Senior Linux Systems Administrator
About The Position
The Senior Linux Systems Administrator will serve as a technical leader for Red Hat Enterprise Linux (RHEL) platforms supporting classified and unclassified environments. The role combines hands-on system administration, automation, cybersecurity hardening, and infrastructure modernization across a diverse Linux enterprise. The administrator will work on technical challenges in air-gapped and enterprise environments and help shape the architecture and automation strategy for Linux platforms supporting critical mission systems in missile defense, aviation, engineering, modeling and simulation, and software development.
Requirements
- U.S. citizenship.
- Active Secret clearance or ability to obtain and maintain one.
- At least 5 years of experience administering Linux systems in an enterprise environment.
- Experience with Red Hat Enterprise Linux (RHEL).
- Experience with Linux security hardening and system administration best practices.
- Experience with automation, scripting, or configuration management tools such as Ansible, Bash, or Python.
- Experience troubleshooting Linux operating systems, networking, storage, and authentication issues.
- Excellent customer service, written communication, and verbal communication skills.
Nice To Haves
- DISA STIG implementation and compliance experience.
- Red Hat Satellite experience.
- Experience with Identity Management (IdM), SSSD, Kerberos, LDAP, or Active Directory integration.
- Experience with RMF, NIST 800-53, ACAS/Nessus, or cybersecurity compliance activities.
- Experience with Ansible Automation Platform, AWX, or Tower.
- Experience with containers and virtualization technologies.
- Experience in engineering or software development environments.
- Experience with air-gapped or classified DoD systems.
- RHCSA, RHCE, Security+, or similar industry certifications.
Responsibilities
- Design, build, administer, and troubleshoot enterprise RHEL servers and workstations.
- Lead Linux standardization, automation, and modernization initiatives.
- Develop and maintain secure Linux baselines and hardened system images.
- Implement and maintain configuration management and automation using Ansible and scripting technologies.
- Support Linux integration with enterprise identity services, including Active Directory, LDAP, Kerberos, and PKI authentication.
- Manage patching, repository management, and lifecycle operations across connected and disconnected environments.
- Perform performance analysis, troubleshooting, and root cause investigations for complex infrastructure issues.
- Support cybersecurity compliance activities, including STIG implementation, vulnerability remediation, and RMF requirements.
- Mentor junior administrators and serve as the technical escalation point for advanced Linux issues.
- Collaborate with cybersecurity, infrastructure, and program teams to deliver secure and reliable mission systems.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
