Mission-Critical Linux Systems Administrator

Bridge Defense; San Diego (CA); On-site; USD 140,000 - 155,000; Full time

Job summary

Bridge Defense seeks a Linux Systems Administrator to support the N6 IT Fleet Weather Center San Diego. The role focuses on system administration, security controls, and compliance for METOC-focused environments in both classified and unclassified networks.

Required DoD and CSWF certifications, strong Linux skills, and experience with RHEL, patching, auditing, and vulnerability remediation help protect critical Navy missions. This onsite position in San Diego offers secure, mission-focused work.

Qualifications

• Strong knowledge of Linux system administration and cybersecurity best practices.

Responsibilities

• Administer, maintain, and support Linux-based operating systems, web servers, databases, and enterprise applications.
• Install, patch, configure, and maintain Red Hat Enterprise Linux (RHEL) systems.
• Maintain operational readiness of hardware, software, and networked information systems.
• Provide desktop and server support for users operating on classified and unclassified networks.
• Develop, test, document, implement, and maintain PHP scripts and automated web-based data distribution solutions.
• Perform system monitoring, log analysis, troubleshooting, and performance optimization.
• Implement and maintain cybersecurity controls in accordance with DoD and Department of the Navy requirements.
• Support vulnerability management, remediation efforts, security testing, and compliance reporting activities.
• Assist with information assurance assessments and security control implementation.
• Support change management activities, system upgrades, and infrastructure modernization initiatives.
• Maintain system documentation, configuration baselines, turnover documentation, and standard operating procedures.
• Support ISSMs/ISSEs with cybersecurity compliance activities.
• Review audit logs and security events to identify risks.
• Assist with PKI implementation and management.
• Research and apply DoD/DoN cybersecurity policies and guidance.
• Provide technical recommendations to improve security and availability.
• Support FW CSD and mission partners as required.

Skills

Linux system administration

Cybersecurity

CSWF certification

DoD 8570/8140 IAT II

Security+ CE

Education

Bachelor's degree in IT/CS/C Cybersecurity/Engineering

Tools

Red Hat Enterprise Linux

Scripting

Job description

Bridge Defense seeks a Linux Systems Administrator to support the N6 IT Fleet Weather Center San Diego. The role focuses on system administration, security controls, and compliance for METOC-focused environments in both classified and unclassified networks.

Required DoD and CSWF certifications, strong Linux skills, and experience with RHEL, patching, auditing, and vulnerability remediation help protect critical Navy missions. This onsite position in San Diego offers secure, mission-focused work.