Principal Mechanical Critical Systems Engineer

The Team We are a global, independent, multi-disciplinary consultancy delivering sustainable engineering and design solutions across the built environment. With over 1,200 engineers and designers across 29 locations, we apply our expertise to local market conditions to deliver resilient, low‑carbon engineering solutions. We are 100% partner‑owned and are proud to have been named Building Magazine’s Engineering Consultant of the Year in 2024, 2022, and 2021. Our data centre team has been leading mission‑critical design since 2006, delivering over 2,000 MW of capacity globally. With a reputation for engineering excellence and sustainability, we’ve partnered with some of the world’s most high‑profile clients to create energy‑efficient, low‑emission data centres that set new standards for resilience and innovation. Recognised as Data Centre Consultancy of the Year in 2025, our team continues to push boundaries in design and delivery. In Australia, our specialist data centre team has been growing steadily across our Sydney and Melbourne offices, forming a key part of our wider APAC and global network. Working collaboratively with our integrated architectural and localisation partners, we offer an engineering‑led approach that supports clients within their global frameworks. This is an exciting opportunity to join a team that’s shaping the future of data centre design in Australia and beyond. The Role We’re looking for an experienced and client‑focused Principal Engineer with mechanical design experience to join our data centre team. You will have excellent mechanical design and consulting experience, ideally from a highly technical background. You will have previous data centre design experience or your previous project experience will demonstrate an ability to transition into our data centre sector. Our data centre specialist designers will mentor you as you enter our internal DC101 programme. This will give all new joiners the skills, context, and mentors to successfully transition into the sector and grow your career in this exciting industry. You’ll play a leading role in some of the most high‑profile data centre projects in the world. As part of our collaborative, multi‑disciplinary team, you will drive the delivery of regional and global data centre projects. As part of the role, you’ll be engaging directly with clients, shaping technical strategies, as well as reviewing and developing designs for our projects. You’ll be trusted to take ownership of your work while being supported by a team of experienced engineers. As a Principal, you’ll also support the development of junior engineers, as well as contribute to project planning and fee proposals. In a leading role, you’ll help bring your technical expertise to the market and shape the direction of our growing team. Responsibilities Deliver accurate mechanical design solutions including HVAC air‑conditioning, chilled water, ventilation, equipment selections, public health, and building management services systems. Produce mechanical designs, including HVAC and public health and building management services systems. Prepare technical specifications, schedules, calculations, project reports, and supporting documentation. Support project teams in the delivery of high‑quality mechanical design packages. Conduct site inspections and surveys to inform design development. Develop detailed and coordinated design solutions in collaboration with multi‑disciplinary teams. Contribute to internal and external project meetings, providing mechanical expertise and updates. Assist with fee proposals and business development activities as required. Collaborate with colleagues across regional and international offices on project delivery. The Skills We’re looking for a qualified engineer educated to a degree level in Mechanical Engineering, Building Services Engineering, or a related technical discipline. You will have gained experience in a consulting engineering role within your engineering field, ideally preferably some experience in the data centre sector including of understanding the principles of data centre design and delivery. You may be Chartered or working towards it, either way, we’ll support your career path. In your most recent position you have consistently demonstrated your ability to manage multiple large scale projects and teams to deliver to, and exceed client expectations. You have proven ability in producing designs, preparing specifications and project reports, carrying out site inspections and surveys, as well as leading the discipline team. Through this experience, you can support your project teams to design and develop detailed and accurate designs. We know that to be the best at what we do we need a diverse workforce underpinned by an inclusive culture. Creating environments where everyone can find joy doing their best work is also great for everyone. That’s why we positively welcome applications from people of all backgrounds and identities, and encourage, support, and celebrate the diverse voices of our people. #J-18808-Ljbffr