SIEM Cyber Security Specialist

About the role

Australia Post is looking for a SIEM Cyber Security Specialist to support and enhance its SIEM platform, which underpins Threat Detection and Response across cloud, data centre and operational environments. The role is technical and hands-on, working with Cloud, Network, Identity, Architecture and Security teams to strengthen threat detection and response in large-scale IT and OT environments.

Key responsibilities

• Support and enhance the SIEM platform, ensuring availability, performance and data quality
• Design and build log ingestion and ETL pipelines to onboard data from diverse platforms and applications
• Engineer, tune and maintain detections, correlation rules, alerts and dashboards aligned to threat use cases
• Apply threat intelligence and threat landscape knowledge to detection engineering
• Build automation and improve operational processes across Threat Detection and Response
• Work with internal technology teams to ensure end-to-end detection validity from source to alert

Required profile

• Technically strong cyber security professional with strong experience in SIEM engineering and detection (Microsoft stack)
• Experience in complex, large environments, collaborating across teams and turning security requirements into practical technical solutions
• 4+ years' experience with SIEM technologies (Microsoft technologies)
• Experience designing and building log ingestion and log onboarding, and building data ingestion pipelines, DCRs, ETL, codeless connectors and Syslog
• Strong experience in detection engineering and threat use-case development

Required skills

• Microsoft Azure / Sentinel or industry certifications such as CISSP or GIAC (highly regarded)
• Strong KQL capability (queries, detections, dashboards)
• Knowledge of frameworks such as MITRE ATT&CK and NIST
• Automation with platforms such as SOAR and Logic Apps
• DevSecOps and CI/CD pipelines, Detection-as-Code (ARM / Bicep)
• Scripting (e.g. Python, SQL, PowerShell)

What we offer

• Flexible and hybrid working, including the option to work from home two days per week
• Team member discounts and offers
• Evolving policies for flexible working, leave types and access to health and wellbeing resources