Principal System Engineer

RTX; Sydney; Hybrid; AUD 150,000 - 190,000; Full time

Job summary

Raytheon Australia is seeking a Principal Systems Engineer to contribute to the Collins Class Submarine Combat System. You will work across the full capability lifecycle in multidisciplinary teams, applying rigorous systems engineering practices, and mentoring junior engineers.

The role offers hybrid work arrangements within Australia, with opportunities to influence critical defence capabilities and engage with stakeholders across engineering, program delivery and the customer community.

Qualifications

• Degree in engineering with CPEng eligibility.
• 8+ years in systems engineering across multiple domains.
• Ability to collaborate with stakeholders at all levels.
• Eligible for NV1 security clearance as needed.
• Desirable defence/regulated-industry experience.
• Proficiency with Microsoft and Atlassian tool suites (Teams, Jira, Confluence).

Responsibilities

• Design, develop and implement product solutions for integration into the Combat System.
• Lead verification and validation activities per design requirements.
• Generate and maintain design certification documentation.
• Provide engineering support to transition products into operational service.
• Conduct risk analysis and plan verification activities.
• Lead technical reviews across the project lifecycle.
• Mentor junior engineers in applying systems engineering methodologies.

Skills

Stakeholder collaboration

Autonomous work

Systems thinking

Engineering leadership

Education

Engineering degree

CPEng eligibility

Tools

Teams

Jira

Confluence

Linux

Job description

Date Posted: 2026-10-28 Country: Australia Location: AU-WA-HENDERSON-001 ~ 1 Mcgrath Rd ~ MCGRATH Position Role Type: Hybrid Work with an experienced team on the nation’s most complex engineering programs. Be valued and empowered to reach your full potential, supported by an inclusive culture. Gain hands-on experience from concept to delivery. Learn from the best in a high calibre team with great benefits and professional development. Your mission starts here at Raytheon Australia. We’re seeking a Principal Systems Engineer to join our team and contribute to the ongoing evolution of the Collins Class Submarine Combat System, one of Australia’s most critical Defence capabilities. Working within multidisciplinary teams, you’ll apply your systems engineering expertise across the full capability lifecycle, contributing to the design, integration and enhancement of complex Defence systems. At Raytheon Australia, you’ll work alongside some of the industry’s most experienced engineering professionals, supported by flexible working arrangements, global expertise and a commitment to technical excellence. As part of the Project Integrated Project Team, and reporting to the Senior Principal Systems Engineer, you’ll work closely with stakeholders across engineering, program delivery and the customer community to solve complex technical challenges, support capability enhancement activities, and help integrate new technologies into the Collins Class submarine fleet.

Key Responsibilities

• Design, develop and implement product solutions for integration into the Combat System.
• Lead and conduct product verification and validation activities, ensuring alignment with design requirements and system specifications.
• Generate and maintain product design certification documentation in accordance with system and product certification requirements.
• Provide engineering support to transition products and capabilities into operational service.
• Conduct technical risk analysis and support the planning, documentation and execution of verification and validation activities.
• Lead technical reviews throughout the project lifecycle, including peer reviews, preliminary and detailed design reviews, and test readiness reviews.
• Provide mentoring to junior engineers, supporting the application of systems engineering methodologies, tools and processes.

Skills, Experience and Qualifications

• Degree qualified in a relevant Engineering discipline with eligibility to hold Chartered Professional (CPEng) standing and an appropriate level of Design Authority delegation to support system Design Certification activities.
• Minimum 8 years’ experience in Systems Engineering involving one or more of the following: requirements definition, requirements management, analysis design, integration and verification across Electrical, Electronic, Mechanical, Communications, Software and/or Combat/RF Systems.
• Demonstrated ability to collaborate effectively with stakeholders across customer, supplier, peer and senior leadership groups.
• Sound understanding of project delivery milestones, couples with the ability to work autonomously and delivery quality outcomes against scheduled commitments.
• Ability to undertake travel as required to meet the needs of the role.
• Successful candidates must be eligible to obtain and maintain a Negative Vetting 1 (NV1) Security clearance as needed. Eligibility can be found at https://agsva.gov.au
• Desirable Experience working within Defence or other highly regulated industries.
• Experience with Microsoft and Atlassian tool suites, including Teams, Jira and Confluence.
• Experience preparing and reviewing engineering, technical and test documentation.
• Experience with Linux operating systems, networking concepts and technical problem solving.

This is your opportunity to join the brightest minds in the nation working for the mission on leading-edge technology to deliver Australia’s most significant defence capabilities.

RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.