Amentum is continually expanding our opportunities working on prominent defence projects across air, land and sea supporting the critical capabilities that keep Australia safe. We have a growing presence in cyber, space and nuclear programs. Our Team: The Air Combat Systems Program Office (ACSPO) manages the acquisition and sustainment of Australia’s F‑35A Lightning II capability. It provides Asset, Project, Financial, Engineering, and Business Management Support for F‑35 sustainment and associated AIR06000 project phases. About the Role: The Deputy Cyber Manager provides specialist Cyber and ICT systems security expertise to ACSPO, supporting complex and sensitive capability environments, including up to and including Special Access Programs (SAP). The position works closely with internal and external stakeholders across Defence, providing authoritative advice on cyber readiness, system security, assurance, and accreditation. The successful candidate will liaise with stakeholders at all levels, build strong working relationships, and act as a key point of contact for operational security enquiries. This full-time position is based at Williamtown, near Newcastle. What’s Involved: Act as a key point of contact for operational ICT and cyber security enquiries, engaging with stakeholders at all levels across Defence and industry. Deliver system security services, including Cyber readiness verification, assurance, and authorisation support for ACSPO ICT systems. Provide Subject Matter Expert (SME) advice on Cyber and information security, including technical, policy, and governance matters, to internal and external stakeholders. Plan, conduct and document ICT system certification and accreditation activities, including systems up to and including Special Access Programs (SAP), in accordance with ASIG and the Risk Management Framework (RMF). Develop Assessment and Authorisation (A&A) artifacts to Defence writing standards and providing risk‑based recommendations to authorising bodies. Identify, manage, and validate ICT system security requirements through security planning, design, implementation, and verification and validation (V&V). Support capability and concept development in technical security, ensuring compliance with Defence security policy, governance, and assurance frameworks. Produce high‑quality security documentation and providing expert cyber security advice to support operational outcomes and resolve system security issues. Who we’re Looking For: You are a Cyber and ICT Security professional who is comfortable working in complex, highly regulated environments. You can engage confidently with technical specialists, project teams, and senior stakeholders, and you bring a practical, risk based approach to security assurance and accreditation. You enjoy working collaboratively within small teams while contributing expertise across a wider organisational context. You’ll Need: Demonstrated experience in ICT and cyber security accreditation aligned with organisational policy and governance frameworks. Experience providing security assurance, certification, and accreditation advice for ICT systems, including high‑security environments. Strong verbal and written communication skills, including the ability to interpret and provide advice on policy, procedures, and governance requirements. Proven ability to work collaboratively across a broad, complex organisational environment while delivering specialist cyber security services. Negative Vetting Level 2 (NV2) Security Clearance (mandatory). What’s in it for me? Flexibility - We like our employees to have the flexibility they need to live the lives they choose. With flexible working options such as WFH where possible. Inclusion - Our employees should feel safe bringing their whole self to work, we offer a number of programs promoting inclusion. Benefits and Rewards – Our benefits and rewards includes additional superannuation; flexible leave options; salary continuation insurance; professional certification bonus; employee discount program. Amentum: Trusted Partner in National Security Amentum is a key service provider to the Australian Government, supporting critical national security and Defence capabilities across land, air, maritime, cyber, space, nuclear, and digital domains. With over 880 professionals nationwide, we deliver complex infrastructure, logistics, and technical solutions with a strong focus on quality, safety, and innovation. With 27 years of experience and a presence in major cities and regions, we’re proud of our people—our greatest asset. Join us and be part of a high-performing team with exceptional benefits and career opportunities. Apply directly or reach out to Jeremy Parkinson, jeremy.parkinson@global.amentum.com .
