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Linux Security Administrator Jobs (NOW HIRING)

Hearst

Lead Security Administrator

Dallas, TX · Hybrid

The Lead Security Administrator designs, builds, and documents new and existing environments. We ... Windows/Linux security/administration knowledge * Experience with load balancers such as NetScaler ...

RIT Solutions, Inc.

Sr. Linux Analyst

Glendale, CA · On-site

We are seeking a skilled Linux Endpoint Security Analyst with strong experience in analyzing Linux environments for endpoint management and security. The ideal candidate will be responsible for ...

Holtec International

Linux Administrator

Camden, NJ · On-site

$125K - $145K/yr

Ensure all Linux systems adhere to IT compliance and security controls through proper configuration ... Administer and manage J2EE-based applications on Linux platforms. * Administer and manage high ...

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How much do linux security administrator jobs pay per hour?

As of May 28, 2026, the average hourly pay for linux security administrator in the United States is $48.08, according to ZipRecruiter salary data. Most workers in this role earn between $48.08 and $48.08 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Linux Security Administrator, and why are they important?

To thrive as a Linux Security Administrator, you need a strong background in Linux system administration, network security, and an understanding of cybersecurity principles, often supported by a degree in computer science or related certifications like CompTIA Security+ or Red Hat Certified Engineer (RHCE). Familiarity with security tools such as SELinux, firewalls (iptables, nftables), intrusion detection systems (Snort, OSSEC), and scripting languages like Bash or Python is typically required. Analytical thinking, attention to detail, and effective communication are critical soft skills for proactively identifying vulnerabilities and collaborating with IT teams. These skills are essential for protecting systems against threats, ensuring compliance, and maintaining the integrity and availability of organizational data.

What are some common challenges faced by Linux Security Administrators in maintaining system security across diverse environments?

Linux Security Administrators often encounter challenges such as managing security updates across multiple distributions, ensuring consistent configuration in hybrid cloud and on-premises environments, and responding to emerging threats. They must balance proactive hardening measures with business needs to avoid disrupting operations. Collaboration with development, network, and compliance teams is key to implementing effective security controls and incident response procedures. Staying current with vulnerabilities and regulatory requirements is also essential for success in this role.

What does a Linux Security Administrator do?

A Linux Security Administrator is responsible for securing Linux-based systems and networks within an organization. This includes managing firewalls, monitoring for vulnerabilities, applying security patches, and responding to security incidents. They also develop and enforce security policies, perform regular audits, and ensure compliance with relevant regulations. Their work is crucial in protecting sensitive data and maintaining the integrity and availability of IT infrastructure.

What is the difference between Linux Security Administrator vs Linux System Administrator?

AspectLinux Security AdministratorLinux System Administrator
Primary FocusSecurity management, vulnerability mitigation, access controlsSystem setup, maintenance, performance, and troubleshooting
CertificationsCompTIA Security+, CISSP, Linux Security certificationsCompTIA Linux+, LPIC-1, RHCSA
Work EnvironmentSecurity teams, cybersecurity departments, IT security firmsIT departments, data centers, enterprise networks
ResponsibilitiesImplementing security policies, monitoring threats, managing firewallsInstalling OS, configuring servers, managing user accounts

The Linux Security Administrator primarily focuses on protecting Linux systems from security threats, while the Linux System Administrator manages overall system operations and performance. Both roles require Linux certifications and often work within the same environments, but their core responsibilities differ significantly in scope and focus.

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Linux Security Administrator jobs near you
Infographic showing various Linux Security Administrator job openings in the United States as of May 2026, with employment types broken down into 31% Full Time, 67% Part Time, 1% Temporary, and 1% Contract. Highlights an 98% Physical, and 2% Hybrid job distribution, with an average salary of $100,000 per year, or $48.1 per hour.
Senior Linux Administrator

Senior Linux Administrator

Concept Solutions

Atlantic City, NJ • On-site

$95K - $108K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 27 days ago

Job description

Concept Solutions is seeking a Senior Linux Administrator to support the FAA's Infrastructure & Operations (I&O) Program in managing, securing, automating, and optimizing enterprise Linux and hybrid cloud environments across physical, virtual, and cloud-based infrastructure. This role is responsible for Linux systems administration, OS lifecycle management, automation, security compliance, patching, and infrastructure modernization in support of mission-critical FAA operations.
The Senior Linux Administrator will serve as a technical expert supporting Red Hat Enterprise Linux (RHEL) across enterprise environments. This position focuses on advanced Linux administration, automation, cloud provisioning, security hardening, patching, storage, virtualization, and operational consistency through infrastructure-as-code and DevSecOps practices. The ideal candidate brings strong scripting, cloud, virtualization, and security expertise with the ability to support large-scale enterprise deployments while maintaining FAA operational and compliance standards. Participation in monthly weekend patching rotation with partial flex scheduling.
Linux Systems Administration & Engineering
• Administer, configure, maintain, and troubleshoot enterprise Linux environments consisting of RHEL 7+.
• Manage Linux OS lifecycle processes including automated deployment, provisioning, maintenance, patching, and decommissioning across physical, VMware, Nutanix, and cloud environments
• Build and deploy Linux systems from bare metal, virtual infrastructure, and cloud platforms using standardized automation frameworks
• Manage Linux storage, partitioning, RAID groups, file systems, volume management, and backup/recovery processes
• Support Linux Active Directory integration, FreeIPA authentication services, and enterprise identity management
Automation, Scripting & DevSecOps
• Develop and maintain automation solutions using Python, Bash, PowerShell, Terraform, and Ansible
• Automate OS deployments, patching, software distribution, server configuration, and lifecycle management
• Build and manage AMIs, deployment templates, and cloud/virtual images
• Support Git/Bitbucket workflows and DevSecOps toolchains
• Leverage AI-assisted development tools (e.g., Visual Studio Code frameworks) to improve operational efficiency
Security, Compliance & Patching
• Implement and maintain Linux security controls including SELinux, iptables, STIGs, OpenSTIG, and OS firewall configurations
• Perform vulnerability remediation, security hardening, and compliance validation
• Execute automated OS patching using tools such as Tanium or Red Hat Satellite
• Participate in scheduled monthly patching rotations, including weekend maintenance windows
• Support change control, audit readiness, and agency security initiatives
Cloud, Virtualization & Infrastructure
• Provision and manage AWS/Azure cloud services including EC2, S3, RDS, Security Groups, and cloud accounts
• Support VMware and Nutanix guest OS deployment and management
• Manage enterprise storage solutions across virtualization and cloud platforms
• Troubleshoot network connectivity, TCP/IP, subnetting, and port/service dependencies
Operations, Documentation & Collaboration
• Support incident, service request, and break-fix activities through Jira and ServiceNow
• Document operational procedures, deployment processes, and technical standards in internal knowledge bases/Wikis
• Collaborate with Agile teams, infrastructure engineers, security teams, and application owners
• Provide exceptional customer service while supporting enterprise stakeholders
Requirements
• Bachelor's degree in Information Technology, Computer Science, or related field and 8+ years of relevant experience
• Strong experience administering Red Hat Enterprise Linux (RHEL 7+) environments
• Strong scripting experience in Python and Bash
• Experience with Terraform, Ansible, PowerShell, Git/Bitbucket
• Knowledge of Linux security including SELinux, iptables, STIG implementation, OpenSTIG
• Experience with AWS/Azure cloud provisioning
• Experience with VMware and/or Nutanix
• Knowledge of Active Directory integration
• Experience with Tanium, Satellite, or enterprise patch automation
• Strong TCP/IP networking fundamentals
• Ability to obtain RHCSA certification or equivalent
Preferred Qualifications
• AWS Cloud certifications (Cloud Practitioner plus advanced certification such as Solutions Architect, Developer, or Security)
• Experience with FreeIPA
• Experience supporting large-scale federal or regulated enterprise environments
• Familiarity with Agile/DevSecOps methodologies
• Experience with enterprise backup/recovery strategies
Work Location and Schedule
Primary Location: Atlantic City, NJ
Schedule: Hybrid- 3 days a week in the office
FAA Personnel Suitability clearance required (AMS 3.14-2)
Compensation: $95K to $108K
Company Profile:
Founded in 1999 and headquartered in Reston, Virginia, Concept Solutions, LLC (CS) is a leading small business in technology, engineering, and management consulting. We are the innovative and agile force behind strategic solutions that enhance organizational efficiency and safeguard our nation across Aerospace, Defense, and National Security sectors.
For over 25 years, CS has been a trusted partner for the Federal Aviation Administration (FAA), Department of Homeland Security (DHS), Department of Justice (DOJ), Department of Defense (DoD) and other federal agencies delivering vital IT, security, and project management services.
Our commitment to excellence is reflected in our adherence to CMMI-DEV ML3, ISO 9001:2015, ISO/IEC 20000-1:2018, and ISO/IEC 27001-1:2013 standards. CS boasts company highlights that include:
Over two decades of experience across over $300 million in contract awards supporting critical FAA programs
Multiple contract vehicles providing opportunities across FAA, DoD, NOAA, and other Federal agencies
Innovation Council - CS maintains an active Internal Research and Development (IR&D) program that is geared towards identifying emerging technologies and pursuing technological innovations
At CS, we know our success stems from our talented team. That's why we prioritize the wellbeing and growth of our employees, fostering a positive culture centered on innovation, engagement, and career development.
Benefits: Concept Solutions offers a competitive benefits and salary package you would receive from a large company. We offer health, dental, vision and life insurance, as well as a comprehensive 401(k) plan with matching and immediate vesting.
Concept Solutions is an Equal Opportunity Employer, and we value workplace diversity. We invite resumes from all interested parties and consider applicants for all positions without regard to race, color, religion, sex, national origin, age, marital status, sexual preference, personal appearance, family responsibility, the presence of a non-job-related medical condition or physical disability, matriculation, political affiliation, veteran status, or any other legally protected status. Concept Solutions is a VEVRAA federal contractor, and we request priority referral of veterans for available positions.

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