Linux Administrator

Job description

Required Skills & Experience

Linux Administration Strong hands-on experience administering Red Hat Enterprise Linux (RHEL) environments. Experience supporting enterprise-scale Linux infrastructure. Expertise in operating system installation, configuration, patching and maintenance. Strong understanding of Linux services, processes and system administration. System & Infrastructure Management Experience managing multi-environment infrastructure landscapes.

Strong understanding of server administration, resource management and capacity planning. Experience supporting middleware and application hosting environments. Knowledge of high availability and disaster recovery concepts. Security & Compliance Strong understanding of Linux security best practices.

Experience implementing

User access controls Privileged access management Security hardening Firewall configurations Secure system configurations Understanding of enterprise security patterns and operational controls.

Networking Strong knowledge of: TCP/IP networking DNS Routing Network troubleshooting Linux firewall technologies Experience investigating infrastructure and connectivity issues within complex enterprise environments.

DevOps & Automation Experience or familiarity with: CI/CD pipelines Infrastructure automation Configuration management Deployment automation Git-based workflows Exposure to tools such as: Red Hat Ansible Terraform Azure DevOps Jenkins GitHub Actions GitLab CI/CD AEMO's SOI delivery approach references infrastructure automation and DevOps tooling including Red Hat Ansible and Terraform. Troubleshooting & Support Strong problem-solving and diagnostic capabilities.

Experience supporting production environments and critical systems. Ability to perform root-cause analysis and incident resolution. Strong operational support and stakeholder communication skills.

Preferred Experience

Experience supporting integration platforms, middleware or enterprise application environments. Exposure to API gateways, ESBs, messaging platforms and managed file transfer solutions. Experie nce working within Energy, Utilities, Government or other highly regulated sectors. Familiarity with secure and segregated network environments and critical infrastructure platforms. </ul