Senior Systems Administrator (Unix/Linux) with Security Clearance

AstrionDahlgren, VA🇺🇸United StatesPosted Oct 20, 2026

Why This Role Stands Out

Advance your career in a hybrid role where you'll manage and secure critical Unix/Linux environments for the U.S. Navy, leveraging your expertise to ensure system resilience and optimize performance. This senior position offers a competitive salary of $130,000-$145,000 and the opportunity to work with a reputable organization, making it an excellent fit for experienced systems administrators with a Top Secret clearance. Don't miss this chance to contribute to vital national security initiatives and grow your skills in a dynamic setting.

Quick Overview

Salary

$130k - $145k/yr

Seniority

Mid Senior

Employment type

Employee

Work mode

Hybrid

Location

Dahlgren, VA, United States

Posted

Yesterday

TCP/IPLinuxNetwork Administration

Job Description

Overview Senior Systems Administrator (Unix/Linux) JOB LOCATION: Dahlgren, Virginia JOB STATUS: Full Time CLEARANCE: Top Secret TRAVEL: Less than 10% SALARY: $130,000 to $140,600 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. REQUIRED QUALIFICATIONS / SKILLS

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 .

PREFERRED QUALIFICATIONS / SKILLS

Master's level degree in Electrical/Electronic/Computer Engineering, Computer Science, or Information Systems.
CompTIA Security+, CompTIA CySA +, or CCNA #CJ