Job Description
Cybersecurity Specialist
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Join a growing cybersecurity function supporting critical national infrastructure
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Work across Microsoft Defender, Sentinel, Azure Security and threat detection capabilities
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Safely Every Day - That's Our Promise
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Join Pacific National - Australia's largest private rail freight operator
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Every day we transport millions of tonnes of critical freight around the country for our customers. We haul coal, intermodal containers, steel, and bulk commodities that keep Australia moving.
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An opportunity has presented itself for a Cybersecurity Specialist to join our team in North Sydney
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What You'll Do
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Play a key role in strengthening Pacific National's cybersecurity capability by monitoring, detecting, investigating and responding to cyber threats across our Microsoft cloud and security platforms.
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Reporting to the IT Security Lead, you will:
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Investigate and respond to security incidents, alerts and escalations across Microsoft Defender and Microsoft Sentinel environments.
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Perform proactive threat hunting activities to identify malicious activity, emerging threats and security risks.
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Develop, implement and tune security analytics, detection rules and monitoring use cases to improve threat detection capabilities.
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Support vulnerability management activities, including identifying, assessing and tracking remediation of security vulnerabilities.
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Maintain and improve the health, effectiveness and coverage of Microsoft Defender, Sentinel and related security tooling.
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Collaborate with infrastructure,



cloud and technology teams to strengthen security controls and improve security outcomes across the organisation.
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Contribute to incident response playbooks, operational procedures and continuous improvement initiatives across the security function
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What You'll Bring
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Demonstrated experience in Cybersecurity Operations, Cloud Security or Security Engineering roles.
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Hands-on experience with Microsoft Defender, Microsoft Sentinel and Microsoft security technologies.
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Experience investigating security incidents, conducting threat hunting and supporting incident response activities.
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Strong understanding of SIEM, threat detection, security monitoring and vulnerability management principles.
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Experience developing or improving security analytics, detection rules and monitoring use cases.
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Knowledge of Microsoft Azure security principles and cloud security best practice.
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Strong analytical, problem-solving and stakeholder engagement skills, with the ability to communicate effectively across technical and non-technical audiences
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Why join us?
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At Pacific National we value the contribution of each team member. Our values underpin our commitment to create an inclusive culture where everyone is accepted.
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Some of the perks we offer are:
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Paid parental leave
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Novated Leasing
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Fitness Passport
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Purchase leave program
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Access to EAP program through Sonder
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We live by our Values: Make it Simple, Share More, Kindness, Gratitude, Curiosity, and Own It - helping us build strong connections and do our best work every day.
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Learn more at

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Pacific National acknowledges the Traditional Custodians of the land on which we work live and rail.
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📌 Cybersecurity Specialist (New South Wales)
🏢 Pacific National
📍 New South Wales