DCN Systems Administrator

Zachary Piper Solutions; Maryland; On-site; USD 90,000 - 130,000; Full time

Job summary

Zachary Piper Solutions is seeking a Senior Systems Administrator with TS/SCI clearance to support complex IT infrastructures across the U.S. This role involves implementing secure systems, maintaining Linux and Windows environments, troubleshooting, and ensuring compliance with security standards. The ideal candidate has over 9 years of experience in classified networks, strong skills in OS installation and troubleshooting, and familiarity with VMware and Active Directory. The position is on-site with no telework available.

Qualifications

• Active TS/SCI with Full Scope Polygraph is required.
• 9+ years of experience in lab/test environments and classified networks.
• Strong background in Linux and Windows OS installation and troubleshooting.
• Hands-on experience with IT hardware and networking equipment.

Responsibilities

• Implement secure system designs using best practices.
• Provide end-to-end IT support in secure lab environments.
• Manage system access, patching, and release planning.
• Support classified networks ensuring compliance with security standards.
• Administer and maintain Linux and Windows systems.
• Troubleshoot complex system issues and automate tasks.

Skills

Linux OS installation

Windows OS installation

Troubleshooting

Scripting (PowerShell)

Networking equipment

HPC systems

Tools

VMware

Active Directory

Job description

Senior Systems Administrator – Linux/Windows (TS/SCI with FS Poly)

Location: On-site (No Telework) in Annapolis Junction, MD, Fairfax, VA., El Segundo, CA. Tukwila, WA.

Travel: Up to 10%

Join a dynamic team supporting a complex, multi-site IT infrastructure across the U.S., anchored by Red Hat Linux-based High-Performance Computing Clusters. Our environment integrates tools like Cadence, Atlassian, DOORS, GitHub, and includes both Windows PCs and thin clients. Future plans include incorporating Wind River’s VxWorks embedded Linux.

Key Responsibilities

• Implement secure system designs using best practices in software and systems engineering.
• Provide end-to-end IT support in secure lab environments, from desktops to servers.
• Manage system access, patching, and release planning for hardware/software.
• Support classified networks and ensure compliance with security standards.
• Administer and maintain Linux and Windows systems, including virtualized environments.
• Troubleshoot and resolve complex system issues; automate tasks using scripting (e.g., PowerShell).
• Integrate and maintain applications and infrastructure in accordance with RMF/JSIG standards.

Basic Qualifications

• Active TS/SCI with Full Scope Polygraph (MD Customer)
• CI Poly within the last 5 years
• 9+ years of experience in 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.
• Security+ certification (or ability to obtain within 6 months).

Preferred Qualifications

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