below marketmost similar roles pay hereabove market
This role pays less than
56%
of similar roles. Most pay
$105,000–$147,500
— the blue band above.
At the midpoint, this role pays about
$122k
versus about
$126k
for comparable roles.
Based on 240 similar postings.
Employer
About Leidos
Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations.
Leidos currently has
434 open roles
on FindRole.
Listed pay typically runs
$92,300–$166,850
across 352 roles with salary data.
JOB TITLE: System Administrator
The System Administrator joins the Corporate Information Security Office within the Digital sector to support various classified environments. This role involves maintaining, securing, and supporting complex classified information systems while ensuring strict compliance with security protocols and regulations. The successful candidate will administer, troubleshoot, and patch Windows and Linux-based workstations and servers. Key responsibilities include managing Active Directory services, DNS, Group Policy Objects, and network infrastructure including switches, VLANs, and firewalls. The position requires managing enterprise storage via SMB, NFS, and iSCSI. Candidates must utilize tools like DISA SCC, Evaluate-STIG, and Tenable Nessus to perform vulnerability assessments. Technical skills include automation using PowerShell, Bash, or Ansible. The work focuses on protecting information and maintaining security controls for entire systems, sites, or programs to reduce risk.
Administer, maintain, and troubleshoot Windows and Linux-based workstations and servers in a mixed environment.
Manage Active Directory services including user accounts, Group Policy Objects, DNS, and system authentication.
Configure and maintain network infrastructure including switches, VLANs, IP addressing, and firewall rules.
Implement and maintain system security configurations in accordance with DISA STIGs, JSIG, and RMF requirements.
Execute vulnerability assessments and compliance scans using tools like DISA SCC and Tenable Nessus to remediate findings.
Develop and maintain automation scripts using PowerShell, Bash, or Ansible to improve system efficiency.
Monitor system health, performance, storage utilization, and security logs to proactively resolve operational issues.
Support system backup, recovery, and data protection activities to ensure operational continuity and data integrity.
What we're looking for
Must be a U.S. Citizen.
Must hold a current, active DoD Top Secret security clearance with the ability to be cleared for SAP and a polygraph.
Must have a current DoD 8570 IAT level II or higher certification, such as CompTIA Security+.
Bachelor’s degree coupled with 4-8 years of experience, or equivalent industry-standard experience and certifications.
Experience administering, configuring, and troubleshooting Windows and Linux operating systems, including Active Directory, DNS, and Group Policy.
Experience supporting Special Access Program (SAP) environments, including familiarity with JSIG, RMF, and system authorization lifecycle requirements.
Windows Server
Active Directory
VMware vSphere
Linux
Red Hat Enterprise Linux
Ubuntu
Microsoft Hyper-V
Group Policy
DNS
Jira
PowerShell
Bash
AWS
Docker
SharePoint
Cisco Unified Communications Manager
TACLANE
Risk Management Framework
SCAP
STIGs
VMware
vSphere
ESXi
Horizon
vCenter
Nutanix
AOS
Windows Server
Windows 10
Active Directory
Group Policy
VDI
Hypervisor
Disaster Recovery
Security+
Network+
Systems Administration
Linux
Windows
Bash
PowerShell
Docker
Kubernetes
Proxmox
Active Directory
DHCP
DNS
Certificate Authority
PXE
RHEL IdM
FreeIPA
Agile
Scrum
Kanban
Software-in-the-Loop
STIG
FIPS