Skip to Job Description
Cyber Security Engineer
European Space Agency (ESA)
Full-time
Close on 8 Apr 2026
Apply Now
Plan Next Steps
Posted 1 hour ago
Job Description

Cyber Security Engineer

Job Requisition ID: 20364
Date Posted: 19 March 2026
Closing Date: 9 April 2026 23:59 CET/CEST
Publication: Internal & External
Type of Appointment: 4 years, extendable to indefinite
Directorate: Technology, Engineering and Quality
Workplace:

Noordwijk, NL

Grade Band: A2 - A4

Location
ESTEC, Noordwijk, Netherlands

Description

Cyber Security Engineer in the System Security Section (TEC-SES), End-to-End Systems Division, Systems Department, Directorate of Technology, Engineering and Quality.

The System Security Section is responsible for the end-to-end system security engineering of the Agency’s missions, projects and activities in the space, ground and user segments and communication links, as well as at system, subsystem, element and equipment level. It covers the missions from the study phase to the definition of requirements, design, development, security integration/verification and security service preparation, across the full stack, from the physical to the application layer.

To serve these functions, the System Security Section defines and executes the associated technology research and development (R&D) and studies, as well as the required security engineering standards.

Using security laboratory facilities, the System Security Section performs vulnerability assessments at all levels of its responsibility, proposing detection methods and mitigation and protection measures using security assessment tools and equipment.

In this position, you will support ESA directorates and space projects and systems, reporting functionally to the corresponding space project/system management structure.

Duties

Your tasks and responsibilities will include:

  • participating in programme reviews of projects, assessing the security design, implementation, qualification and validation, to ensure development is in line with relevant
  • programme cyber security requirements;
  • reviewing the design, proposed implementation and technologies, identifying potential vulnerabilities, analysing their exploitability and their impact, and proposing the appropriate mitigations and required countermeasures;
  • conducting authorised hands-on penetration tests, leading a pen testing team, to identify security flaws;
  • recommending remedial actions to strengthen defences;
  • providing recommendations on security best practices;
  • following the implementation of the mitigation actions, either internally or with industry/partners;
  • reviewing and assessing the acceptability of cyber requests for waivers from industry;
  • organising vulnerability assessment and penetration testing campaigns, assessing the findings, proposing mitigations, and analysing collected evidence of fixed and mitigated vulnerabilities;
  • fostering new security application areas for multidisciplinary activities, placing emphasis on innovative concepts, cutting-edge technologies and system architectures in the field of cyber security;
  • proposing and supervising/following, as a technical officer, research and development activities in the area of security for space systems and missions;
  • supporting laboratory activities as required;
  • continuously following technological trends and evolutions in the scientific fields relevant for this position, and in particular the latest emerging threats, exploits and industry trends deployed to keep ahead of attackers.

Technical competencies

Familiarity with tools like Metasploit, Nmap, Nessus, Burp Suite and Wireshark, as well as with fuzzing tools
General background and specific experience in the technical domains covered by the position
Deep understanding of Linux, Windows, real-time OS, Active Directory/LDAP and other IT enterprise software
Proficiency in scripting languages such as Python
Very good knowledge of security frameworks like OWASP
Understanding of related technologies, R&D trends and the industrial landscape

Behavioural competencies

Result Orientation
Operational Efficiency
Fostering Cooperation
Relationship Management
Continuous Improvement
Forward Thinking

For more information, please refer to ESA Core Behavioural Competencies guidebook

Education

A master’s degree in computer science and/or cyber security is required for this post.

Additional requirements

Diversity, Equity and Inclusiveness
ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. We therefore welcome applications from all qualified candidates irrespective of gender, sexual orientation, ethnicity, religious beliefs, age, disability or other characteristics.

At the Agency we value diversity, and we welcome people with disabilities. Whenever possible, we seek to accommodate individuals with disabilities by providing the necessary support at the workplace. The Human Resources Department can also provide assistance during the recruitment process. If you would like to discuss this further, please contact us via email at contact.human.resources@esa.int.

Important Information and Disclaimer
In principle, recruitment will be within the advertised grade band (A2-A4). However, if the selected candidate has less than four years of relevant professional experience following the completion of the master’s degree, the position may be filled at A1 level.

Applicants must be eligible to access information, technology, and hardware which is subject to European or US export control and sanctions regulations & eligible to acquire the security clearance by their national security administrations.

During the recruitment process, the Agency may request applicants to undergo selection tests. Additionally, successful candidates will need to undergo basic screening before appointment, which will be conducted by an external background screening service, in compliance with the European Space Agency's security procedures.

Note that ESA is in the process of transitioning to a Matrix setup, which could lead to organisational changes affecting this position.

The information published on ESA’s careers website regarding working conditions is correct at the time of publication. It is not intended to be exhaustive and may not address all questions you would have.

Nationality and Languages
Please note that applications are only considered from nationals of one of the following States: Austria, Belgium, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Slovenia, Spain, Sweden, Switzerland, the United Kingdom and Canada, Latvia, Lithuania and Slovakia.

According to the ESA Convention, staff shall be recruited on the basis of their qualifications, taking into account an adequate distribution of posts among nationals of the Member States.

The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset.

{{waiting}}
This position is no longer open.