Green Secure GmbH

System Administrator – Windows Server, Networks, Virtualization

Green Secure GmbH

full-time

Posted on:

Location Type: Office

Location: BremerhavenGermany

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Salary

💰 €48,000 - €60,000 per year

About the role

  • Analyze and resolve complex IT incidents
  • Manage and administer Windows Server environments
  • Maintain Active Directory and user structures
  • Operate Terminal Server and Remote Desktop Services (RDS) environments
  • Administer Microsoft 365 / Entra ID / Exchange Online
  • Support networks, firewalls, and VPN connections
  • Implement backup and security concepts
  • Analyze existing IT infrastructures at customer sites
  • Execute technical aspects of IT projects and system migrations
  • Document systems and actions taken

Requirements

  • Experience in Windows Server administration
  • Experience with Active Directory
  • Experience with Microsoft 365 / Entra ID
  • Experience with Terminal Server / Remote Desktop Services
  • Knowledge of networking (routing, VLANs, VPN)
  • Experience in virtualization (e.g., Hyper-V or VMware)
  • Knowledge of backup systems
  • Understanding of IT security fundamentals
  • Strong troubleshooting and problem‑analysis skills
  • Vocational training as an IT Specialist for System Integration (Fachinformatiker Systemintegration) or equivalent experience
  • Several years of experience in system administration or in an IT systems house
  • Good knowledge of Windows Server environments
  • Experience with Microsoft 365 and modern cloud services
  • Understanding of networks and IT infrastructure
  • Structured and independent working style
  • Clear and professional communication with customers
  • Driver's license class B
Benefits
  • Work in a small, experienced team
  • Short decision-making paths without corporate hierarchies
  • Varied customer environments
  • Significant technical responsibility and room for design
  • Hands-on projects rather than pure ticket handling
  • Long-term prospects in a stable IT systems house
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
Windows Server administrationActive DirectoryMicrosoft 365Entra IDTerminal ServerRemote Desktop Servicesnetworkingvirtualizationbackup systemsIT security fundamentals
Soft Skills
troubleshootingproblem analysisstructured working styleindependent working styleclear communicationprofessional communication
Certifications
IT Specialist for System Integration