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Senior Systems Administrator (Unix/Linux)

Astrion
United States, Virginia, Dahlgren
Jul 17, 2026
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 $145,000

Astrion has acontingentopening for a SeniorSystems Administrator (Unix/Linux) supportingthe U.S. Navy'sNaval Surface Warfare Center Dahlgren Division (NSWCDD), located inDahlgren, VA. As aSenior Systems Administrator (Unix/Linux)you will overseethe administration, configuration, and security of Unix and/or Linux network environments and software systems. This rolemaintainssystem 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,theyouwill work tosecure environments against modern vulnerabilities and attacks whileoptimizingmulti-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 toolssuch as:firewalls, knowledge of computing and networking vulnerabilities, attach methods and latest detection methods.
  • This positionis required tobe designated as IAT III level with a T5.
  • Applicants must have an activeTOPSECRET clearance

PREFERRED QUALIFICATIONS / SKILLS

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

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