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# Senior Systems Administrator (Unix/Linux)

- **Company:** ASTRION, INC.
- **Location:** Dahlgren, VA, United States
- **Experience:** Expert
- **Salary:** $130,000.0 - $145,000.0
- **Contract:** Permanent contract
- **Skills:** Unix, CompTIA Security+, Information Systems, Computer Engineering, Linux, Network Security, Linux System Administration, Network Protocols, Performance Tuning, Software Systems, Systems Integration, TCP/IP, Reliability of Systems, Information Technology, Operational Systems, Network Optimization
- **Published:** July 17, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9036081/senior-systems-administrator-unixlinux

## About the Role

* Six (6) years of professional experience in Unix and/or Linux system administration of networks and software systems
 * Experience in system backup and recovery; basic software management; security management and library management; installation and configuration of hardware; operational systems and COTS software; operating computer systems in different operating environments; and sizing, performance, tuning, hardware/software/network trouble shooting and resource allocation.
 * Qualified experience in different network protocols including TCP/IP and major network security tools such as: firewalls, knowledge of computing and networking vulnerabilities, attach methods and latest detection methods.
 * This position is required to be designated as IAT III level with a T5 .
 * Applicants must have an active TOP SECRET clearance, * Master's level degree in Electrical/Electronic/Computer Engineering, Computer Science, or Information Systems.
 * CompTIA Security+, CompTIA CySA +, or CCNA

#CJ

## Description

Astrion has a contingent opening for a S enior Systems Administrator (Unix/Linux) supporting the U.S. Navy's Naval Surface Warfare Center Dahlgren Division (NSWCDD), located in Dahlgren, VA. As a Senior Systems Administrator (Unix/Linux) you will oversee the administration, configuration, and security of Unix and/or Linux network environments and software systems. This role maintains system resilience through lifecycle infrastructure management , handling everything from hardware deployment and COTS software integration to advanced network optimization and security administration. Operating at the highest tier of technical trust, the you will work to secure environments against modern vulnerabilities and attacks while optimizing multi-environment systems for maximum resource efficiency.


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