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. Tell me about this role We are seeking an NV1 or NV2 cleared Software Engineer/Network Technician to deliver integrated ICT support within a Defence operational environment. This role focuses on the sustainment, governance, assurance, and capability integration of Defence operational ICT systems supporting mission capability, including Tactical Data Links and core mission systems. You will support both operational and project-based activities, ensuring ICT systems remain compliant, interoperable, and mission-ready. Working closely with Defence stakeholders, program offices, and industry partners, you will play a key role in delivering and sustaining critical capability across the lifecycle, including Prove, Test and Evaluate (PT&E) phases. What will I be doing day to day? Act as a key point of contact for operational ICT support, engaging with Defence stakeholders, NETTECHs, CCT personnel, and industry partners Deliver ICT training and mentorship to support workforce capability development Provide operational support and sustainment for mission-critical ICT systems, ensuring system availability and performance Support governance, policy, and compliance activities aligned with CASG BMS and Defence requirements Manage sustainment and PT&E activities for operational and trial ICT capabilities in collaboration with relevant SPOs Coordinate vendor support and sustainment arrangements, ensuring compliance with contractual obligations Manage fleet training, sustainment planning, and capability delivery for program-level ICT systems Maintain control of cryptographic material and coordinate technical maintenance activities Ensure system conformance, ATO, and compliance with MIL-STD and accreditation frameworks for ICT systems Conduct Verification and Validation (V&V) and support system integration and interoperability activities Coordinate defect management (RODUM) and develop user requirements to address capability gaps and enhancements What sort of skills do I need? Experienced ICT professional with Network Technician and/or Software Engineering expertise, operating effectively in complex Defence environments Tertiary qualifications in Engineering, Computer Science, Information Technology, or related discipline, or equivalent industry experience Strong knowledge of ICT sustainment, system assurance, governance, and life-cycle management, including accreditation and compliance frameworks Demonstrated experience in V&V, system compliance (e.g., MIL-STD), and Authorities to Operate (ATO) Experience supporting ICT sustainment, PT&E, system integration, and capability enhancement activities Sound understanding of Defence governance and procurement frameworks (e.g., CASG BMS, ERP, NDS) Experience working with secure ICT systems and managing cryptographic materials 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 include 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 Symmone Chapman, symmone.chapman@global.amentum.com