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).
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