Senior Unix/Linux SysAdmin – Top Secret

Astrion; Dahlgren (VA); On-site; USD 130,000 - 145,000; Full time

Job summary

Astrion seeks a Senior Systems Administrator (Unix/Linux) to oversee Unix/Linux environments for NSWCDD at Dahlgren, VA. The role focuses on administration, configuration, and security across multi-environment systems, ensuring resilience and secure operations.

Required 6+ years of Unix/Linux experience, familiarity with network security tools, and active Top Secret clearance. Master’s degree preferred; CCNA/Security+ or CySA+ valued.

Qualifications

• 6+ years of Unix and/or Linux system administration experience.
• Experience in backup/recovery, security management, hardware installation, and performance tuning.
• Familiarity with TCP/IP and common network security tools; vulnerability awareness.

Responsibilities

• Oversee administration, configuration, and security of Unix/Linux environments and software systems.
• Maintain system resilience through lifecycle infrastructure management and resource optimization.
• Work to secure environments against modern vulnerabilities and attacks while supporting multi-environment systems.

Skills

Unix/Linux system administration

Network security awareness

Troubleshooting and system tuning

Education

Master’s degree in Electrical/Electronic/Computer Engineering, CS or Information Systems

Tools

TCP/IP

Firewalls & security tools

COTS software installation & configuration

Job description

Astrion seeks a Senior Systems Administrator (Unix/Linux) to oversee Unix/Linux environments for NSWCDD at Dahlgren, VA. The role focuses on administration, configuration, and security across multi-environment systems, ensuring resilience and secure operations.

Required 6+ years of Unix/Linux experience, familiarity with network security tools, and active Top Secret clearance. Master’s degree preferred; CCNA/Security+ or CySA+ valued.