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# Senior Systems Administration Support (Windows OS) / Active Secret

- **Company:** Peraton
- **Location:** Wiesbaden, Germany
- **Experience:** Expert
- **Salary:** €112,000.0 - €179,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Active Directory Federation Services, Domain Controllers, Application Packaging, Microsoft Azure, Cluster Analysis, Cyber Security, Disaster Recovery, Failover Clustering, Monitoring of Systems, Hyper-V, Identity and Access Management, System Center Operations Management, Microsoft Servers, Microsoft SQL Server, System Center Configuration Manager, Windows Servers, NIPRNet, Performance Tuning, Public Key Infrastructure, Windows PowerShell, Azure Active Directory, Software Asset Management, Software Deployment, Wide Area Networks, Enterprise Software Applications, Patch Management, Data Management, DFS Replication, Scap Compliance Checker
- **Published:** June 10, 2026
- **Apply:** https://de.indeed.com/viewjob?jk=ca427d5d82ee7fbe

## About the Role

Do you have experience in Windows?, Do you have a Bachelor's degree?, * Bachelor's degree in a STEM field or Business Administration and 8 years of relevant experience; Associate's degree + 10 years specialized experience; OR 12 years of relevant, specialized experience in lieu of the bachelors degree.

 * Must meet TESA Qualification.
 * DoD 8140 - IT (System Administrator) - Advanced
 + Certifications - must hold one active certification (one of the following):
 + Microsoft 365 Certified: Administrator Expert; OR
 + Microsoft 365 Certified: Security Operations Analyst Associate; OR
 + Azure Solutions Architect Expert; OR
 + Microsoft Certified: Windows Server Hybrid Administrator
 * Minimum of 4 years of Microsoft Server OS experience
 * Minimum of 2 years of experience with Microsoft Server products (MSSQL, Hyper-V, Live Communications)
 * Minimum of 2 years with U.S. military C2 or commercial LAN/WAN systems
 * U.S. citizenship required
 * Active Secret security clearance

Preferred:

 * Advanced PowerShell scripting skills for automation of administrative tasks, compliance reporting, and system health monitoring
 * Experience with Microsoft Endpoint Configuration Manager (MECM) OSD task sequences, software packaging, and compliance baselines
 * Proficiency with System Center Operations Manager (SCOM) for enterprise monitoring, alerting, and performance dashboards
 * Experience with Azure Active Directory (Azure AD), ADFS, and hybrid identity management in DoD cloud environments
 * Knowledge of PKI administration, certificate lifecycle management, and DoD CAC/PIV integration
 * Experience with Microsoft SQL Server administration including database maintenance, backup/restore, and performance tuning
 * Familiarity with DISA STIG Viewer, SCAP Compliance Checker (SCC), and automated remediation workflows
 * Experience with Windows Server fail-over clustering, DFS replication, and enterprise storage integration

## Description

Peraton is seeking an experienced Senior Systems Administration Support (Windows OS) with the Regional Cyber Center-Europe program., * Administer and maintain Windows Server infrastructure across multiple RCC-E enclaves (NIPR/SIPR), including server builds, role configuration, performance tuning, and lifecycle management in accordance with Army IT standards

 * Manage Active Directory and Group Policy infrastructure, including domain controller administration, GPO design and enforcement, OU structure management, and integration with enterprise identity and access management systems
 * Administer Microsoft Endpoint Configuration Manager (MECM) for software deployment, OS imaging, patch management, and hardware/software inventory across the enterprise Windows environment
 * Implement and track IAVA patch compliance and STIG remediation across all managed Windows systems, coordinating with the ISSM/ISSO to maintain ATO status and support continuous monitoring requirements
 * Manage Hyper-V virtualization infrastructure including VM provisioning, live migration, failover clustering, and capacity planning to support enterprise application hosting and disaster recovery objectives
 * Develop and maintain RMF documentation and system security artifacts, including SSPs, hardware/software baselines, and POA&Ms, ensuring all Windows systems maintain current authorization status
#RCC-E


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