ZipRecruiter

Log In

1

Cyber Linux System Administrator Jobs (NOW HIRING)

BAE Systems

Linux System Administrator

Vicksburg, MS · On-site

Our pride and dedication shows in everything we do-from intelligence analysis, cyber operations and ... BAE Systems is seeking Linux Administrators to support a team of administrators with standard Linux ...

CACI

Linux System Administrator

Washington, DC · Hybrid

Linux System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: None Type of ...

Nwis

Linux System Administrator

Arlington, VA · On-site

$99K - $206K/yr

Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability ... Linux Systems Administrator to support the design, development, and deployment of advanced ...

Nwis

Linux System Administrator

Arlington, VA · On-site

$77K - $163K/yr

Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability ... Linux Systems Administrator to support the design, development, and deployment of advanced ...

BAE Systems

Linux System Administrator

Vicksburg, MS · On-site

Our pride and dedication shows in everything we do-from intelligence analysis, cyber operations and ... BAE Systems is seeking Linux Administrators to support a team of administrators with standard Linux ...

Nightwing

Linux System Administrator

Arlington, VA · On-site

$77K - $163K/yr

Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability ... Linux Systems Administrator to support the design, development, and deployment of advanced ...

Nightwing

Linux System Administrator

Arlington, VA · On-site

$99K - $206K/yr

Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability ... Linux Systems Administrator to support the design, development, and deployment of advanced ...

Cymertek Corporation

Linux System Administrator

Aurora, CO · On-site

$80 - $100/hr

Linux System Administrator LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and skilled Linux ...

next page

Showing results 1-20

All JobsTechnology JobsNetworking JobsLinux Administrator JobsCyber Linux System Administrator Jobs

Cyber Linux System Administrator information

See salary details

$20

$51

$75

How much do cyber linux system administrator jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for cyber linux system administrator in the United States is $51.96, according to ZipRecruiter salary data. Most workers in this role earn between $41.11 and $62.50 per hour, depending on experience, location, and employer.

What is the difference between Cyber Linux System Administrator vs Network Security Engineer?

AspectCyber Linux System AdministratorNetwork Security Engineer
CertificationsLinux+, CompTIA Security+, CEHCISSP, CEH, CCNP Security
Work EnvironmentLinux servers, data centers, cloud platformsNetwork infrastructure, firewalls, intrusion detection systems
Primary FocusManaging Linux systems, ensuring server securityProtecting network infrastructure from threats
Common TasksSystem updates, user management, security patchesFirewall configuration, vulnerability assessment, incident response

The Cyber Linux System Administrator primarily manages Linux-based systems and ensures their security, while the Network Security Engineer focuses on safeguarding network infrastructure from cyber threats. Both roles require security certifications and work in overlapping environments but have distinct core responsibilities.

What are popular job titles related to Cyber Linux System Administrator jobs?

For Cyber Linux System Administrator jobs, the most frequently searched job titles are:

Infographic showing various Cyber Linux System Administrator job openings in the United States as of September 2026, with employment types broken down into 1% As Needed, 85% Full Time, 12% Part Time, and 2% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $108,079 per year, or $52 per hour.

Linux System Administrator

San Antonio, TX • On-site

G6 Cyber Solutions
See more jobs at G6 Cyber Solutionsexternal

Full-time

Re-posted 8 days ago

Job description

Job Summary:
G6 Cyber Solutions is at the forefront of delivering innovative technology solutions that enhance national security and support critical military operations. They are seeking a motivated and mission-oriented Linux System Administrator to manage and secure internal systems, ensure compliance with Department of War standards, and optimize network infrastructure in a classified environment.
Responsibilities:
• Manage the development, documentation, maintenance, and security of internal systems, including design, configuration, installation, administration, optimization, integration, and integrity.
• Performing network and system security administration, including operating system security configuration, performance monitoring, and account management best practices for MS Servers/Windows and Linux.
• Configure and assist in the design of system and network security.
• Track and monitor patching and STIG applications to the network servers to maintain network health.
• Provide support in restoring critical system services and ensure timely installation of applicable operating system and server software patches.
• Document system infrastructure for users, support personnel, developers, information assurance personnel, and accreditors.
• Managing networking switches, routers, and firewalls, including configuration, monitoring, and troubleshooting in DoD-compliant environments to ensure secure data flow and network integrity.
Qualifications:
Required:
• Experience in system administration, including design, configuration, installation, and optimization of operating systems (Windows, Linux).
• Proven experience in managing hardware, software, and utilities for installation, modification, troubleshooting, maintenance, and upgrades of operating systems on servers.
• Experience in monitoring and analyzing resource usage to recommend enhancements to system capabilities and performance.
• Familiarity with developing accreditation documentation, including Overview 1, 2, and 3 (OV1, OV2, OV3) charts and graphs.
• Experience in restoring critical system services within service level agreement timelines of a system outage and managing software patching within specified timeframes (i.e. 3 business days for critical systems and 10 business days for routine patches).
• Experience in scanning computer networks for vulnerabilities and diagnosing network connectivity issues.
• Understanding of both Linux and Windows command-line interfaces (CLI).
• CompTIA Security+
• Red Hat Certified System Administrator (RHCSA)
• Active TS/SCI clearance
Preferred:
• Experience in Department of War intelligence communities.
• Experience with security features and/or vulnerabilities of various operating systems as defined by NSA, NIST, and/or USCYBERCOM.
• Experience in developing automated scripts for system monitoring and maintenance.
• Experience with Information Assurance (IA) vulnerability identification/remediation/testing and related network and system test tools (e.g., Security Content Automation Protocol (SCAP)).
• Experience with information security toolsets such as anti-virus, Security Information and Event Management (SIEM), and/or Host-based Intrusion Detection Systems/Network Intrusion Detection Systems (HIDS/NIDS).
• Experience with the Red Hat OpenShift platform.
• Additional certifications in system administration or cybersecurity.
Company:
G6 Cyber Solutions provides cybersecurity, technology, and information operations services. Founded in 2022, the company is headquartered in San Antonio, USA, with a team of 11-50 employees. The company is currently Early Stage.

Apply