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Security Linux Essentials Jobs (NOW HIRING)

Govcio LLC

Senior Linux Administrator

San Antonio, TX · On-site

$115K - $135K/yr

GSEC - GIAC Security Essentials Certification; Security+ - CompTIA Security plus; and/or SSCP ... Strong Linux troubleshooting skills across operating system, compute, memory, disk, I/O ...

GDIT

Senior Cybersecurity Engineer

Springfield, VA · On-site

Security & Governance: CISSP, CCSP, CISM, CEH, CAP * Cloud & Platforms: AWS SysOps Administrator, Cloud+, Linux Essentials, Splunk * Tools & Management: ITILv4, Project+, eMASS, HBSS, ACAS Required ...

hochunk

Network Engineer II

Fort Belvoir, VA · On-site

CompTIA IT Fundamentals, CompTIA Cloud Essentials, CompTIA A+, Linux Essentials, Microsoft ... Meade, DISA, and Joint Regional Security Stack (JRSS) intricate network infrastructure, wireless ...

Ho Chunk, Inc.

Network Engineer II

Fort Belvoir, VA · On-site

CompTIA IT Fundamentals, CompTIA Cloud Essentials, CompTIA A+, Linux Essentials, Microsoft ... Meade, DISA, and Joint Regional Security Stack (JRSS) intricate network infrastructure, wireless ...

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Security Linux Essentials information

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$5

$48

How much do security linux essentials jobs pay per hour?

As of Sep 11, 2026, the average hourly pay for security linux essentials 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 is Security Linux Essentials?

Security Linux Essentials refers to the foundational skills and knowledge required to secure Linux-based systems. This includes understanding user and file permissions, configuring firewalls, managing updates and patches, using security tools, and following best practices for system hardening. These essentials are crucial for protecting Linux servers and workstations from unauthorized access and vulnerabilities. Mastery of these concepts is often required for roles in IT security, system administration, and cybersecurity.

What skills and qualifications are needed for Security Linux Essentials?

To thrive in a Security Linux Essentials role, you need a solid understanding of Linux operating systems, basic cybersecurity concepts, and network protocols, often supported by certifications such as CompTIA Linux+ or LPIC-1. Familiarity with security tools like firewalls, intrusion detection systems (IDS), and command-line utilities is essential. Strong analytical thinking, attention to detail, and effective problem-solving skills help professionals identify and mitigate potential threats. These skills ensure robust protection of systems, efficient threat response, and the overall security of organizational infrastructure.

What are common challenges faced by Security Linux Essentials professionals?

Professionals in Security Linux Essentials roles often encounter challenges such as keeping up with rapidly evolving security threats and ensuring all Linux systems are patched and configured securely. Balancing robust security measures with system usability can also be demanding, as overly restrictive settings may impact team productivity. Additionally, collaborating with development and operations teams to implement security best practices across various environments requires strong communication and problem-solving skills.

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

AspectSecurity Linux EssentialsLinux System Administrator
CertificationsLinux Essentials, Security+Linux+, LPIC-1, RHCSA
Work EnvironmentSecurity-focused roles, cybersecurity teamsSystem management, server administration
Industry UsageIT security firms, cybersecurity departmentsIT departments, hosting providers

Security Linux Essentials focuses on foundational security skills within Linux environments, ideal for cybersecurity roles. Linux System Administrators manage and maintain Linux servers, requiring broader system management knowledge. While both roles involve Linux, Security Linux Essentials emphasizes security fundamentals, whereas Linux System Administrators handle overall system operations.

What other helpful pages are available for Security Linux Essentials?

Other pages related to Security Linux Essentials:

Infographic showing various Security Linux Essentials job openings in the United States as of September 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 67% In-person, and 33% Remote job distribution, with an average salary of $100,000 per year, or $48.1 per hour.

Systems Administrator (Linux / RHEL)

Tampa, FL • On-site

General Dynamics Information Technology
IT Services • 10K+ employees
Learn more about General Dynamics Information Technologyexternal

$89K - $120K/yr

Full-time

Retirement, PTO

Posted yesterday

New

General Dynamics Information Technology rating

7.8

Company rating: 7.8 out of 10

Based on 63 frontline employees who took The Breakroom Quiz

Job description

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REQ#: RQ228053Public Trust: None Requisition Type: Regular Your Impact

Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.

Job Description

The Compliance Systems Administrator (Linux / RHEL) plays a critical, hands-on role in securing and maintaining enterprise Red Hat Enterprise Linux (RHEL) and Unix-based operating systems. This position is responsible for the direct technical execution of system hardening, patching, identity integration, and vulnerability remediation to ensure Linux servers and appliances adhere to Department of War (DoW) cybersecurity standards in preparation for CORA cyber inspections.

HOW A Compliance Systems Administrator (Linux) WILL MAKE AN IMPACT

Duties and Responsibilities:

  • Remediate security findings identified through ACAS/Tenable reports and OpenSCAP scans by performing hands-on system patching, configuration updates, and service hardening on RHEL 8/9 systems.

  • Technically implement and maintain compliance with Red Hat Enterprise Linux DISA STIGs, Cyber Tasking Orders (CTOs), and IAVM notices.

  • Configure, troubleshoot, and enforce mandatory access controls using SELinux (Security-Enhanced Linux) in enforcing mode.

  • Manage and maintain central identity, PAM (Pluggable Authentication Modules), SSSD, and DoW PKI/CAC authentication mechanisms for user and administrative access.

  • Configure and maintain host-based firewalls (firewalled/iptables) and audit daemon logging (audited) in strict compliance with DoW auditing requirements.

  • Utilize package management tools (YUM/DNF), Red Hat Satellite, or local repositories to deploy security errata and software updates across air-gapped or restricted networks.

  • Develop and execute Bash and Ansible playbooks to automate STIG hardening, configuration audits, and compliance validation.

  • Develop, implement, and document technical mitigation strategies and POA&Ms for system-specific Linux vulnerabilities that cannot be immediately fixed.

  • Compile technical evidence, OpenSCAP evaluation reports, and configuration artifacts for CORA inspection teams.

Required Qualifications and Certifications:

  • Applicable Intermediate DoW 8140 or DoW 8570 Certification (e.g., Security+ CE, CySA+, Linux+, or SSCP).

  • Bachelor's Degree in a related discipline OR three (3) years of hands-on experience administering and hardening Red Hat Enterprise Linux (RHEL) environments.

  • Direct experience in Linux system administration, command-line operations (CLI), user management, and package patching.

  • Hands-on experience applying DISA STIGs to RHEL systems using SCAP Compliance Checker (SCC) or OpenSCAP.

  • Familiarity with reviewing ACAS/Tenable vulnerability reports and executing Linux-specific remediation steps.

  • Understanding of PKI certificate installation and PAM/SSSD authentication integration.

  • Location: Tampa, Florida (USCENTCOM)

  • Clearance: Active Secret

  • Travel: up to 10% (CONUS/OCONUS)

Desired Skills and Experience:

  • Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE).

  • Experience supporting USCENTCOM Linux server infrastructure.

  • Hands-on experience writing Ansible playbooks and Bash scripts for STIG compliance automation.

  • Experience with Red Hat Satellite Server for centralized lifecycle and errata management.

  • Experience preparing Linux systems for DoD Cyber Defense Command (DCDC) Cyber Operational Risk Assessments (CORA).

GDIT IS YOUR PLACE

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

  • Growth: AI-powered career tool that identifies career steps and learning opportunities

  • Support: An internal mobility team focused on helping you achieve your career goals

  • Rewards: Comprehensive benefits and wellness packages, 401K with company match, competitive pay and paid time off

  • Community: Award-winning culture of innovation and a military-friendly workplace

#gditpriority

#cencomcits

#armajobs

Work Requirements
Years of Experience

3 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Red Hat Certified System Administrator (RHCSA) | Red Hat - Red Hat

Red Hat Certified Engineer (RHCE) | Red Hat - Red Hat

Linux Professional Institute Linux Essentials | Linux Professional Institute (LPI) - Linux Professional Institute (LPI)

CompTIA Security+ CE | CompTIA - CompTIA

Travel Required

Less than 10%

Citizenship

U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $89,250 - $120,750. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.
View information about benefits and our total rewards program.

Our Identity Verification Process

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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About General Dynamics Information Technology

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GDIT is a global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense, and intelligence community. Its 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. The company operates across 50+ countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber, and application development.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Falls Church, VA, US

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