About the role  

A Senior Systems Engineer is responsible for leading systems engineering activities across the full system lifecycle for complex Defence capability projects. The role ensures technical solutions are coherent, verifiable, compliant, and aligned to customer and operational requirements. This is achieved through participation in all phases of the systems engineering lifecycle including requirements management, architecture development, design, implementation, integration, verification & validation, risk and change management. 

What the role will involve 

The responsibilities of your role will include the following: 

• Lead requirements analysis, decomposition, allocation, traceability, verification planning, and compliance management 

• Establish and maintain the system technical baseline, including requirements, architecture, interfaces, design decisions, assumptions, risks, and verification evidence 

• Develop, review, and maintain key systems engineering artefacts, including specifications, architecture & descriptions, interface control documents, verification artefacts, trade studies, technical reports, and systems engineering plans 

• Lead system architecture and interface management activities to ensure the solution is technically coherent, feasible, secure, supportable, and aligned with operational needs 

• Support engineering decisions through structured trade studies, technical analysis, option assessment, and evidence-based recommendations 

• Contribute to systems engineering estimates, schedules, scope definition, resource planning, and technical delivery planning 

• Develop and maintain verification and validation strategies, plans, procedures, matrices, and evidence to demonstrate compliance with applicable requirements 

• Support integration, test readiness, verification execution, defect resolution, and customer acceptance activities 

• Plan, prepare, and support internal and customer technical reviews, including requirements, design, test readiness, production readiness, verification, and acceptance reviews 

• Manage technical risks, issues, assumptions, dependencies, opportunities, and engineering change impacts 

• Support configuration management and engineering change control to ensure the approved technical baseline is maintained 

• Coordinate with specialty engineering disciplines, including safety, security, cyberworthiness, ILS, reliability, maintainability, human factors, EMI/EMC, and environmental qualification 

• Support Defence technical assurance, certification, compliance, and acceptance activities, including preparation of objective quality evidence. 

• Participate in internal engineering and quality processes, including non-conformance reports, failure reports, corrective actions, investigations, lessons learned, and continuous improvement activities. 

• Provide technical leadership, task guidance, peer review, and mentoring to junior engineers and other engineering team members. 

• Support adherence to company Quality processes and procedures, including those required for AS9100 accreditation 

What you’ll bring  

The role requires the following experience and skills: 

• Degree in electronic/electrical engineering or similar discipline. 

• 6+ years of experience in a System Engineering role. 

• Experience with Defence acquisition or sustainment programs. 

• Demonstrated experience applying systems engineering principles across the system lifecycle. 

• Understanding of engineering change control, configuration management, technical risk management, and technical decision-making processes. 

• Eligible for registration with the Board of Professional Engineers of Queensland (RPEQ). 

• Ability to work independently or as part of a multi-disciplinary team. 

• Ability to communicate complex technical information clearly and effectively to engineering, management, supplier, and customer stakeholders. 

Desirable 

• Post-graduate qualifications in Systems Engineering. 

• Knowledge of model-based systems engineering (MBSE). 

• Knowledge of systems architecture frameworks such as DoDAF and standards such as MOSA/SOSA. 

• Experience with Defence communications systems, electronic warfare systems, RF systems, mission systems, command and control systems, platform integration, or other complex Defence capabilities. 

• Experience preparing objective quality evidence for verification, validation, certification, compliance, or customer acceptance. 

About L3Harris Australia  

L3Harris has provided advanced technology solutions to government and commercial customers across Australia for more than 25 years. L3Harris has facilities in all major cities and employs over 500 people.  

L3Harris in Eight Mile Plains is The Centre of Excellence for Electronic Warfare and is home to world-leading design, manufacture and integration expertise and the sustainment of high-reliability electronic warfare components. Our highly skilled workforce design and develop Australia’s sovereign defence capabilities such as the next-generation space, airborne and cyber capabilities for the Australian warfighter.  

A few of our employee benefits are: 

• An additional week of leave per annum plus the option to buy or sell up to 2 weeks additional annual leave. 

• Salary continuance insurance (SCI pays 75% of your base salary and bonus for up to 2 years) 

• Flexible working hours and patterns depending on location 

• Discounted private health insurance 

• Life & Total Permanent Disability Cover 

• Novated Car Leasing 

• Company supported professional development programs 

• Retail Reward programs 

• Company paid parking/onsite company car park  

• Half day finish on Fridays  

Important to know 

Due to the nature of our work many our roles require an Australian citizenship and will require the successful candidate to successfully apply and hold an Australian Defence Security Clearance and/or be assessed to work with ITAR information. Please answer the pre-screening questions upon applying for this assessment. 

For more information or a confidential discussion, please contact our Talent Acquisition team at recruitment@aus.L3Harris.com  

L3Harris respectfully requests no agency submissions at this time. 

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