Melbourne Based (Remote Work Available from an Approved Defence Site) | Requires a current AGSVA NV1 Clearance

About Us

IAG Defence & National Security (DNS) is part of IAG, a specialist advisory firm supporting complex infrastructure, Defence and national security programs across Australia. Our DNS team works closely with Commonwealth agencies and industry partners to deliver specialist expertise into nationally significant programs. Our success depends on our ability to identify, engage and mobilise highly specialised talent quickly and effectively.

IAG is recognised as a Veteran Friendly Employer under the Veteran Employment Program.

The Role

We're looking for an experienced Cyber Security Engineer to lead security accreditation, assurance and compliance activities within a small, focused team supporting a Defence battle management capability in Melbourne. This is a great opportunity for a security professional to provide oversight and guidance across a capability's full lifecycle.

You'll work closely with engineering, software development and sustainment personnel, assessing security risks and supporting accreditation decisions, while providing security advice that keeps technical activities aligned with Defence requirements.

Key Responsibilities

- Lead and coordinate security accreditation activities for capability systems
- Develop, maintain and update security accreditation artefacts and supporting documentation
- Conduct security risk assessments and ensure risks are documented, treated and managed
- Support maintenance of Authority to Operate (ATO) and ongoing security assurance requirements
- Apply frameworks including ISM, Essential Eight, DISP, ISO 27001 and NIST,



and engage security authorities to support accreditation outcomes

Required

- Current NV1 security clearance
- Experience in security accreditation, system authorisation or security assurance within Defence or Government
- Cyber security risk assessment experience, with working knowledge of the ISM
- Experience producing accreditation documentation and security reports
- Strong stakeholder engagement and communication skills, with an understanding of systems engineering and SDLC principles

What We Offer

With offices in Perth, Brisbane, Melbourne, Sydney and Canberra, we're a tight-knit team working across some of Australia's most critical Defence and national security programs. We value expertise, collaboration and flexibility, providing our people with opportunities to contribute to meaningful and technically challenging projects.

We can offer great work, great people, great culture, great conditions, and an all-round excellent time whilst you continue building a rewarding career in the Defence and national security sector. As part of IAG, you'll be joining a team of more than 250 professionals.

Most opportunities advertised by IAG Defence & National Security are subject to client approval, security validation and contractual confirmation. Employment or engagement will only be offered following successful client acceptance and completion of all required pre-engagement checks and onboarding activities.

Please note: as this role may support a Defence program, a Defence employment moratorium period may apply to current or recently separated ADF/APS personnel seeking to move into industry roles. If you are currently serving or have recently left Defence, we'd recommend confirming your eligibility to apply before submitting.

📌 Cyber Security Engineer (Melbourne)
🏢 IAG Defence and National Security
📍 Melbourne