Cyber Security Systems Engineer Windows, Linux & Automation

HorizonOne Recruitment; Canberra; On-site; AUD 150,000 - 165,000; Full time

Benefits offered by this job

14% Super

Job summary

HorizonOne Recruitment is seeking a hands‑on cyber infrastructure professional to maintain and harden security platforms underpinning government programs in Canberra. You’ll work across Windows and Linux, security tooling, virtualization, containers and automation to support ISM and Essential Eight ML3 hardening.

You’ll manage day‑to‑day health of security platforms, administer tooling for vulnerability scanning, SIEM, endpoint protection and privileged access, and contribute to investigations

Qualifications

• You’ll have demonstrated experience administering Windows Server and RHEL/Linux environments, ideally within a security‑focused or highly regulated environment.
• Experience with one or more security technologies such as Nessus, Elastic, Trellix, Airlock Digital or Teleport, or comparable platforms, would translate well.
• Defence experience will be well regarded.

Responsibilities

• Administering, patching and upgrading core security platforms
• Building and hardening Windows Server and RHEL systems
• Using one or more security technologies such as Nessus, Elastic, Trellix, Airlock Digital or Teleport, or comparable
• Administering virtualisation and container platforms
• Supporting vulnerability, SIEM and endpoint security tooling
• Managing privileged access and least-privilege controls
• Applying ISM and Essential Eight ML3 hardening
• Automating infrastructure and configuration where possible
• Supporting security investigations and ATO activities

Skills

Windows Server

RHEL/Linux

Vulnerability scanning

SIEM

Endpoint protection

Privileged access mgmt

Automation

Containers

Virtualisation

ISM/Essential Eight ML3

Education

Tools

Nessus

Elastic

Trellix

Airlock Digital

Teleport

Job description

HorizonOne Recruitment is seeking a hands‑on cyber infrastructure professional to maintain and harden security platforms underpinning government programs in Canberra. You’ll work across Windows and Linux, security tooling, virtualization, containers and automation to support ISM and Essential Eight ML3 hardening.

You’ll manage day‑to‑day health of security platforms, administer tooling for vulnerability scanning, SIEM, endpoint protection and privileged access, and contribute to investigations