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Linux Certified Jobs (NOW HIRING)

Leidos

Linux System Administrator

Omaha, NE · On-site

$87K - $157K/yr

Current DoD 8140/8570 compliant IA certification for IAT II (Security+CE or higher). * Must hold ... Working knowledge of Linux and Windows operating systems. * Excellent customer service skills and ...

Nastech Global

SRE Engineer

San Jose, CA · On-site

$66.75 - $88.75/hr

San Jose, CA / RTP, NC(Onsite) Job Type: Full Time Must Have Technical/Functional Skills: * SRE, NetApp Storage, Linux Certified, Kubernetes Certified, DevOps, Docker, etc. * Experienced Senior SRE ...

Leidos

Linux System Administrator

Omaha, NE · On-site

$87K - $157K/yr

Current DoD 8140/8570 compliant IA certification for IAT II (Security+CE or higher). * Must hold ... Working knowledge of Linux and Windows operating systems. * Excellent customer service skills and ...

Apple

Senior Linux System Engineer - ACS

Seattle, WA

$171K - $302K/yr

Design and support Linux systems (RedHat/OEL/CentOS etc) including automated OS installation, Linux certification, compile and validate various kernels, package management, OS lifecycle management ...

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Linux Certified information

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How much do linux certified jobs pay per hour?

As of Jun 18, 2026, the average hourly pay for linux certified in the United States is $55.32, according to ZipRecruiter salary data. Most workers in this role earn between $50.24 and $59.38 per hour, depending on experience, location, and employer.

What is a Linux Certified professional?

A Linux Certified professional is an individual who has passed a certification exam demonstrating their knowledge and skills in managing, configuring, and troubleshooting Linux operating systems. These certifications, such as CompTIA Linux+, Red Hat Certified System Administrator (RHCSA), or LPIC, validate a person's ability to work with Linux in professional IT environments. Having a Linux certification can enhance job opportunities and credibility, especially for roles in system administration, DevOps, and cloud computing.

What are some common challenges faced by Linux Certified professionals in a collaborative IT environment?

Linux Certified professionals often work closely with cross-functional teams, including developers, network engineers, and security analysts. A common challenge is ensuring seamless integration and compatibility between Linux systems and other platforms within an organization. Additionally, troubleshooting complex issues under time constraints and managing system updates without disrupting ongoing operations require strong problem-solving skills. Effective communication and documentation are essential to facilitate collaboration and knowledge sharing across teams.

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

CriteriaLinux CertifiedLinux System Administrator
CertificationsLinux certifications like LPIC, CompTIA Linux+Often requires Linux certifications plus experience
Work EnvironmentData centers, IT departments, server farmsSame as Linux Certified, with additional focus on system management
Employer & Industry UsageTech companies, hosting providers, enterprise ITSame as Linux Certified, with more operational responsibilities
Search & Comparison IntentUnderstanding certification benefits, career pathsJob roles, responsibilities, and qualifications

Linux Certified professionals focus on obtaining certifications to validate their skills, often working in data centers and IT environments. Linux System Administrators typically have certifications plus hands-on experience managing Linux systems. Both roles are vital in tech and enterprise sectors, with overlapping environments and employer types. The main difference lies in the emphasis on certification versus practical system management responsibilities.

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

To thrive as a Linux Certified professional, you need a solid understanding of Linux operating systems, system administration, and networking, typically validated by certifications like CompTIA Linux+ or Red Hat Certified System Administrator (RHCSA). Familiarity with command-line tools, shell scripting, configuration management systems, and monitoring tools is commonly required. Strong problem-solving abilities, attention to detail, and effective communication skills set top performers apart. These competencies ensure reliable system performance, efficient troubleshooting, and secure environments in IT infrastructures.
More about Linux Certified jobs
What cities are hiring for Linux Certified jobs? Cities with the most Linux Certified job openings:
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Linux Certified jobs near you
Infographic showing various Linux Certified job openings in the United States as of June 2026, with employment types broken down into 8% Locum Tenens, 38% Full Time, and 54% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $115,062 per year, or $55.3 per hour.
Linux Subject Matter Expert (SME)

Linux Subject Matter Expert (SME)

DAN Solutions

Bethesda, MD • On-site

Full-time

Posted 16 days ago

Job description

Position Contingent on Funding/Award

We are seeking an experienced Linux Subject Matter Expert (SME) to provide advanced systems engineering and operational support for CDSSF Cross Domain Shared Services Framework within a secure Defense Intelligence Agency (DIA) environment. This role is embedded with our Cross Domain Solutions (CDS) team and is responsible for maintaining, hardening, troubleshooting, and optimizing Linux-based systems across multiple domains and mission enclaves.

The ideal candidate will have a deep understanding of Red Hat Enterprise Linux (RHEL), system hardening (STIG), cross domain security architectures, and the accreditation processes necessary to support Top Secret/Sensitive Compartmented Information (TS/SCI) systems.

Key Responsibilities:

  • Lead system engineering, patching, configuration, and lifecycle maintenance of RHEL/CentOS/Oracle Linux systems supporting CDS environments.
  • Implement and maintain DISA STIG-compliant baselines using automation tools (e.g., Ansible, SCAP, Puppet).
  • Collaborate with CDS engineers, Information Assurance personnel, and enclave leads to meet ATO/RMF compliance.
  • Troubleshoot kernel-level issues, performance bottlenecks, and cross-domain interface stability.
  • Provide SME-level support for SE Linux, LDAP/Kerberos, and auditing solutions (e.g., syslog, Splunk forwarders).
  • Manage OS provisioning, virtual infrastructure (e.g., VMware or KVM), and baseline image creation for cross-domain enclaves.
  • Assist with developing and maintaining infrastructure-as-code configurations and custom scripts (Bash, Python).
  • Serve as Tier III escalation for complex OS issues affecting CDS reliability or availability.
  • Support enclave isolation and guard-side interface requirements under strict security policies.
  • Document engineering decisions, operational procedures, and system configurations for cross-team knowledge sharing and accreditation packages.

Required Qualifications:

  • U.S. Citizen with active TS/SCI clearance and CI Polygraph (or ability to obtain).
  • 8+ years of experience administering Linux systems in a secure, mission-critical environment.
  • 3+ years supporting cross-domain or multi-enclave environments (CDS, Garrison, SMART.NeXT, CDSSF).
  • Advanced knowledge of RHEL 7/8/9, including system hardening and kernel-level tuning.
  • Experience with automation frameworks and scripting languages (Ansible, Bash, Python).
  • Familiarity with RMF/ATO processes and audit log management.
  • Strong understanding of networking (TCP/IP, firewalls, VLANs, DNS) as it relates to Linux systems.

Desired Qualifications:

  • DoD 8570 IAT Level II or III certification (Security+ CE, CASP+, CISSP).
  • Red Hat Certified Engineer (RHCE) or similar Linux certification.
  • Familiarity with CDS guard technologies (Radiant Mercury, Data Diode, Garrison, etc.).
  • Experience with hypervisors and virtual infrastructure supporting isolated environments.
  • Knowledge of Zero Trust, enclave segmentation, and compartmentalized architectures.