AG 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 are seeking experienced Systems Engineer to support a major Defence capability modernisation program focused on secure communications, interoperability and capability assurance. Working within a complex stakeholder environment, you will contribute to the planning, coordination, assessment and ongoing management of mission-critical Defence capabilities. This opportunity will suit experienced systems engineering professionals who can combine strong technical expertise with stakeholder engagement, risk management and delivery oversight. We are particularly interested in individuals who enjoy working across capability life cycles, supporting technical governance and helping deliver outcomes that enable operational effectiveness across Defence. Key Responsibilities Identify, manage and coordinate trials required for new or modified capabilities, including risk identification and treatment activities. Plan, conduct and report on assessments of operational effectiveness and operational suitability against agreed baselines. Analyse test and evaluation outcomes to determine whether capabilities meet required certification and performance standards. Provide specialist engineering advice relating to capability testing, evaluation and integration activities. Develop evidence-based recommendations to support capability decisions, milestone reviews and operational readiness activities. Assist with the development and execution of Test and Evaluation Management Plans and associated activities. Support trial safety planning, risk assessments and compliance activities. Coordinate test and evaluation activities across multiple stakeholder groups to achieve integrated capability outcomes. Support capability acceptance activities, defect management processes and technical risk mitigation. Provide advice to project and program stakeholders on testing methodologies, planning, scheduling, execution and reporting. About You Demonstrated experience as a Systems Engineer within complex Defence, aerospace, communications, cyber, C4ISR or technology environments. Strong understanding of systems engineering principles, capability lifecycle management and technical governance. Experience supporting testing, evaluation, verification and validation activities for complex systems. Ability to analyse technical data and translate findings into practical recommendations and decision-support material. Experience developing technical documentation, plans, reports, engineering artefacts and governance products. Strong stakeholder engagement skills with the ability to build relationships across technical, operational and executive audiences. Experience coordinating activities across multiple projects, teams and external organisations. Defence Experience in a similar role Additional Information Commencement: August 2026. Location: ACT. Flexible working arrangements may be available subject to operational requirements. Security Clearance: Candidates must hold a current NV1 Security Clearance . Australian Citizenship is required. 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 great 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. REF: TD 007
