Linux Systems Administrator

We have an opening for an experienced Linux Systems Administrator to help design automate secure and support enterprise Red Hat Enterprise Linux services in a highly regulated environment. This role is ideal for someone who enjoys combining hands-on operations platform engineering and security compliance to support mission-critical computing services. This position is in the Information Technology Solutions (ITSD) Division within the Computing Directorate.

This position requires full-time on-site presence due to the nature of the work.

This position will be filled at either level based on knowledge and related experience as assessed by the hiring team. Additional job responsibilities (outlined below) will be assigned if hired at the higher level.

You will 

• Perform day-to-day operational support functions including complex problem isolation and remediation while exercising sound judgment and a moderate degree of independence.
• Contribute to the design integration and lifecycle management of Red Hat Enterprise Linux including:
  • provisioning workflows including Kickstart configurations and FIPS mode compatibility
  • integration of core applications and security configurations
  • integration with enterprise identity services including PAM configuration authentication authorization and access controls
  • integration with the broader IT environment
• Contribute to the development implementation testing and validation of security benchmarks (DISA STIG) including compliance automation and assessment of operational impact and risk.
• Troubleshoot configure and maintain SELinux policies in support of secure enterprise Linux operations.
• Develop and maintain moderately complex Ansible roles and playbooks using Ansible Automation Platform.
• Create and maintain RPM packages for custom software deployment and updates.
• Develop and maintain scripts in Bash Python or similar languages to automate operational and administrative tasks.
• Maintain and update on-premises Red Hat Satellite services.
• Develop and maintain clear technical documentation to support system administration integration operations and knowledge sharing.
• Collaborate with engineers security teams and other stakeholders.
• Perform other duties as assigned.

Additional job responsibilities at the SES.3 level 

• Independently diagnose troubleshoot and resolve complex Linux operating system and platform issues in a regulated enterprise environment.
• Architect develop and maintain highly complex Ansible roles playbooks and automation workflows.
• Develop advanced scripts tools or small-scale programs to solve complex operational integration and security problems.
• Lead the technical design and implementation of complex Linux platform initiatives including advising on architecture security automation and operational best practices.
• Serve as a technical leader in areas of expertise providing advanced guidance mentorship and technical assistance to a range of audiences.

Qualifications :

• Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship. 
• Bachelors Degree in a Computer Science Information Technology or Engineering related field or equivalent combination of technical training and experience.
• Comprehensive experience administering Linux systems in command-line environments including shell navigation file editing shell pipelines SSH and common text-processing tools such as grep sed or awk.
• Broad experience troubleshooting and configuring Linux security controls and applying computer security concepts and best practices.
• Proficient experience with Bash or Python scripting for system administration or task automation.
• Proficient ability to prioritize work solve moderately complex technical problems and operate effectively with limited supervision.
• Proficient verbal and written communication skills necessary to collaborate effectively with engineers security teams and other stakeholders.

Additional qualifications at the SES.3 level 

• Advanced experience administering Linux operating systems in complex enterprise environments.
• Significant experience leading technical projects or initiatives including independently planning and executing complex technical work coordinating with stakeholders guiding others as needed and driving work to completion.
• Advanced experience developing Bash or Python scripts or software tools in higher-level programming languages to solve complex administrative or operational problems.
• Significant experience developing complex regular expressions and using advanced text-processing techniques for system administration automation or data analysis tasks.

Qualifications We Desire

• Experience with the broader Red Hat ecosystem of enterprise management tools and services.
• Experience administering Linux operating systems in disconnected highly secure environments.
• Experience with infrastructure and operations technologies such as VMware DNS Git firewalld nftables iptables Splunk Nagios cloud technologies or Podman and other container technologies.
• Advanced experience integrating Linux systems with enterprise identity and authentication services such as Active Directory Kerberos Winbind/Samba SSSD or Realm.

Pay Range

$146340 - $185544 Yearly at the SES.2 level

$175530 - $222564 Yearly at the SES.3 level

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage.  An employees position within the salary range will be based on several factors including but not limited to specific competencies relevant education qualifications certifications experience skills seniority geographic location performance and business or organizational needs.

Additional Information :

#LI-Onsite

Position Information

This is a Career Indefinite position open to Lab employees and external candidates.

Why Lawrence Livermore National Laboratory

• Included in 2026 Best Places to Work by Glassdoor!
• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules (*depending on project needs)
• Our values - visit  Clearance

  This position requires a Department of Energy (DOE) Q-level clearance.  If you are selected we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also all L or Q cleared employees are subject to random drug testing.  Q-level clearance requires U.S. citizenship. 

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  Remote Work :

  No

  
  

  Employment Type :

  Full-time