About the Role
Core Defence Australia (CDA) is seeking an experienced Cyber Assurance Specialist to support cybersecurity and information assurance activities within Australia's Defence environment. Based in either Melbourne or Canberra, this role requires a technically capable cybersecurity professional with a strong understanding of ICT infrastructure, security frameworks and technical security controls. The successful candidate will work across complex ICT environments, supporting security assurance, risk identification, technical assessments and the implementation of cybersecurity controls.

Key Responsibilities
• Conduct cybersecurity assurance activities across Defence ICT systems and environments.
• Assess the implementation and effectiveness of technical security controls.
• Apply the Australian Government Information Security Manual (ISM), Essential Eight and relevant NIST frameworks.
• Review ICT infrastructure, networks, operating systems and cloud environments to identify security risks.
• Support the assessment, management and remediation of cybersecurity vulnerabilities.
• Contribute to security documentation, technical assessments and assurance reporting.
• Work collaboratively with technical teams and stakeholders to support secure ICT outcomes. About YouWe are seeking candidates with:
• A current, active Australian Government security clearance (mandatory).
• A degree in Computer Science, Systems Engineering, Information Technology or a related discipline, or equivalent practical experience.
• Demonstrated experience in cybersecurity, ICT assurance or technical security roles.
• Strong understanding of the ISM, Essential Eight and NIST frameworks.




• Practical experience with ICT systems administration, networking and technical security controls.
• Knowledge of Windows Server, Linux and other enterprise operating systems.
• Experience with virtualisation technologies such as VMware or Hyper-V.
• Understanding of networking technologies including TCP/IP, DNS, DHCP and VPNs.
• Familiarity with cloud environments such as AWS, Azure or Google Cloud.
• Experience with firewalls, endpoint protection, intrusion detection and other security technologies.
• Strong analytical, communication and stakeholder engagement skills. Qualifications and CertificationsProfessional certifications such as CISSP, CISM, CISA or equivalent are highly regarded. The successful candidate must be able to obtain Defence Cyber and Information Assurance Branch (DCIAB) certification. Existing certification is advantageous but not essential. Why Join Core Defence Australia?CDA is an Australian-owned private company supporting Defence and Federal Government outcomes through trusted people and practical delivery. We value technical expertise, professional integrity and genuine relationships with our people. When you join CDA, you become part of a team committed to supporting your qualified contribution and connecting your expertise with meaningful Defence outcomes. Trusted people. Practical delivery. Results that matter. Apply NowIf you have the technical expertise, an active Australian Government security clearance and the experience to contribute to Defence cybersecurity assurance, we encourage you to apply.
• Submit your application through LinkedIn or email your CV to [email protected].

📌 Cyber Assurance Specialist (Canberra)
🏢 Core Defence Australia
📍 Canberra