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# System Administrator

- **Company:** AV, Inc.
- **Location:** Annapolis, MD, United States
- **Experience:** Expert
- **Salary:** $150,000.0 - $175,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Unix, Client Server Models, Information Systems, System Configuration, Network Architecture, Red Hat Enterprise Linux, Software Systems, Software Vulnerability Management, Virtual Environment, Information Technology, Nessus, Multiplatform
- **Published:** September 15, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9165019/system-administrator

## About the Role

* Bachelor's degree in Information Technology, Information Systems, Computuer Engineering, or related field is required or equivalent combination of education, and experience
 * Minimum 10+ years of system administration experience
 * Strong RedHat Linux and Windows (2012/2016/2019) troubleshooting skills.
 * Familiarity with Nessus, POA&Ms, and STE/STN initiatives.
 * Experience configuring UNIX and Windows environments.
 * An active TS/SCI with Polygraph.

Other Qualification & Desired Competencies:

 * Experience with virtual environments and system capacity planning.

## Description

The primary role of the System Administrator is to manage and support mission-critical IT infrastructure. This role involves day-to-day operations, troubleshooting, and maintenance across Windows and UNIX systems. You'll work directly with both hardware and software systems in a dynamic, multi-platform environment., * Provide Tier I and II IT support and problem resolution.

 * Manage client/server/storage/network infrastructure.
 * Configure and manage RedHat Linux and Windows systems.
 * Support vulnerability management using Nessus.
 * Handle STE/STN scoring and documentation.
 * Maintain POA&Ms and patch systems based on security and functional parameters.
 * Collaborate with hardware vendors on system specs and refreshes.
 * Analyze escalated issues and provide actionable feedback.


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