The Opportunity Eligibility: Applicants must be Australian citizens and be eligible to obtain and maintain an active Australian Government Defence security clearance at the level required for the position.
Join the AIR**** program and help shape the architecture of one of Australia's most advanced Defence capabilities.
As a Lead Systems Architect , you will provide technical leadership across a complex, integrated System-of-Systems workplace that connects sensors, command and control systems, battle management capabilities and effectors across multiple domains.
Working alongside Systems Engineering teams, Defence stakeholders, industry partners and subject matter experts, you will be responsible for defining, maintaining and evolving the architectural baseline of the AIR**** solution, helping shape the future of Australia's Integrated Air and Missile Defence capability.
AIR**** is the RAAF's $3 billion program to develop a Joint Air Battle Management System (JABMS), creating a fully networked system-of-systems that synchronises air and missile defence operations across joint and coalition environments.
Interstate candidates are encouraged to apply.
Relocation assistance may be considered for exceptional candidates.
You may currently be a: Systems Architect Principal Systems Engineer Systems Engineering Manager Systems Engineering Lead Technical Authority Design Authority MBSE Lead Lead Systems Engineer with experience across complex Defence, Mission Systems, Combat Systems, Defence Integration or System-of-Systems programs.
Key Responsibilities The Lead Systems Architect's primary responsibilities include: Lead requirements analysis, functional analysis and architectural development activities across the AIR**** System-of-Systems.
Develop and maintain functional, allocated and product baselines using MBSE principles, tools and frameworks.




Provide architectural oversight for system interfaces, requirements traceability, Technical Performance Measures (TPMs) and derived engineering artefacts.
Lead trade studies, technical assessments and risk management activities to support informed design decisions.
Define product-level specifications, Statements of Work and architectural design patterns to support supplier engagement and delivery.
Collaborate with engineering teams, Technical Authorities, Defence stakeholders, SMEs and industry partners to support architecture reviews, integration activities and program outcomes.
Support architecture governance, technical decision-making and solution evolution across the program lifecycle.
What you'll bring To be successful in this role you will have: Extensive experience across the full systems engineering lifecycle, including requirements analysis, architecture development, integration, verification and support of complex Defence or System-of-Systems programs.
Strong expertise in Model-Based Systems Engineering (MBSE), including development and interpretation of SysML models, architectural viewpoints, requirements traceability and digital engineering artefacts.
Experience working within Mission Systems, Combat Systems, Defence Integration, Electronic Warfare, C4ISR, Battle Management Systems or similar Defence capability environments.
Experience using contemporary requirements management, architecture and digital engineering tools.
Strong analytical and technical leadership capability, with experience leading trade studies, technical assessments and architectural decision-making.
Excellent stakeholder engagement and communication skills, with the ability to influence outcomes across multidisciplinary engineering teams.
Eligibility for, or ability to obtain, an Australian NV1 Security Clearance.
Highly Regarded Integrated Air and Missile Defence (IAMD) Integrated Fire Control Networks (IFCN) Distributed Command

📌 Lead Systems Architect (Melbourne)
🏢 Lockheed Martin
📍 Melbourne