**Description**

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.

**Key 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 gui...