System Administrator (Intermediate)

Agile Defense
Huntsville
Workplace: OnsiteFull timeFunction: IT Operations (Systems/Network Admin)Experience: 5+ yearsEducation: bachelorsSkills: ["Problem-solving","Technical troubleshooting","Collaboration","Independent execution","Documentation"]

Provide systems administration and cybersecurity support for a multi-platform DoD environment. You’ll install and maintain Windows Server and Linux systems, manage Active Directory, DNS, DHCP, and virtualization with VMware vSphere/vCenter, and ensure backup and recovery. Lead vulnerability remediation using ACAS/Nessus and harden systems to DISA STIGs aligned with RMF/NIST 800-53, while supporting automation and tier II/III troubleshooting using ServiceNow.

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FursaFursa
Agile Defense
Agile Defense
3 days ago

System Administrator (Intermediate)

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Source: Company careers pageValidated by: Fursa AI
Last checked: 11 hours agoStatus: Live

Job Summary

Provide systems administration and cybersecurity support for a multi-platform DoD environment. You’ll install and maintain Windows Server and Linux systems, manage Active Directory, DNS, DHCP, and virtualization with VMware vSphere/vCenter, and ensure backup and recovery. Lead vulnerability remediation using ACAS/Nessus and harden systems to DISA STIGs aligned with RMF/NIST 800-53, while supporting automation and tier II/III troubleshooting using ServiceNow.
Location: Huntsville
Workplace: Onsite
Employment Type: Full time
Job Function: IT Operations (Systems/Network Admin)
Seniority: Mid level

Key Responsibilities

  • •Install, configure, and maintain physical and virtual servers and enterprise workstations.
  • •Administer core network services including Active Directory, GPOs, DNS, and DHCP.
  • •Maintain and optimize VMware ESXi environments, vCenter Server, and virtual infrastructure; implement backup, disaster recovery, and replication.
  • •Apply DISA STIGs and support RMF/NIST 800-53 compliance through vulnerability remediation and system hardening; maintain security documentation and logs.
  • •Develop administrative automation scripts (PowerShell/Bash/Ansible), troubleshoot network components, and provide tier II/III support using ServiceNow while maintaining system documentation.
Travel: Low travel

Key Requirements

  • •Minimum 5 years of relevant systems administration experience.
  • •Secret clearance; must have clearance to start.
  • •IAT Level II Baseline certification.
  • •Administer Windows Server (2019/2022) with Active Directory and Group Policy (GPO).
  • •Hands-on Linux administration (RHEL or Ubuntu) and patching/vulnerability remediation using ACAS and Nessus.
Experience:5+ yearsDepartment of DefenseGovernment contract
Education:Bachelor's in Computer Science, Information Technology, Cybersecurity, or related STEM field
Skills:Problem-solvingTechnical troubleshootingCollaborationIndependent executionDocumentation
Certifications:IAT Level II Baseline
Tech Stack:VMware ESXiVSphereVCenter ServerWindows Server 2019Windows Server 2022Red Hat Enterprise LinuxUbuntuActive DirectoryGroup Policy Objects (GPOs)DNSDHCPVMwareACASNessusDISA STIGsRMFNIST SP 800-53Risk Management Framework (RMF)SCAP Compliance CheckerWSUS

Eligibility

Security Clearance:Secret

Company Brief

Agile Defense
Provides cybersecurity services including managed detection and response, incident response, vulnerability assessments, and security operations to help organizations detect, respond to, and remediate cyber threats while meeting regulatory and compliance requirements.
Industry: Cybersecurity
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