Senior Linux Systems Administrator (L2/L3)

Leidos LLC; North Canberra; On-site; AUD 110,000 - 150,000; Full time

Job summary

Leidos Australia is seeking a Linux Administrator to maintain and enhance the Linux infrastructure that supports critical operations in a highly secure environment. You will provide Level 2 and Level 3 support across enterprise Linux platforms and help optimise system availability, performance and security.

Responsibilities include deploying and maintaining virtualization (VMware/ KVM), managing authentication services, and automating configuration via Ansible, Puppet or Chef while ensuring

Qualifications

• Essential Experience administering enterprise Linux environments, including distributions such as RHEL/CentOS, Ubuntu and SUSE.
• Capability in managing user access, authentication and directory services, including LDAP-based solutions such as OpenLDAP.
• Experience with configuration management and automation tools including Ansible, Puppet or Chef.
• Knowledge of virtualisation technologies, including VMware ESXi/vSphere, KVM or similar platforms.
• Experience providing Level 2 and/or Level 3 support, with the ability to troubleshoot and resolve complex infrastructure issues.
• Experience implementing and maintaining security controls, system hardening practices and operational compliance requirements.
• Capability in scripting and automation using Bash, Python, Perl or similar technologies.

Responsibilities

• Provide Level 2 and Level 3 support across enterprise Linux environments, ensuring availability, performance and reliability of critical systems.
• Develop, automate and standardise system configurations using tools such as Ansible, Puppet and Chef.
• Support security and access management requirements through the administration of authentication services and automation of routine tasks.

Skills

RHEL/CentOS

Ubuntu

SUSE

OpenLDAP

Ansible

Puppet

Chef

VMware ESXi/vSphere

KVM

Bash

Python

Perl

Security controls

Automation scripting

Tools

HP OneView

HPE GreenLake

VMware ESXi/vSphere

Job description

Leidos Australia is seeking a Linux Administrator to maintain and enhance the Linux infrastructure that supports critical operations in a highly secure environment. You will provide Level 2 and Level 3 support across enterprise Linux platforms and help optimise system availability, performance and security.

Responsibilities include deploying and maintaining virtualization (VMware/ KVM), managing authentication services, and automating configuration via Ansible, Puppet or Chef while ensuring