Windows & Linux System Administrator

Zachary Piper Solutions is seeking a Windows & Linux System Administrator to support the Research, Development, Test, and Evaluation (RDT&E) network and secure enclaves supporting NIWC Pacific in San Diego, California
. This onsite position is responsible for maintaining and securing existing infrastructure while supporting the design, engineering, and deployment of new capabilities within a mission-critical environment.

As a Windows & Linux System Administrator, you will play a key role in administering and securing Windows and Red Hat Enterprise Linux systems, implementing automation, ensuring compliance with DoD security requirements, and supporting infrastructure modernization efforts.

• Administer and maintain Windows 11 and Red Hat Enterprise Linux (RHEL) systems.
• Develop, maintain, and utilize Power Shell and Bash scripts to automate system administration tasks.
• Provide technical engineering support and participate in infrastructure design reviews for existing and future environments.
• Harden operating systems and servers in accordance with DISA STIGs
  , CTOs, and other DoD cybersecurity guidance.
• Implement automation solutions using Ansible playbooks
  .
• Support vulnerability remediation efforts, including patching and compliance activities.
• Maintain and update asset tracking databases.
• Collaborate with team members to develop and improve standard operating procedures (SOPs).
• Assist with obtaining vendor quotes and procuring infrastructure assets.
• Coordinate shipment and delivery of equipment to remote teams and locations.
• Support the security and operational readiness of mission-critical environments.

• Active Secret Clearance
  .
• One DoD 8570/8140 IAT Level II certification, including:
  • Security+ CE
  • GIAC Security Essentials Certification (GSEC)
  • Security Certified Network Professional (SCNP)
  • System Security Certified Practitioner (SSCP)
• 3+ years of experience administering Windows systems.
• 3+ years of experience administering RHEL systems.
• Experience developing and using Power Shell and Bash scripts.
• Experience with the IAVM process, including STIG implementation and patch management.
• Strong troubleshooting and system administration skills.

• Additional Windows and RHEL enterprise administration experience.
• Experience developing and maintaining Ansible automation playbooks.
• Experience supporting endpoint security technologies.
• Familiarity with DoD cybersecurity compliance requirements and secure enclave environments.

• Salary Range: $110,000 - $115,000 depending on experience
• Full Benefits Include:
  • Medical Insurance
  • Dental Insurance
  • Vision Insurance
  • 401(k)
  • Paid Time Off (PTO)
  • Sick Leave (where required by law)

This job opens for applications on 8/18/2026. Applications for this position will be accepted for at least 30 days from the posting date.

#LI-CB1

#LI-ONSITE