Profectus is seeking multiple experienced Senior ICT Security Engineers to support security engineering and accreditation activities within an Australian Government agency. You will integrate security requirements across the system lifecycle so ICT systems achieve and maintain Authority to Operate (ATO). The work covers security control implementation, accreditation documentation, risk and threat assessments, and engagement with engineering and security teams.
Key Responsibilities
Manage and develop ICT system security activities across complex systems
Lead the application and compliance of security controls and security operations procedures
Develop and maintain accreditation documentation, including Concepts of Operations (CONOPs) and System Security Plans (SSPs)
Achieve and maintain ATO for ICT systems
Conduct security risk assessments, threat assessments and compliance reviews




Work with ICT engineers, architects and security teams to agree controls and secure approvals
Prepare executive briefs and security recommendations for senior management
Communicate technical security matters clearly to technical and non-technical audiences
Contribute to secure system design and operation
Required Experience
Demonstrated experience leading the application and compliance of security controls within complex ICT environments
Proven experience developing ATO or security accreditation documentation, including System Security Plans
Experience conducting security risk assessments, threat assessments and compliance reviews
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📌 Senior Security Engineer (Canberra)
🏢 Profectus
📍 Canberra