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System Engineer

GCUBED ENTERPRISES INC
Fort Belvoir, VA Full Time
POSTED ON 4/18/2026
AVAILABLE BEFORE 6/17/2026

Systems Engineer / Systems Administrator

We are seeking a highly skilled Systems Engineer / Systems Administrator to support and maintain a complex, mission critical IT environment. The ideal candidate will have broad hands on experience across virtualization, operating systems, networking, security, and system hardening. This role requires an active security clearance and a Security (or higher) certification.

 

Key Responsibilities

  • Manage the VMware environment, including provisioning, performance tuning, and lifecycle maintenance
  • Administer SAN storage systems and ensure high availability and data integrity
  • Manage Windows servers, including configuration, patching, and troubleshooting
  • Manage Linux systems across multiple distributions
  • Oversee system backups and ensure successful restoration and retention compliance
  • Perform vulnerability scanning and assist with remediation efforts
  • Apply STIGs to all systems and maintain compliance with security baselines
  • Perform OS and software updates across all platforms
  • Create and maintain system documentation, including diagrams, SOPs, and configuration records
  • Support preparation for a new ATO at a higher classification level
  • Manage VTC systems and ensure operational readiness
  • Administer network switches and assist with basic network configuration
  • Perform basic troubleshooting across systems, networks, and applications
  • Manage system permissions through Active Directory and group structures
  • Collect and review system logs for performance, security, and operational insights
  • Apply network engineering skills to support infrastructure improvements
  • Leverage AI experience when applicable (preferred but not required)
Qualifications:

Required Qualifications

  • Active U.S. Government Security Clearance
  • Security (or higher DoD 8570 compliant certification)
  • 5 years of experience in systems administration or engineering
  • Strong understanding of virtualization, storage, networking, and OS management
  • Experience working in secure or regulated environments

Preferred Qualifications

  • Experience supporting ATO packages or RMF processes
  • Familiarity with automation tools and scripting
  • Exposure to AI/ML technologies

Salary.com Estimation for System Engineer in Fort Belvoir, VA
$97,384 to $116,046
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