System Administrator

The Hague, NL Deadline: 07-10-2026 Geplaatst: 23-09-2026 #17605

Duties & Responsibilities

  • Maintain and operate the IT environments supporting the CRS Branch.
  • Provide technical service support to CQO customers, ensuring timely resolution of incidents and service-related issues.
  • Act as a Subject Matter Expert (SME) for Microsoft operating systems and associated tools and technologies.
  • Administer and troubleshoot Microsoft Windows and Windows Server environments, including related infrastructure components.
  • Develop, maintain and troubleshoot PowerShell scripts and automation solutions.
  • Perform root cause analysis (RCA) of system and service malfunctions and implement appropriate corrective actions.
  • Develop, implement and improve IT services and technical solutions within the CRS environment.
  • Maintain and support Active Directory, ADFS, WSUS and MECM environments.
  • Implement and maintain automated configuration management solutions using technologies such as Ansible, Puppet and/or Chef.
  • Support and maintain CI/CD processes and associated automation.
  • Work with virtualisation technologies, including VMware and/or OpenStack.
  • Collaborate with colleagues and technical stakeholders to ensure stable, secure and effective service delivery.

Required Expertise & Qualifications

  • Technical engineering degree, such as Electronics Engineering or Information Systems, with a minimum of 3 years of relevant post-graduate experience as a System Administrator; or
  • Secondary educational qualification with a minimum of 5 years of relevant professional experience as a System Administrator.
  • Practical, hands-on experience with:
    • Microsoft Windows and Windows Server
    • WSUS
    • Microsoft Endpoint Configuration Manager (MECM)
    • Active Directory
    • ADFS
    • PowerShell
  • Proven experience developing and maintaining PowerShell scripts.
  • Experience with automated configuration management tools such as Ansible, Puppet and/or Chef.
  • Strong troubleshooting skills across Microsoft Windows server and end-user environments.
  • Knowledge and practical experience with VMware and/or OpenStack.
  • Experience maintaining and supporting CI/CD processes.
  • Strong analytical and problem-solving skills, including root cause analysis.
  • Ability to work effectively as part of a multidisciplinary team.
  • Fluent English, both written and spoken.
  • NATO COSMIC TOP SECRET clearance is mandatory.

Desirable Experience

  • Experience with UNIX-based operating systems, particularly RHEL and/or Oracle.
  • Experience with container technologies.
  • Experience with public cloud platforms such as Microsoft Azure and/or AWS.
  • Experience providing service support for IaaS and PaaS environments.

Location: The Hague, Netherlands
Working arrangement: Primarily on-site, with flexibility to work from home when required
Start: 2 November 2026
End: 30 December 2026
Equivalent NATO Grade: G12
Clearance: NATO COSMIC TOP SECRET

   

 

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