Windows & Linux System Administrator

Zachary Piper Solutions; San Diego, Northern (CA, KY); On-site; USD 110,000 - 115,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

401(k)

Paid Time Off (PTO)

Sick Leave

Job summary

Zachary Piper Solutions is seeking a Windows & Linux System Administrator to support NIWC Pacific in San Diego, California. The role focuses on administering Windows 11 and RHEL systems, automating with PowerShell, Bash, and Ansible, and enforcing DoD security standards in a mission-critical environment.

The position requires an active secret clearance and IAT II certification with 3+ years of Windows and RHEL experience, plus strong scripting and vulnerability management skills.

Qualifications

• Active Secret Clearance required.
• DoD 8570/8140 IAT Level II certs (e.g., Security+ CE, GSEC, SCNP, SSCP) required.
• 3+ years administering Windows systems.
• 3+ years administering RHEL systems.
• Proficiency with PowerShell and Bash scripting.
• IAVM process experience, including STIG implementation and patch management.
• Strong troubleshooting and system administration skills.

Responsibilities

• Administer and maintain Windows 11 and RHEL systems.
• Develop and use PowerShell and Bash scripts to automate tasks.
• Harden OS and servers per DISA STIGs and DoD guidance.
• Implement Ansible playbooks for automation.
• Support vulnerability remediation and patch management.
• Coordinate asset tracking and SOP improvements.
• Assist with vendor quotes and procurement.
• Support secure enclaves and mission-critical environments.

Skills

Active Secret Clearance

IAT Level II

Windows administration

RHEL administration

PowerShell

Bash

Ansible

Automation

Vulnerability management

STIGs

Tools

Ansible

Job description

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.

Key Responsibilities

• Administer and maintain Windows 11 and Red Hat Enterprise Linux (RHEL) systems.
• Develop, maintain, and utilize PowerShell 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.

Requirements

• 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 PowerShell and Bash scripts.
• Experience with the IAVM process, including STIG implementation and patch management.
• Strong troubleshooting and system administration skills.

Desired Qualifications

• 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.

Compensation:

• 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.

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#LI-ONSITE

Keywords: Windows Administration, Linux Administration, RHEL, Red Hat Enterprise Linux, Windows 11, PowerShell, Bash Scripting, Ansible, Automation, System Administration, IAVM, STIG, DISA Compliance, Endpoint Security, Patch Management, Secure Enclaves, Infrastructure Engineering, DoD Cybersecurity, Asset Management, Server Hardening, Secret Clearance, NIWC Pacific, RDT&E, Network Security, Vulnerability Management, Systems Engineering, Navy, NIWC