Are you an experienced IT Security Engineer looking for a unique opportunity to work on one of Europe’s most ambitious space programs? Do you want to be part of the team that ensures the seamless operation of the Galileo, the European Global Navigation Satellite System?We are looking for skilled IT Security Engineers to join our team and play a key role in securing and monitoring IT infrastructure supporting the Galileo program. You will work in a high-availability environment, ensuring the reliability and efficiency of the ground segment systems that keep Europe’s global navigation satellite system (GNSS) running smoothly.ABOUT USESYEN is an engineering company offering services to the Space Industry, working with major international Customers and Agencies like EUSPA and ESA. Since 2012, we play an active role in all the main European Space Programs, including Earth Observation, Navigation and Secure Satcom.Our team has a solid track record in providing Ground Segment services across the major EU Space Programmes. ESYEN operates in Italy, Germany, France and Spain, with a strong commitment to innovation and quality of service. Possible Work LocationsThe position is available at one of the following Galileo program sites:Galileo Control Centre Italy – Fucino (near Avezzano)Galileo Control Centre Deutschland – Oberpfaffenhofen (near Munich)Galileo Security Monitoring Centre France – Saint-Germain-en-Laye (near Paris)Galileo Security Monitoring Centre Spain – San Martín de la Vega (near Madrid) Please specify your preferred work location in your application.WHAT WE LOOK FOR✅ EducationDegree in Computer Science, Engineering or a related field✅ Technical SkillsStrong expertise in Windows & Linux system administration, configuration and hardeningExperience in risk analysis and vulnerability assessmentWell-versed in IT troubleshootingExperienced in understanding networks protocols, encryption, ITsecurity conceptsFamiliarity with penetration testing is an added advantage✅ Additional requirements1+ years of experience as a IT Security Engineer in a complex IT environment (space, aerospace, telecommunications, or similar)Problem-solving mindset and a proactive approachAbility to work in a team-oriented, fast-paced environmentStrong communication skills and a willingness to collaborate across departmentsFluency in English (written and spoken)Eligibility for security clearanceWillingness to travel within Europe when requiredWHAT YOU WILL DOAs a IT Security Engineer, you will be part of the Galileo Ground Segment, a critical component of the Galileo satellite navigation system. Your role will involve ensuring secure infrastructure through risk assessments, monitoring, and expert support while collaborating with multiple stakeholders to ensure high availability and reliability of Galileo services.Analyse and assess networks, subsystems, components, controls, and security standards to identify vulnerabilities and weaknesses.Deliver expert guidance in the design, implementation, testing, and troubleshooting of security infrastructure components.Conduct security monitoring, vulnerability assessments, and forensic log analysis to proactively detect and mitigate threats.Plan and execute periodic security audits and risk assessments to ensure compliance and confirm alignment with client security requirements.Act as a subject matter expert, advising stakeholders to ensure security best practices are integrated throughout all phases of the project.Prepare and deliver detailed security reports, highlighting risks, incidents, compliance status, and recommendations.Perform security impact assessments on change control requests and authorize or deny implementation based on compliance and risk criteria.