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About the Role

Optus is seeking a Senior Insider Threat Analyst to enhance security by identifying, investigating, and mitigating insider risks. This role is crucial in protecting the company's people, data, and intellectual property against evolving cyber threats.

Responsibilities

• Operate and enhance insider risk detection capabilities using UEBA, DLP, CASB, EDR, SIEM, User Activity Monitoring, and cloud telemetry.
• Develop and maintain analytics, detection rules, investigative playbooks, and monitoring models.
• Lead and support insider threat investigations, including evidence collection, timeline reconstruction, case management, reporting, and stakeholder engagement.
• Correlate technical indicators with business and people-related risk signals.
• Triage and assess insider risk alerts, determine severity, intent, business impact, and recommend actions.
• Produce investigation reports and executive briefings for legal, audit, compliance, and leadership.
• Coordinate technical and administrative containment activities.
• Drive proactive risk reduction through awareness initiatives, policy reviews, and control recommendations.
• Contribute to insider threat governance forums, metrics reporting, threat intelligence, and program improvement.
• Stay current on emerging insider threat techniques, data exfiltration methods, cloud security risks, and best practices.

Requirements

• 3+ years of experience in insider threat, cyber security operations, threat hunting, investigations, fraud intelligence, digital forensics, law enforcement, or a related discipline.
• Experience leading or supporting complex investigations involving sensitive information and multiple stakeholders.
• Strong knowledge of security monitoring and detection platforms (e.g., Microsoft Sentinel, Splunk, CrowdStrike, Defender for Endpoint, DLP, CASB, UEBA).
• Proficiency in security analytics and query languages (e.g., KQL, SPL, SQL).
• Understanding of data exfiltration techniques, insider threat tactics, and behavioural risk indicators.
• Knowledge of evidence handling, chain of custody processes, and creating defensible investigation documentation.
• Strong stakeholder management skills and ability to collaborate effectively across Security, HR, Legal, Privacy, and Compliance.
• Excellent written and verbal communication skills.
• High levels of integrity, discretion, sound judgment, and professionalism.

Skills

• UEBA
• DLP
• CASB
• EDR
• SIEM
• User Activity Monitoring
• Cloud telemetry
• KQL
• SPL
• SQL
• Microsoft Sentinel
• Splunk
• CrowdStrike
• Defender for Endpoint
• PowerShell
• Python

Location

• Hybrid

Work Type

• Hybrid
• Full-time

Experience Level

• Senior

Education Level

• Industry certifications such as Security+, CySA+, GCIH, GCFA, GCFE, CISM, CIPM, or Certified Cybersecurity (CC) are a plus.
• Knowledge of regulatory and compliance frameworks such as ISO 27001, NIST, SOX, PCI DSS, or privacy legislation is a plus.

Salary/Compensations

• Competitive remuneration

Benefits

• Employee discounts
• $80 monthly credit
• 25% off Optus products
• Unique shopping discounts with retail partners
• Flexible working arrangements
• Competitive leave policies
• Additional Connected Days
• Inclusive, carer-neutral paid parental leave of up to 16 weeks
• Ongoing learning and development opportunities
• Employee-led inclusion networks
• Diversity initiatives
• Access to confidential wellbeing and support services available 24/7

About the Company

• Optus is a leading Telecommunications company known for delivering innovative solutions, disrupting the industry, and evolving as a technology company with a diverse range of products and services.

Equal Opportunity

• Optus is strengthened by others and that means valuing diversity and saying "yes" to embracing individual differences.
• We are committed to ensuring our application process provides equal employment opportunities to all job seekers, including individuals from diverse gender, cultural and linguistic backgrounds, people with disability, LGBTQIA+ individuals, veterans, and Aboriginal and Torres Strait Islander peoples.
• If you require adjustments or accessibility support during the recruitment process, please let us know.
• For more information on Diversity, Inclusion & Belonging at Optus, please visit: https://www.optus.com.au/about/inclusion-diversity.