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Peraton · 1 month ago

Linux Systems Administrator / Engineer - active Secret

Warner Robins, GA

Full-time

Onsite

Senior Level

$86K/yr - $138K/yr

5+ years exp

Peraton is a next-generation national security company focused on delivering trusted solutions and technologies. The Linux Systems Administrator/Engineer will manage a large RHEL environment, ensuring its health, stability, and performance while driving security hardening and compliance activities.

Information TechnologyRobotics

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Manage the lifecycle of a 150+ node RHEL environment including provisioning, patching, configuration management, and system optimization

Perform troubleshooting across OS, application, network, and storage layers in collaboration with other engineering teams

Maintain system availability, performance, and reliability through proactive monitoring, tuning, and root-cause analysis

Support deployments, upgrades, modernization initiatives, migrations, and infrastructure expansion projects

Develop and enhance automation for common operational tasks using Ansible, Bash, and Python

Administer core services (e.g., SSH, systemd, logging, networking, NFS/SMB, web services, SELinux)

Apply and maintain DISA STIGs and DoD security baselines across Linux systems

Conduct vulnerability scanning (ACAS/Nessus/OpenSCAP), evaluate CVEs, and drive remediation efforts

Participate in RMF/ATO documentation, evidence collection, audit support, and POA&M maintenance

Ensure consistent application of security controls, patch standards, and system compliance requirements

Integrate Linux logs and events into enterprise security and monitoring platforms (Splunk, syslog, etc.)

Support implementation of authentication, MFA, certificate-based access, and secure communications

Qualification

RHEL administrationDoD security complianceVulnerability remediationAutomation toolsKernel hardeningACAS/NessusVMware vSphereContainersRed Hat Certified EngineerBashPythonSplunkNagios