Senior Security Analyst — MSSP SIEM Lead & Threat Hunter

Accenture PLC; Perth; On-site; AUD 120,000 - 180,000; Full time

Benefits offered by this job

Parental leave

Career breaks

Career development

Local and international opportunities

Family inclusive workplace

Flexible work arrangements

Diversity & Inclusion recognition

Job summary

Accenture is seeking a Senior Security Analyst to join CyberCX's Managed Security Services team in Australia. You will lead security investigations, tune detections, and mentor junior analysts across enterprise environments, cloud, identity and endpoints.

You’ll work hands-on with SIEMs like Microsoft Sentinel and Splunk, perform threat hunting, and coordinate incident response with customers. This role requires independent decision-making, strong communication to senior stakeholders and the

Qualifications

• Experience in SOC/MSSP/MDR environments.
• Lead or handle security investigations.
• Hands-on with SIEM platforms (e.g., Microsoft Sentinel, Splunk).
• Experience with EDR/XDR platforms (Defender, CrowdStrike, Cortex XDR).
• Strong understanding of identity and cloud security (Azure/Entra ID).
• Exposure to Microsoft Azure/Entra ID or broader cloud security.
• Incident response, containment and escalation knowledge.
• Experience analysing logs across multiple sources.
• Experience with detection tuning and alert optimization.
• Threat hunting using intelligence, TTPs, indicators.
• Familiarity with attacker frameworks like MITRE ATT&CK.
• Ability to translate findings into customer outcomes.
• Strong judgement to advise in high-pressure situations.
• Clear communication of technical findings to stakeholders.
• Mentoring or supporting less experienced analysts.

Responsibilities

• Lead security investigations across enterprise environments.
• Analyse events with SIEMs like Microsoft Sentinel and Splunk.
• Investigate activity across identity, cloud, endpoint and network telemetry.
• Support incident response including scoping, containment and escalation.
• Serve as senior escalation point for complex incidents and investigations.
• Tune detections to reduce false positives and improve quality.
• Develop new customer-specific detections and use cases.
• Lead threat hunting activities driven by threat intel and customer concerns.
• Identify gaps in logging/detections and recommend improvements.
• Support vulnerability management and prioritisation.
• Translate technical findings into customer security outcomes.
• Contribute to automation and tooling improvements.
• Mentor junior analysts to improve investigation quality.
• Collaborate with CyberCX teams and broader capabilities.
• Participate in rotating after-hours on-call roster.

Skills

SOC/MSSP/MDR experience

Security investigations lead

SIEM platforms

EDR/XDR platforms

Identity & cloud security

Azure/Entra ID

Incident response

Log correlation

Detection tuning

Threat hunting

MITRE ATT&CK

customer/security outcomes

Communication to stakeholders

Mentoring analysts

Tools

Microsoft Sentinel

Splunk

Microsoft Defender

CrowdStrike

Cortex XDR

Job description

Accenture is seeking a Senior Security Analyst to join CyberCX's Managed Security Services team in Australia. You will lead security investigations, tune detections, and mentor junior analysts across enterprise environments, cloud, identity and endpoints.

You’ll work hands-on with SIEMs like Microsoft Sentinel and Splunk, perform threat hunting, and coordinate incident response with customers. This role requires independent decision-making, strong communication to senior stakeholders and the