Hybrid Infrastructure Administrator – Linux

at ARMADA Supply Chain Solutions

• Job title: Infrastructure Administrator – Linux
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Ansible, DNS, Linux, Oracle, Python, TCP/IP, VMware
• Location requirements: Hybrid, Pittsburgh, United States

About the role

• Linux Administrator managing corporate infrastructure and Linux systems with opportunities for cloud influence. Maintaining system integrity and security while supporting business continuity in a hybrid environment.

Responsibilities

• Serve as the Linux subject matter expert.
• Administer and optimize RedHat and Oracle Linux systems and virtualization platforms (VMware/Nutanix).
• Ensure systems are configured for high performance and reliability.
• Recommend and implement improvements to infrastructure and configuration based on virtual platform.
• Monitor infrastructure health, respond to alerts, and lead incident investigations.
• Maintain security by tracking vulnerabilities, applying patches, and coordinating with IT Security.
• Support, maintain, patch, and upgrade servers.
• Build new systems following best practices for security and configuration in a consistent manner.
• Analyze performance metrics and troubleshoot backup and server issues.
• Document changes and resolutions for compliance and clear communication.
• Support business continuity, including disaster recovery testing.
• Support infrastructure and application monitoring system.
• Provide off-hours support as needed.
• Perform other duties as assigned.

Requirements

• Bachelor’s degree in computer information systems or related field and/or proven knowledge & skill in required IT platforms & applications
• At least 4 years of IT systems administration, with extensive knowledge of Linux (especially RHEL).
• Minimum 2 years of scripting (shell, Python, PowerShell) and enterprise backup systems.
• Strong problem-solving skills and willingness to learn.
• Experience with RedHat Satellite and Ansible.
• Experience with SELinux for security hardening.
• Experience with networking fundamentals (TCP/IP, DNS, DHCP, VPNs) and security best practices.
• Familiarity with virtualization (VMware, Nutanix, containers).
• Experience with monitoring and alerting tools.
• Ability to respond to security advisories.
• Analytical skills for troubleshooting performance issues.
• Scripting for automation and reporting (Bash, Python, RobotMK).

Benefits

• Paid time off
• Flexible work arrangements