Cyber Security Specialist

About the role

As a SIEM Cyber Security Specialist you will support and enhance Australia Post’s SIEM platform that underpins threat detection and response across cloud, data‑centre and operational environments. You will work within a collaborative, technically strong team and help protect the nation’s postal services.

Key responsibilities

• Maintain and improve the SIEM platform ensuring availability, performance and data quality.
• Design and build log ingestion and ETL pipelines to onboard data from diverse sources.
• Engineer, tune and maintain detections, correlation rules, alerts and dashboards aligned to threat use cases.
• Apply threat intelligence and knowledge of the threat landscape to detection engineering.
• Automate and streamline operational processes across Threat Detection & Response.

Required profile

• 4+ years experience working with SIEM technologies, preferably Microsoft Azure Sentinel.
• Experience in large, complex environments and collaboration across Cloud, Network, Identity and Architecture teams.
• Relevant certifications such as CISSP or GIAC are highly regarded.

Required skills

• Microsoft Azure Sentinel / SIEM engineering.
• Kusto Query Language (KQL) for queries, detections and dashboards.
• Log ingestion, ETL pipelines, DCRs, Syslog connectors.
• Threat frameworks: MITRE ATT&CK, NIST.
• Automation platforms: SOAR, Azure Logic Apps.
• Infrastructure as code: ARM, Bicep.
• Scripting: Python, PowerShell, SQL.

What we offer

• Enterprise‑scale impact across IT and OT environments.
• Participation in multi‑year cyber security transformation programmes.
• Career growth and skill development opportunities.
• Hybrid working arrangement with up to two days per week remote.
• Team member discounts, health and wellbeing resources and an inclusive culture.