Hybrid Senior Systems Administrator - DoD Cyber & Linux

Socket.dev; Fort Meade (MD); Hybrid; USD 12,000 - 140,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision coverage

Retirement plans (401(k), ESOP)

Life and disability insurance

Flexible spending accounts

Education and training assistance

Job summary

Foxhole Technology is seeking a Systems Administrator III to provide advanced systems administration and technical support for cyber sensing development within a secure DoD environment. The role focuses on Linux, automation, and security tool administration across DoD networks.

You will implement DoD security requirements (DISA STIGs, RMF, NIST 800-53), manage backups, document procedures, and collaborate with cybersecurity, network, and operations teams to maintain availability and performance

Qualifications

• Active DoD Secret clearance.
• Current DoD 8140/8570 IAT Level II certification (e.g., Security+ CE).
• 8+ years in IT support, help desk, or systems administration.
• Linux operating system expertise and scripting ability.
• Experience with security tooling and DoD cybersecurity requirements (DISA STIGs, RMF, NIST 800-53).
• Experience across on-premises, virtualization, and containerized environments.

Responsibilities

• Perform day-to-day systems administration for enterprise and mission-critical IT environments.
• Monitor system health, troubleshoot issues, and escalate complex problems.
• Plan and apply security patches and DoD-compliant endpoint security measures.
• Develop and maintain system documentation and SOPs.
• Manage backup, recovery, and disaster recovery procedures.
• Operate and troubleshoot cybersecurity tools (HBSS, ACAS, SIEM).
• Administer Linux-based sensors and hardware (sensor platforms, iDRAC, BluVector).
• Write basic automation/scripts to improve efficiency.
• Support integration across physical, virtualized, and containerized environments.

Skills

Linux

Bash

Python

Security+ CE

Secret clearance

Education

BS Degree

Tools

HBSS

ACAS

SIEM

iDRAC

BluVector

Job description

Foxhole Technology is seeking a Systems Administrator III to provide advanced systems administration and technical support for cyber sensing development within a secure DoD environment. The role focuses on Linux, automation, and security tool administration across DoD networks.

You will implement DoD security requirements (DISA STIGs, RMF, NIST 800-53), manage backups, document procedures, and collaborate with cybersecurity, network, and operations teams to maintain availability and performance