Senior Systems Administrator (Windows & Linux)

Piper Companies; Maryland; On-site; USD 80,000 - 200,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401(k)

Paid time off

Job summary

Piper Companies is seeking a Senior Systems Administrator (Windows & Linux) for a government technology client in Annapolis Junction, MD. The role focuses on managing enterprise Windows and Linux environments and ensuring security compliance.

Candidates must hold TS/SCI clearance with FSP and Security+ CE, with hands-on Splunk and Nessus experience. Competitive salary and benefits are offered for this onsite role.

Qualifications

• Active TS/SCI clearance with Full Scope Polygraph (FSP) is required.
• Security+ CE certification or higher is required.
• Hands-on experience administering both Linux and Windows environments.
• Experience with IT security compliance initiatives is required.
• Experience with Splunk and Nessus is preferred.

Responsibilities

• Administer and maintain Windows and Linux server environments.
• Monitor system health, performance, and security compliance.
• Utilize Splunk and Nessus to identify and remediate vulnerabilities.
• Support system patching, upgrades, and hardening activities.
• Troubleshoot complex infrastructure issues across multiple platforms.
• Collaborate with cybersecurity and engineering teams to maintain secure operations.

Skills

TS/SCI clearance

Security+ CE

Linux administration

Windows administration

Vulnerability management

Tools

Splunk

Nessus

Job description

Piper Companies is seeking a Senior Systems Administrator (Windows & Linux) for a government technology client supporting classified programs in Annapolis Junction, MD. The Senior Systems Administrator (Windows & Linux) will manage enterprise operating environments while ensuring compliance with security standards and operational requirements.

Responsibilities of the Senior Systems Administrator (Windows & Linux):

• Administer and maintain Windows and Linux server environments.
• Monitor system health, performance, and security compliance.
• Utilize Splunk and Nessus to identify and remediate vulnerabilities.
• Support system patching, upgrades, and hardening activities.
• Troubleshoot complex infrastructure issues across multiple platforms.
• Collaborate with cybersecurity and engineering teams to maintain secure operations.

Qualifications of the Senior Systems Administrator (Windows & Linux):

• Active TS/SCI clearance with Full Scope Polygraph (FSP).
• Security+ CE certification or higher.
• Experience administering both Linux and Windows environments.
• Experience with IT security compliance initiatives.
• Hands-on experience utilizing Splunk and/or Nessus.
• Strong problem-solving and infrastructure support experience.

Compensation for the Senior Systems Administrator (Windows & Linux) includes:

• Salary range: $80,000 - $200,000 depending on experience
• Comprehensive benefits package including medical, dental, vision, 401(k), and PTO
• Long-term career growth within mission-focused programs

This job opens for applications on 10/27/2026. Applications for this job will be accepted for at least 30 days from the posting date.

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