acts in accordance with final group decisions, even when such decisions may not entirely reflect own position; shares credit for team accomplishments and accepts joint responsibility for team shortcomings;
  • Accountability - Takes ownership of all responsibilities and honors commitments; delivers outputs for which one has responsibility within prescribed time, cost and quality standards; operates in compliance with organizational regulations and rules; supports subordinates, provides oversight and takes responsibility for delegated assignments; takes personal responsibility for his/her own shortcomings and those of the work unit, where applicable;
  • Creativity - Actively seeks to improve programmes or services; offers new and different options to solve problems or meet client needs; promotes and persuades others to consider new ideas; takes calculated risks on new and unusual ideas; thinks “outside the box”; takes an interest in new ideas and new ways of doing things; is not bound by current thinking or traditional approaches; 
  • Client orientation - Considers all those to whom services are provided to be “clients” and seeks to see things from clients’ point of view; establishes and maintains productive relationships with clients by gaining their trust and respect; identifies clients’ needs and matches them to appropriate solutions; monitors ongoing developments inside and outside the clients’ environment to keep informed and anticipate problems; keeps clients informed of progress and setbacks in projects; meets timeline for delivery of products or services to clients;
  • Commitment to continuous learning - Keeps abreast of new developments in own occupation/profession; actively seeks to develop oneself professionally and personally; contributes to the learning of colleagues and subordinates; shows willingness to learn from others; seeks feedback to learn and improve;
  • Technological Awareness - Keeps abreast of available technology; understands applicability and limitations of technology to the work of the office; actively seeks to apply technology to appropriate tasks, shows willingness to learn new technology.


CTBTO offers an attractive compensation and benefits package in accordance with the policies of the International Civil Service Commission. For more information on UN salaries, allowances and benefits, see link: The salary offered may be subject to deductions to the United Nations Joint Staff Pension Fund and/or Health Insurance Scheme.

Additional Information

  • All applications must be submitted through the CTBTO e-Recruitment system before the deadline stated in the vacancy announcement.
  • 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 at a lower grade in particular if the candidate has less than the qualifications required; 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.
  • The CTBTO reserves the right to undertake correspondence only with shortlisted candidates.
  • Candidates under serious consideration for selection will be subject to a reference-checking process.
This vacancy is now closed.
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