Title: Principal Mechanical Engineer Due to continued growth within Defence and Maritime, KBR is seeking a Principal Mechanical Engineer to join our team. Based in either Adelaide or Perth, this role will see you leading the design, specification, and package management of cranes, hoists, and load-handling systems. You’ll be at the forefront of projects that demand precision, safety, and compliance, while working closely with suppliers, stakeholders, and cross-disciplinary teams to deliver outcomes that make a real impact. Key Responsibilities: + Design and specify cranes, hoists, rail-mounted equipment, and load-handling systems. + Analyse load movements, paths, and dynamic behaviours to deliver safe and efficient solutions. + Prepare lift rigging and motion studies, ensuring compliance with Australian Standards. + Apply structural and mechanical engineering principles across strength, fatigue, stability, braking, and motion dynamics. + Lead package management activities, from specification through to FAT and SAT with suppliers. + Build strong relationships with stakeholders across operations, maintenance, asset ownership, and regulatory bodies. + Keep safety front and centre, integrating risk management into every stage of the design. Skills and Experience Required: + Mechanical Engineering degree (or equivalent). + Proven experience in machine design, particularly cranes, hoists, and rail-mounted equipment. + Strong knowledge of structural and dynamic analysis, with experience applying standards such as AS3990, AS4100, AS1170, and AS4024. + Hands-on experience preparing rigging and motion studies. + Demonstrated success in supplier and package management. + Excellent communication skills with the ability to collaborate across teams. + A strong safety mindset and ability to embed risk management in design. + Due to Defence project requirements, candidates must hold Australian Citizenship with the eligibility to obtain an Australian Defence Clearance. Why Join KBR? Our people are the heart of our business; they are what make us successful. That’s why we’re committed to creating conditions in which they can flourish and feel valued, so they can focus on doing what they do best. Our Purpose: We are driven by our purpose of Together, delivering infrastructure for a better tomorrow. Our results and reputation for excellence are underpinned by our people and our culture of caring, collaboration learning and trust to deliver innovative professional services for our customers. We leverage our global network and work in seamless partnership with our customers to deliver innovative, creative and sustainable solutions that will make a lasting impact on communities around Australia. Our Values: Everything we do at KBR is centered around our people, customers, and the communities that we strive to elevate. We work together as a OneKBR team of teams to drive our shared purpose and address our customers’ growing needs. The results we deliver are underpinned by our collective focus on excellence, passion for the people we work with and the innovations we create to deliver them. We act with integrity and encourage our people to follow rewarding careers and empower them to strive for excellence and deliver the best results for our customers and communities. Our Culture: We are a people company — great people doing great things, and we look for people who bring passion as well as technical excellence to their jobs as we believe every employee is integral to shaping the future of our business. With the feel of an agile company and the capability of a large company, we encourage and give our people the autonomy to strive for opportunities that exist in all directions and equip them with the resources to become leaders of tomorrow. Infrastructure Services business offers fulfilling careers with room to explore their creativity and regularly step up and swim outside of their lane. In addition to working on some fantastic projects, KBR offer an array of benefits focused on providing our people with a great working environment, continual career development, flexible work arrangements and work/life balance Shape tomorrow by applying today! Apply now and follow us on LinkedIn (https://www.linkedin.com/company/kbr-inc/) to stay up to date with all the latest news and job opportunities. #LI-DNP #LI-DNI  #S-DNI