Linux Administrator

United States

Philadelphia, Pennsylvania, United States

Python

Description

The Linux Administrator provides administration, security hardening, maintenance, and operational support for Linux-based systems within a Department of Defense (DoD) environment. The position is responsible for maintaining secure, reliable, and compliant Linux infrastructure while supporting day-to-day operations, vulnerability remediation, system patching, and DoD cybersecurity requirements

Responsibilities: ·

Install, configure, administer, and maintain Linux servers, including Red Hat, Ubuntu, and CentOS environments. ·

Secure Linux systems in accordance with DoD cybersecurity requirements, security policies, and industry best practices. ·

Apply, validate, and remediate applicable DISA Security Technical Implementation Guides (STIGs). ·

Perform operating system and security patching, system updates, and vulnerability remediation. ·

Review vulnerability scan results, investigate findings, and implement corrective actions to maintain system compliance. ·

Monitor system performance, availability, capacity, and security using appropriate monitoring and management tools. ·

Troubleshoot and resolve operating system, application, configuration, performance, and connectivity issues. ·

Manage user accounts, groups, permissions, privileged access, and access controls. ·

Configure and maintain Linux-hosted services, including web servers, databases, file systems, and related infrastructure services. ·

Implement and maintain backup, recovery, and disaster recovery capabilities. ·

Automate routine system administration and maintenance activities using scripting languages such as Bash, Perl, and Python. ·

Support application and infrastructure deployments and collaborate with DevOps, engineering, cybersecurity, and development teams. ·

Maintain system documentation, configuration records, standard operating procedures, and technical documentation. ·

Support configuration management, audit logging, security monitoring, and other controls required to maintain secure DoD computing environments. ·

Ensure systems remain compliant with applicable DoD security policies, technical standards, and approved configuration baselines. .

Knowledge of and experience with installation, configuration, and integration, backups, troubleshooting, and problem resolution for servers associated with an Active Directory domain, such as DHCP and DNS

Requirements

Target Requirements: ·

Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, Engineering, or a related technical discipline. ·

Six (6) years of relevant professional experience administering and supporting Linux systems. ·

Demonstrated experience securing and hardening Linux systems. ·

Experience applying and validating DISA STIGs and remediating associated findings. ·

Experience with Linux operating system patching, vulnerability remediation, and configuration management. ·

Working knowledge of Linux system administration, access controls, system monitoring, backup/recovery, and troubleshooting. ·

Experience with automation and scripting using Bash, Perl, and Python, or similar technologies.

Languages

Linux Administrator

Description

Responsibilities: ·

Requirements

Target Requirements: ·

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