Senior Mechanical Engineer in Defence Sector

Join AECOM as a Senior Mechanical Engineer, where you will play a pivotal role in shaping innovative solutions for the defence sector. Utilize your expertise in mechanical design, analysis, and systems integration to contribute to exciting projects that enhance national security. Collaborate with a talented team of engineers and professionals dedicated to de…

Join our dynamic Building Engineering team at AECOM as we expand our defence portfolio. We are in search of a Principal Mechanical Engineer who excels as a technical leader, delivering innovative design solutions across various sectors.This position is primarily based in Brisbane, though candidates from Adelaide or Melbourne are also welcome to apply.Your Impact:Leverage your extensive mechanical design expertise to achieve high-quality, cost-effective results for health, defence, transport, data centres, sports, and other significant building projects throughout Australia and New Zealand.Take the lead on mechanical design packages for key client projects, ensuring technical delivery and meticulous design review for excellence and compliance.Work collaboratively with multidisciplinary teams to uphold quality in calculations, specifications, and detailed design documentation.Provide mentorship and guidance to junior engineers, fostering their technical growth and nurturing a culture of continuous improvement.Build and sustain robust relationships with internal teams and clients, contributing to successful project outcomes and repeat business.

Join our growing Buildings Services Team as a Senior Hydraulic Engineer focusing on Defence Projects. While we prefer candidates based in Adelaide, we welcome applications from those in Brisbane or Melbourne.Your Impact:Lead the design and delivery of intricate hydraulic solutions for major building initiatives, ensuring adherence to the National Construction Code (NCC), Australian Standards, and local regulations.Work collaboratively with multidisciplinary teams of engineers, technicians, and designers to tackle technical challenges, ensuring high-quality, integrated project outcomes.Coordinate with project managers and team leaders to prioritize tasks, manage resources, and deliver projects on schedule, enhancing overall team performance.Engage with external clients to clarify project scopes, manage expectations, and provide effective engineering solutions.Mentor junior engineers and designers by offering technical guidance, conducting reviews, and sharing knowledge to foster team growth and excellence.

Join AECOM as a Principal or Senior Electrical Engineer specializing in Defence projects. In this pivotal role, you will leverage your expertise to contribute to innovative engineering solutions that support national security initiatives. Collaborate with multidisciplinary teams and engage with stakeholders to deliver exceptional results that meet the evolving needs of the defence sector.

Join AECOM as a Senior Civil Designer/Drafter specializing in Defence projects. In this pivotal role, you will leverage your extensive expertise to contribute to the design and drafting of complex civil engineering projects within the defence sector. Your responsibilities will include collaborating with multidisciplinary teams, ensuring compliance with industry standards, and delivering high-quality designs that meet client specifications.We are looking for a proactive individual who thrives in a dynamic environment and possesses a strong attention to detail. If you are passionate about civil engineering and are eager to make an impact in the defence industry, we would love to hear from you!

We are excited to announce that due to our continued expansion, AECOM is seeking a Principal Structural Engineer to enhance our Building Engineering team, primarily focusing on Defence Projects. While we have a preference for candidates in Adelaide, we welcome applications from Sydney, Melbourne, and Brisbane as well.Key Responsibilities:Serve as a senior technical resource, providing expert advice to the team. Leverage your knowledge of key building components, including stability design, basements, structural steel framing, and connections, while leading the design of cost-effective post-tensioned concrete floors.Utilize your experience with various construction materials to effectively communicate and collaborate with clients, architects, and builders throughout all phases of major projects.Oversee and refine design and delivery procedures, fostering high-quality and cost-effective work from your team members.Employ your technical expertise for quality control, reviewing design calculations and drawings, and preparing technical specifications.Contribute as part of a multi-disciplinary engineering team, participating in inter-disciplinary reviews of project deliverables, while also aiding in the development of engineering budgets and schedules to fulfill project requirements.

Join AECOM, a global leader in infrastructure and environmental services, as we seek talented individuals to contribute to our defence projects across Australia. Our team is dedicated to shaping the future of defence by delivering innovative solutions that enhance national security.

Join AECOM as a Principal/Director of Environmental Impact Assessment in the Defence sector, where you will lead vital projects that shape sustainable practices for our clients. In this role, you will be responsible for managing and guiding environmental assessments, ensuring compliance with legislative requirements while driving innovative solutions. You will engage with stakeholders and work collaboratively with multi-disciplinary teams to deliver high-quality outcomes. Your expertise will help navigate complex environmental challenges and enhance the resilience of Defence operations.

Join AECOM as the Director of Mechanical Engineering, specializing in Water Infrastructure. In this pivotal role, you will lead a team of experienced engineers and collaborate with multidisciplinary teams to design and implement innovative solutions for water-related projects. Your expertise will be crucial in advancing sustainable practices and ensuring compliance with industry standards.

About Us:EnerMech is a renowned specialist service provider dedicated to delivering safe, integrated solutions for intricate energy projects worldwide. With over 50 years of experience, we have empowered our clients with unparalleled expertise, advanced equipment, and cutting-edge technology that supports the entire asset lifecycle, both offshore and on land.Our operations are structured around three key global business lines: Energy Solutions, Infrastructure & Industrial Solutions, and Lifting Solutions. We provide a comprehensive array of services, ranging from cranes and lifting operations to fluid power, training, equipment rental, pipeline and subsea services, process management, and valve solutions. Our goal is to optimize performance, enhance reliability, and boost efficiency for our clients.By prioritizing operational excellence, we create value through tailored integrated solutions that minimize risk and maximize efficiency, solidifying our position as a trusted partner in the industry.Currently, EnerMech is expanding its operations at the Lytton Refinery and is seeking skilled Mechanical Fitters to join our dedicated team on a full-time basis. This exciting opportunity offers competitive EBA benefits and promotes a healthy work-life balance, ensuring you return home every night.

Who Are We?EnerMech is a premier service provider dedicated to delivering safe, integrated solutions for intricate energy projects globally.With over 50 years of experience, we empower our clients worldwide with unmatched expertise, state-of-the-art equipment, and technology that supports the complete asset life-cycle, both offshore and onshore. Our three global business lines—Energy Solutions, Infrastructure & Industrial Solutions, and Lifting Solutions—enable us to offer a comprehensive array of services including crane operations, lifting, fluid power, training, equipment rental, pipeline and subsea, process, and valves. All these services are designed to optimize performance, enhance reliability, and improve efficiency for our clients.Our commitment to operational excellence allows us to deliver value through customized integrated solutions, significantly reducing risk and enhancing efficiency, establishing us as a trusted partner at every stage.We are currently expanding our operations at the Lytton Refinery and are in search of skilled IRATA Rope Access Mechanical Fitters to join our team on a full-time basis. This exciting role offers competitive EBA benefits and ensures work-life balance, allowing you to return home each night.

THE ROLEJoin Heirloom’s Plant Design team as a Mechanical Engineer, where you will provide critical technical expertise in industrial airflow systems. This dynamic and hands-on position requires you to design and specify our next generation Airflow System, ensuring it meets key performance targets while effectively managing substantial air volumes through the carbonation system.WHAT YOU'LL DOLead the comprehensive design process for the carbonation airflow system, including fan selection, intake systems, and flow-conditioning geometry.Specify equipment that satisfies performance targets for airflow uniformity, flow rates, and velocity.Define and specify sealing systems to achieve efficient airflow as per design standards.Create technical specifications, general arrangement drawings, RFQs, and performance requirements for large-scale air-moving equipment.Oversee supplier assessments and equipment selections for fans, intake systems, and seals.Contribute to make vs. buy analysis for the airflow system.Act as the technical lead for the roadmap involving CFD (Computational Fluid Dynamics), physical modeling, and full-size prototyping in collaboration with the Innovation team to validate the airflow system.Utilize Reynolds Number scaling laws to convert data from physical models to commercial-scale performance.Provide on-site support and troubleshooting during the commissioning phase of airflow systems.Design and specify equipment for supporting mechanical systems, including dust collection and system-level water delivery.Travel to vendor locations and project sites (both domestic and international) for FATs and installations.WHAT YOU'LL BRINGBachelor's Degree in Mechanical Engineering.5+ years of experience in a design-focused role involving industrial-scale airflow management such as LNG cooling, gas turbine intakes, data center cooling, or industrial HVAC.Strong technical acumen with the ability to audit intricate engineering details.Hands-on experience with commissioning and startup of industrial cooling systems.Proficient in CFD software and related modeling tools.Excellent communication and collaboration skills.

Join our dynamic project management team at Turner & Townsend in Brisbane, as we prepare for an extensive pipeline of major Real Estate projects set to launch in 2026. We are looking for passionate and experienced Project Managers/Senior Project Managers to lead impactful projects within the education sector.In this role, you will be responsible for:Leading and managing intricate projects as the primary interface with clients.Building and nurturing professional relationships, resolving challenges, and driving projects to successful outcomes.Overseeing the design process to meet client specifications while managing expectations effectively.Reviewing project plans, specifications, timelines, and cost-saving strategies to identify potential construction issues.Managing project timelines, risks, and comprehensive reporting.Overseeing project budgets and advising on strategies to keep financials aligned.Facilitating project meetings with clients and consultants.Engaging in marketing and business development initiatives.

The RoleJoin our dynamic Mechanical Department as a Senior Product Design Engineer, where you will spearhead the design and implementation of intricate mechanical subsystems that significantly impact the economics, reliability, and scalability of our innovative core technology. This position encompasses all stages from early-stage research and development (R&D) to new product introduction (NPI) and full-scale deployment, requiring a solid foundation in engineering principles, astute decision-making, and a focus on practical, manufacturable solutions.You will actively challenge conventional wisdom, meticulously assess trade-offs, and push design and manufacturing boundaries while maintaining a steadfast emphasis on cost-effectiveness, reliability, and long-term operational viability. This role grants you substantial ownership as an individual contributor, showcasing your technical leadership and cross-functional influence.What You’ll DoTake full ownership of end-to-end design for complex mechanical subsystems, managing everything from requirements definition and architecture to validation, production ramp, and deployment.Enhance subsystem performance across key metrics such as cost, reliability, manufacturability, and serviceability, directly influencing $/ton CO₂ economics.Design components for both low and high-volume production using various manufacturing techniques, including sheet metal stamping, casting, roll forming, and extrusions.Lead design trade studies leveraging first-principles analysis, data-driven methodologies, and sound engineering judgment.Create and develop product-level test equipment, fixtures, and validation strategies that support Design for Reliability (DfR), including accelerated life testing, stress testing, and failure-mode-driven validation to guarantee robust subsystem and system performance throughout their intended lifespan.Collaborate closely with suppliers, equipment operators, manufacturing, and supply chain teams to ensure designs are resilient, scalable, and ready for production.Produce and review comprehensive 2D drawings with appropriate GD&T, ensuring alignment with production and inspection standards.Facilitate rapid prototyping and iterative development cycles while ensuring adherence to NPI rigor.Serve as a technical mentor within the team, promoting best practices and elevating engineering quality standards.What You’ll Bring5+ years of experience in designing and delivering products through their entire lifecycle, from concept to production.A strong passion for product design and a commitment to solving complex engineering challenges.

Join our dynamic team at Egis Group as a Principal Mechanical Designer in Brisbane! We are seeking an innovative and experienced professional who will play a key role in designing and developing advanced mechanical systems. You will collaborate with a team of engineers and designers to deliver high-quality solutions that meet client expectations and industry standards.

Join AECOM as a Principal Mechanical BIM Modeller and lead the way in innovative building design and engineering solutions. You will collaborate with a multidisciplinary team to create cutting-edge mechanical designs using Building Information Modelling (BIM) technologies. Your expertise will be critical in optimizing project workflows and enhancing design accuracy.

Join AECOM as a Sector Manager for Dams, where you will play a pivotal role in leading and managing dam-related projects in Southeast Queensland. This position offers an exciting opportunity to collaborate with a diverse team of professionals dedicated to delivering innovative solutions in water infrastructure.

Specialist Mechanical Maintenance Positions – Brisbane MetroEnerMech proudly announces a call for expressions of interest in our esteemed collaboration with Ampol, providing vital Mechanical, Electrical & Instrumentation (MEI) maintenance services to the Lytton Refinery.To further enhance our operational capabilities, we are inviting applications from experienced, safety-conscious individuals for full-time, permanent roles in the following positions: Mechanical Fitters Boilermakers Scaffolders These roles are essential for ensuring the safe and efficient functioning of one of Queensland’s key energy infrastructure assets.

We are seeking a highly skilled Senior Geotechnical Engineer to join our dynamic team in Brisbane. In this pivotal role, you will be responsible for providing technical expertise in geotechnical engineering, overseeing projects from inception to completion. You'll collaborate with multidisciplinary teams and ensure compliance with industry standards while delivering innovative solutions for our clients.

Join our dynamic team at AECOM as a Senior to Principal Civil Engineer, where you will lead innovative projects that shape the future of infrastructure. We are seeking a highly skilled professional with extensive experience in civil engineering to oversee the planning, design, and execution of complex engineering projects. You will collaborate with multi-disciplinary teams, ensuring that all aspects of projects meet client expectations and industry standards.Your responsibilities will include conducting feasibility studies, preparing detailed engineering reports, and managing project timelines and budgets. You will also mentor junior engineers and provide technical guidance to ensure the delivery of high-quality outcomes.