RHEL 8 Linux Systems Administrator
About The Position
We are seeking an experienced RHEL 8+ Linux Systems Administrator specializing in Red Hat Enterprise Linux (RHEL) 8 or later to support and maintain secure, mission-essential, air gapped information systems. You will have a strong background in enterprise Linux administration, cybersecurity best practices, and operations within isolated or high-assurance computing environments working in our El Segundo, CA office. SAIC® [http://www.saic.com/] is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives. We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com [http://www.saic.com/]. For ongoing news, please visit our newsroom [http://www.saic.com/who-we-are/newsroom/].
Requirements
- Experienced RHEL 8+ Linux Systems Administrator
- Specializing in Red Hat Enterprise Linux (RHEL) 8 or later
- Strong background in enterprise Linux administration
- Strong background in cybersecurity best practices
- Experience with operations within isolated or high-assurance computing environments
- Solid problem-solving skills
- Security-first mindset
Responsibilities
- Install, configure, harden, and maintain RHEL 8+ systems across air gapped environments.
- Perform system patching, repository management, and package deployment without external network connectivity.
- Develop and maintain system baselines, documentation, and configuration standards aligned with security and compliance requirements.
- Monitor system performance, troubleshoot issues, and support incident response activities.
- Implement STIGs, CIS benchmarks, and other hardening guidelines as required.
- Support secure configuration of system services, authentication, logging, auditing, and access controls.
- Coordinate with cybersecurity, network, and GRC teams to ensure ongoing compliance with internal and external controls.
- Automate routine tasks using shell scripting, Ansible, or similar tooling.
- Assist with system integration, data transfers, and cross-domain solutions in isolated environments.
- Collaboratively work across cybersecurity, GRC, and infrastructure teams.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
