Sr. Linux Systems Administrator (TS​/SCI CI Poly

Job Posting

Zachary Piper Solutions is seeking a Systems Administrator to support a complex, multi-site IT infrastructure based in El Segundo, CA. This role is centered around Red Hat Linux-based High-Performance Computing (HPC) clusters and includes support for secure lab environments, classified networks, and future integration of embedded Linux systems like VxWorks.

Key Responsibilities:

• Design and implement secure system architectures using best practices in software and systems engineering
• Provide end-to-end IT support across desktops, servers, and virtualized environments
• Manage system access, patching, and hardware/software release planning
• Administer and maintain Linux (RHEL) and Windows systems
• Troubleshoot complex system issues and automate tasks using scripting (e.g., Power Shell)
• Support classified networks and ensure compliance with RMF/JSIG security standards
• Integrate and maintain applications and infrastructure in secure environments

Basic Qualifications:

• Active TS/SCI with a CI Polygraph (CI Poly within the last 5 years)
• 5+ years of experience supporting lab/test environments and classified networks
• Strong background in Linux and Windows OS installation, configuration, and troubleshooting
• Hands-on experience with IT hardware, networking equipment, and HPC systems
• The ability to stand up virtual Linux environments
• Security+ certification (or ability to obtain within 6 months)

Preferred Qualifications:

• Deep experience with RHEL, Windows Server/Desktop, VMware, and Active Directory
• Experience with Embedded Linux
• Familiarity with Group Policy Objects (GPOs), Power Shell scripting, and Agile methodologies
• Experience with system backups, patching, and COTS software
• Knowledge of RMF/JSIG compliance and secure system integration

Compensation:

Salary: $140,000 - $205,000 (based on experience and education) Benefits:
Comprehensive package including medical, dental, vision, 401(k), 20 days paid time off, 11 federal holidays, and sick leave