Linux Systems Administrator – Active Security Clearance Required

Company Description

Join us and make YOUR mark on the World!

Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability. 

Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact.

Job Description

We're looking for a Linux Systems Administrator to provide advanced technical computer support for systems in a heterogeneous environment to solve a variety of complex technical problems in a timely manner. This position is in the Information Technology Operations (ITO) Division within the Computing Directorate.

This position requires full-time on-site presence due to the nature of the work. Telecommuting options are not available.

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

• Provide Tier 3 support for Linux systems, including incident resolution, root cause analysis, and long-term remediation on classified and unclassified networks.
• Design, implement, and maintain secure, highly available Linux server environments (RHEL, Rocky, Alma, Ubuntu, or similar distributions).
• Implement and maintain system hardening in alignment with security policies, STIGs, CIS benchmarks, and relevant compliance frameworks.
• Monitor system performance and capacity, and propose improvements to reliability, scalability, and security.
• Create and maintain documentation for system architectures, procedures, runbooks, and troubleshooting guides.
• Collaborate with cybersecurity teams to support vulnerability management, incident response, and audit activities on both classified and unclassified systems.
• Manage the operations of the Linux storage environments.
• Perform installation of software releases, patches of operating systems and utilities, third-party products, and open-source software.
• Collaborate with management, customers, and team members to evaluate and recommend procurement of Linux hardware and software.
• Perform other duties as assigned.

Additional job responsibilities at the 393.2 Level

• Diagnose, troubleshoot, and resolve complex system and network related problems.
• Serve as a technical leader, internal and external consultant in area of expertise, providing highly advanced technical assistance to the use community and collaborating with customers in the design of their computing environment.
• Implement highly advanced designs, produced in collaboration with data scientists and infrastructure architects.

Qualifications

• Active DOE Q clearance (or active Top Secret clearance) with the ability to obtain and maintain Sensitive Compartmented Information (SCI) access.
• Ability to successfully complete a lifestyle polygraph as required by the sponsoring program.
• Bachelor’s Degree in a Computer, Information Technology, or Engineering related field or equivalent combination of technical training and experience.
• Strong understanding of networking fundamentals (TCP/IP, DNS, routing, firewalls) as they relate to Linux systems.
• Broad and in-depth knowledge of and technical experience with Linux operating systems and related hardware.
• Experience applying security hardening standards and working in environments with strict security and compliance requirements.
• Experience with complex troubleshooting.
• Advanced ability to set priorities and independently resolve complex problems in a fast-paced environment.
• Experience patching operating systems and performing installation of software releases.
• Proficient interpersonal and communication (verbal and written) skills, with the ability to work independently and interact with a multi-disciplinary staff in a team environment.

Additional Qualifications at the 393.2 Level

• Highly advanced knowledge of and significant technical experience with Linux operating systems, virtual environments, and/or related hardware.
• Experience mentoring employees in technical areas.
• Significant experience as a technical lead on advanced projects, achieving positive results, and driving projects to closure, on time and on budget.

Desired Qualifications

• Broad and in-depth knowledge and technical expertise w