Linux and Windows Systems Administrator

Leidos

Confirmed live today High trust

Quick summary

Work type: On-site
Location: Beavercreek, OH
Salary: $87,100–$157,450 / yr
Employment: Full-time
Posted: 3 days ago
Freshness: Confirmed live today
Nearby: 63 roles within 25 mi

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $139k

This role $122k

$78k most similar roles pay here $176k

This role pays less than 63% of similar roles. Most pay $110,844–$166,449 — the shaded band above. At the midpoint, this role pays about $122k versus about $139k 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 357 open roles on FindRole.

Listed pay typically runs $92,300–$166,850 across 305 roles with salary data.

Most-posted roles

View all roles at Leidos

At a glance

TL;DR · Linux and Windows Systems Administrator

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The Linux and Windows Systems Administrator joins the Corporate Information Security Office to support and maintain complex classified environments. This role involves administering, securing, and troubleshooting Windows Workstations, Windows Server, and Linux systems including RHEL, Rocky Linux, and Ubuntu across physical, virtual, and air-gapped infrastructures. The administrator will perform Tier 2 incident resolution, root-cause analysis, system patching, vulnerability remediation, and configuration management. Key responsibilities include managing Active Directory, DNS, DHCP, file servers, and Layer 2 network switching with VLAN configurations. To ensure security compliance, the role requires implementing DISA STIGs, SCAP, and NIST 800-53 controls. Technical skills required include proficiency in PowerShell, Bash, and Ansible for automation, as well as experience with PXE, Kickstart, and disk imaging. The position focuses on maintaining system availability and reliability within a secure enterprise environment.

Skills

Windows Server Linux RHEL Rocky Linux Ubuntu Active Directory DNS DHCP PowerShell Bash Ansible VMware Hyper-V TCP/IP VLAN PXE Kickstart DISA STIGs SCAP NIST 800-53 Tenable Nessus

What you'll do

Administer and maintain Windows and Linux systems across physical, virtual, and air-gapped environments.
Perform Tier 2 incident resolution, root-cause analysis, and troubleshooting for complex technical issues.
Execute system patching, vulnerability remediation, and configuration management to ensure security compliance.
Implement and maintain monitoring, logging, backup, recovery solutions, and operational runbooks.
Manage account access based on least-privilege principles and organizational security policies.
Automate repetitive administrative tasks using PowerShell, Bash, or Ansible.
Deploy operating system images using PXE, Kickstart, and other automated installation methods.
Perform system hardening and compliance checks using DISA STIGs, SCAP, and NIST 800-53 controls.

What we're looking for

Must possess an active DoD Secret security clearance.
Must hold a current CompTIA Security+ certification.
Bachelor's degree in a technical field or additional years of experience in lieu of a degree.
4 to 8 years of relevant experience for candidates with a bachelor's degree.
Experience administering Windows and Linux systems (RHEL, Rocky Linux, Ubuntu) in secure or air-gapped environments.
Experience implementing DISA STIGs, SCAP, NIST 800-53 security controls, and system hardening practices.
Experience with Active Directory, DNS, DHCP, file servers, and Layer 2 network switching.
Ability to develop automation scripts using PowerShell and Bash; Red Hat Certified System Administrator (RHCSA) preferred.

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