Infrastructure Administrator - Linux (Hybrid)

Armada•Pittsburgh, PA

7d•Hybrid

About The Position

Armada seeks highly motivated employees who are ready to make a difference. The Linux Administrator position is significantly involved in all corporate infrastructure and has the opportunity to provide an impact to the team immediately. This position is responsible for designing, updating, securing, and supporting Linux systems and additional infrastructure foundational technology. This position also will have the opportunity to exert influence on the burgeoning cloud presence. With a lean team, Armada puts a priority on developing procedures to ensure stability and automate routine tasks.

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.

Nice To Haves

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).
History of supporting systems hosting database technologies.
Effective communication with technical and business stakeholders.

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.