Linux Administrator

The Aerospace Corporation•El Segundo, CA

1d•Onsite

About The Position

The Aerospace Corporation is seeking a talented Linux Administrator (Systems Administration Staff II/III) to bring enterprise Linux expertise to our dynamic team. You will play a crucial role in supporting critical systems in both unclassified and classified environments, enabling our aerospace engineering teams to perform advanced scientific and engineering analyses that safeguard our nation’s vital space assets. Your responsibilities include provisioning, troubleshooting, patching, and implementing security hardening measures on Linux systems, ensuring optimal performance and reliability. If you excel at delivering expert user support and thrive in a mission-critical, dynamic environment, we invite you to join our innovative team. The selected candidate will be required to work full-time on-site at our facility in El Segundo, CA.

Requirements

Must have successfully completed secondary education through a High School Diploma or GED equivalent, required
A minimum of (1) or more years of increasingly responsible and relevant professional experience in Red Hat Enterprise Linux (RHEL) or its clones (CentOS, Oracle, Rocky, Alma) Linux systems administration, including provisioning, patching individual systems, basic troubleshooting, and implementing security hardening for enterprise environments is required
Experience with Linux installation hardware troubleshooting and configuration
Install Red Hat Enterprise Linux, Oracle Linux, and Ubuntu Linux on physical systems, including implementing encryption-at-rest (LUKS)
Deploy robust Linux virtual machines using automation tools and industry best practices to ensure rapid scalability, optimized performance, and robust security in mission-critical environments
Patch, reboot, and troubleshoot patching processes (e.g. GPU drivers & kernel modules) and patching infrastructure on large networks and in stand-alone (air-gapped) networks
Provide enterprise Linux troubleshooting, tier 2 and 3 Linux user support‚ including software installation, configuration
This position requires ability to obtain and maintain a security clearance, which is issued by the U.S. government. U.S. citizenship is required to obtain a security clearance
A minimum of (3) or more years of increasingly responsible and relevant professional experience in Red Hat Enterprise Linux (RHEL) or its clones (CentOS, Oracle, Rocky, Alma) Linux systems administration, including provisioning, patching individual systems, basic troubleshooting, and implementing security hardening for enterprise environments is required
One or more of the following: certification such as Red Hat Certified System Administrator, bash or shell scripting skill, Infrastructure-as-Code (e.g. Puppet, Ansible) skills & experience, Linux performance troubleshooting & tuning, experience configuring and managing access to NFS file system shares, Active Directory integration with Linux is required

Nice To Haves

DoD approved 8570 baseline certification such as Security+, CISSP, or equivalent is strongly preferred
Experience automating & scaling Linux system administration across many systems is a value add
LUKS (+Clevis and Tang) skill or experience is desirable
Ubuntu Linux skill and experience is preferred
The ability to obtain and maintain a Secret security clearance, which is issued by the U.S. government is ideal.
A Top Secret security clearance or TS/SCI is strongly preferred.
U.S. citizenship is required to obtain a security clearance

Responsibilities

Oversee comprehensive backup and restoration processes for system, user data, and configuration settings to ensure data integrity, rapid recovery, and minimal operational disruption
Provide comprehensive technical support to scientists and engineers, ensuring seamless execution of critical workloads and applications on Linux systems through proactive monitoring, swift troubleshooting, and optimized performance tuning
Proactively implement robust security hardening measures and swiftly remediate vulnerabilities to safeguard critical infrastructures and ensure continuous system integrity
Monitor availability, improve monitoring, and restore systems and services in a timely manner and improve prevention and reduce future outages
Develop and refine clear, comprehensive documentation for processes and procedures, ensuring consistency, usability, and alignment with best practices

Benefits

Comprehensive health care and wellness plans
Paid holidays, sick time, and vacation
Standard and alternate work schedules, including telework options
401(k) Plan — Employees receive a total company-paid benefit of 8%, 10%, or 12% of eligible compensation based on years of service and matching contributions; employees are immediately eligible and vested in the plan upon hire
Flexible spending accounts
Variable pay program for exceptional contributions
Relocation assistance
Professional growth and development programs to help advance your career
Education assistance programs
An inclusive work environment built on teamwork, flexibility, and respect