Job Description
Adelaide, Australia | Posted on 18/08/2026
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A PLUS Agency is working withOperational Systems Pty Ltd (OPSYS) to recruit for an Experienced Cyber Security Analyst.
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About OPSYS:
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Operational Systems Pty Ltd (OPSYS) is an Australian-owned, enterprise-level managed
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IT and cyber security service provider headquartered in Adelaide, South Australia. Born from a commitment to protecting sovereign assets, OPSYS provides round-the-clock security coverage and managed IT services to organisations ranging from growing businesses to critical infrastructure, government, and global enterprises. Driven by a philosophy of being "Secure by Design", our team combines deep technical expertise with advanced detection platforms and a local Security Operations Centre (SOC) to deliver rapid incident response, threat hunting, and managed security solutions.
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About the Role
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We are seeking a dedicated Cyber Security Analyst to join our Adelaide-based Security
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Operations Centre (SOC). In this critical operational role, you will be responsible for first-line alert review and triage within the SOC, assessing incoming security events for validity, severity, and potential customer impact.
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Working with Senior Analysts and Cyber Security Lead, you will perform initial investigations, gather log data and context, and ensure complex incidents are escalated efficiently. This role plays a key part in maintaining high service quality, supporting ongoing detection tuning, and protecting our customes' digital environments.
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Key Responsibilities
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Alert Triage & Initial Investigation: Perform first-line triage of security alerts within the SIEM platform. Conduct initial log analysis, enrich alerts, identify false positives, and document rationale for alert closure.
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Escalation & Handover: Escalate confirmed or complex incidents to Senior Analysts with transparent, complete,



and well-structured context and documentation in line with SLAs and SOC procedures.
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Log Review & Correlation: Review and correlate logs across multiple sources to assist in establishing incident context and verification across diverse customer environments.
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Microsoft 365 Alert Handling: Perform initial review and triage of M365 security alerts (email-borne threats, suspicious authentication, account alerts).
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Documentation & Process Adherence: Maintain accurate records of triage and investigation activity in ticketing systems while strictly following SOC playbooks and customer-specific procedures.
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Continuous Growth: Participate in structured learning and development activities, shadowing Senior Analysts on complex investigations to expand your technical depth.
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Requirements
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Qualifications (Required): Tertiary Study, Vocational Training, or Industry Certification in Cyber Security, Information Technology, or a related discipline.
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Technical Knowledge: Sound understanding of core cyber security principles, threat landscapes, network security, and Operating Systems (Windows/Linux).
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Hands-on Exposure: Prior experience or familiarity with SIEM platforms, log analysis tools, and Microsoft 365 Security environments.
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Analytical Mindset: Strong problem-solving ability with high attention to detail when investigating logs and anomalous activity.
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Communication: Excellent written and verbal communication skills for clear incident documentation and handovers.
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Team Player: Ability to work collaboratively within a team environment while adhering to customer SLAs and internal operational standards.
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Genuine Career Growth: We are committed to supporting our team members & professional development with clear progression opportunities within our growing SOC capability pathway.
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Hands-On Experience: Work across diverse customer environments and technologies using modern detection platforms.
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Supportive Environment: Learn directly from experienced Senior Cyber Security Analysts and Leads.
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📌 Cyber Security Analyst (South Australia)
🏢 Aplus Agency
📍 South Australia