Build your career and Australia's future
Not many people can say they are working on building Australia's future. With us you'll be doing just that, leaving a legacy for all Australians. Plus, there's equal employment, great training, and true flexible working arrangements.
A bit about your role
The Executive Manager, Security Design leads the engineering of advanced, next-generation, AI-centric offensive and defensive cyber security capabilities for the enterprise. As a senior leader within Enterprise Security Enablement (ESE), you will establish and lead the Security Group's technical Centre of Excellence (CoE) for security engineering.
The CoE is responsible for designing and engineering cyber security capabilities capable of autonomous attack simulation and defence at scale, detecting and preventing emerging threats in near real time. The role works in close partnership across the enterprise, including Security Architecture, Operations, and Offensive Security, to ensure defensive engineering outcomes are aligned to reference architectures, adversary-informed testing and operational effectiveness.
A bit about you
We are seeking a senior cyber security engineering leader with deep expertise in offensive-informed defence and AI-driven security design, operating effectively in complex enterprise environments
The successful candidate will bring comprehensive technical depth across AI/ML, Secure Coding, offensive security testing and modern cyber defence engineering. Strong knowledge of relevant standards and regulatory obligations, including ASD ISM, PSPF, Essential Eight, SOCI, TSSR, NIST CSF and NIST SP 800-53, supported by recognised industry certifications.
This role requires advanced communication, influencing, planning, and organisational skills, with the capability to operate confidently in complex enterprise environments.
The ideal candidate will be recognised for combining deep technical authority with strategic insight, building high-performing engineering teams and driving innovation across diverse security domains.
Candidates must hold, or be eligible to obtain, an Australian Government security clearance (minimum NV1).
Life at nbn
To be part of nbn is to be part of something bigger. There's so much more from here. Our pioneering spirit drives us forward every day. Together, we help lift the digital capability of the nation by building and connecting Australia's best fibre infrastructure into homes and businesses, plus places and things, everywhere. We're continuing to create Australia's network—a network made for more. Not just a way for everyone to do the things they love but transforming the way they do them.
A more inclusive working world
nbn is committed to an inclusive, flexible, and supportive workplace where everyone can feel heard, valued, and respected. We believe diverse perspectives are the key to unlocking greater outcomes and encourage applications from people of all ages, nationalities, abilities, and cultures. That's why we have a Reconciliation Action Plan, Accessibility & Inclusion Plan, offer 18 weeks of paid parental leave, are a Pride in Diversity Platinum Employer, and have active employee-led diversity pillars. Click here to see our list of employee benefits and why we're recognised as a WORK180 Endorsed Employer for Women, and their Employer of Choice for 2025.
Equal Opportunities for All
We champion equal opportunities for all employees. If you have any accessibility requirements and would like to discuss adjustments for the recruitment process, please don't hesitate to contact us by emailing or calling our Recruitment Accessibility Enquiry Line at Please note, this line is dedicated to accessibility-related enquiries for the purposes of recruitment, and only enquiries related to accessibility adjustments will be answered. For other matters, please visit our Contact Us page on our website.
Where to from here?
If you think this role might be for you, we want to hear from you. Please apply by following the links and sending in your resume only. We do not require a cover letter or any selection criteria to be addressed.
Please note that this role is a permanent opportunity and applications will close at midnight Sunday 1st March 2026.
To be eligible for this role, you must have full working rights in Australia.