Cortex XSIAM SIEM Expert — Hybrid Sydney

NCS; Melbourne; Hybrid; AUD 120,000 - 160,000; Full time

Job summary

NCS Australia is seeking an experienced SIEM Subject Matter Expert with deep Palo Alto Networks Cortex XSIAM expertise for a Sydney-based project. In this hands-on delivery role, you will take end-to-end ownership of the enterprise SIEM data pipeline—from log source onboarding, parsing, and normalization through to telemetry enrichment, alert fidelity tuning, and platform health management.

We would look at both a contract or permanent person for this role, with hybrid onsite work in Sydney and

Qualifications

• Hands-on Cortex XSIAM with log ingestion and normalization experience.
• Experience developing SIEM data models and enrichment pipelines.
• Ability to automate log source onboarding via scripts or APIs.
• Proficient in regular expressions and structured log analysis.
• Familiarity with log queries (XQL or equivalent) and threat context.

Responsibilities

• Onboard diverse enterprise log sources and model data to SIEM.
• Design and maintain automated onboarding tooling to speed data connection.
• Manage telemetry enrichment and context for analysts within the platform.
• Tune detections and alerting to reduce false positives and improve signal fidelity.
• Oversee platform health, capacity, and ongoing upgrades; ensure SOC readiness.

Skills

Cortex XSIAM

Data modeling

Automation scripting

Regex / JSON parsing

Log analysis

XQL / log query

Tools

Broker VMs

XDR Collectors

Splunk

Job description

NCS Australia is seeking an experienced SIEM Subject Matter Expert with deep Palo Alto Networks Cortex XSIAM expertise for a Sydney-based project. In this hands-on delivery role, you will take end-to-end ownership of the enterprise SIEM data pipeline—from log source onboarding, parsing, and normalization through to telemetry enrichment, alert fidelity tuning, and platform health management.

We would look at both a contract or permanent person for this role, with hybrid onsite work in Sydney and