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Senior System Admin

Paragon Technology Group, Inc.
105000.00 To 110000.00 (USD) Annually
United States, Virginia, Vienna
1934 Old Gallows Road (Show on map)
Feb 05, 2026

Senior Systems Administrator

The Senior Systems Administrator provides lead-level systems administration, operations, and maintenance support for SDDC installation, brigade, battalion, and detachment-level environments. This role serves as the technical focal point at assigned locations and supports mission-critical classified and unclassified systems across NIPR, SIPR, and CENTRIXS networks. The position requires hands-on technical expertise, on-call support, and the ability to operate independently in geographically dispersed environments.

Key Responsibilities:

  • Serve as the lead systems administrator and primary technical point of contact for assigned SDDC installation/BDE/BN/DET locations
  • Perform day-to-day administration of Windows-based server environments supporting mission systems
  • Install, configure, operate, maintain, and troubleshoot server platforms and supporting infrastructure
  • Administer Active Directory environments
  • Support virtualized and remote-access environments
  • Monitor system health, performance, and availability across supported enclaves
  • Implement and maintain DISA STIG compliance for all systems within the area of responsibility
  • Track, document, and remediate vulnerabilities; develop and maintain POA&Ms
  • Support Authorization to Operate (ATO) and Certification & Accreditation (C&A) activities by producing required technical artifacts
  • Respond to hardware/software incidents within required response timelines
  • Provide on-site and on-call support during outages, contingencies, emergencies, and exercises
  • Participate in continuity of operations efforts, including documentation and recovery support
  • Develop, update, and maintain Standard Operating Procedures (SOPs) and system documentation
  • Coordinate daily with local cyber operations teams and provide remote support to subordinate units and detachments as required

Required Qualifications:

  • Bachelor's degree in Information Technology, Computer Science, or related field (or equivalent experience)
  • Active SECRET clearance
  • 8+ years of systems administration experience in DoD or enterprise IT environments
  • Demonstrated experience supporting NIPR/SIPR networks
  • Experience serving in a lead or senior technical role
  • Security+ CE certification

Desired Qualifications:

  • Windows Server administration certifications preferred
  • Windows Server administration
  • Active Directory and Group Policy
  • Virtualization technologies
  • Backup, recovery, and continuity support
  • STIG implementation and compliance tracking
  • Troubleshooting complex HW/SW issues under operational constraints
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