Mechanical Engineer (Building Services)

Design the Critical Environments Powering a Digital Future

At HDR, we're doing something different.

As an employee-owned business, our people don't just contribute to projects, they take ownership of them. You'll work alongside some of the industry's most respected technical specialists, delivering complex and critical infrastructure that supports the way businesses, communities and economies connect and operate.

Engineering What's Next

HDR delivers some of Australia's most complex and high-performing facilities, including hyperscale data centres, critical infrastructure and mission-critical environments.

These projects demand technical excellence, innovation and close collaboration across disciplines. As part of our National Building Engineering Services team, you'll play a key role in developing mechanical engineering solutions that are efficient, resilient and built for the future.

The Opportunity

We're growing our Building Engineering Services team in Melbourne and Sydney and are looking for Mechanical Engineers to support the delivery of technically challenging projects across our expanding Data Centre, Mission Critical and Building Engineering portfolio.

This opportunity is ideally suited to an engineer with consulting experience who enjoys hands-on design, solving complex technical challenges and contributing to high-quality engineering outcomes across the full project lifecycle.

Working closely with our national mechanical team, you'll contribute to project delivery from concept through to construction, developing practical and innovative HVAC and building services solutions as part of a multidisciplinary design environment.

In This Role You Will

• Contribute to mechanical design packages from concept through to construction delivery
• Perform HVAC engineering calculations, system selection and design development
• Prepare coordinated engineering documentation, specifications and technical reports
• Support the delivery of compliant, high-quality mechanical building services solutions
• Collaborate with architects, engineers and specialist consultants across multidisciplinary projects
• Participate in design reviews and technical quality processes
• Assist with site inspections, contractor queries and construction phase services
• Coordinate effectively across disciplines to resolve design interfaces and challenges
• Contribute to continuous improvement and technical excellence across the team

What We're Looking For

• Degree-qualified Mechanical Engineer
• Typically 2-6 years' experience in a consulting engineering environment
• Experience delivering mechanical building services design projects
• Solid HVAC design and technical problem-solving capability
• Experience preparing engineering reports, specifications and technical documentation
• Understanding of Australian codes, standards and regulatory requirements, including NCC and AS1668
• Strong communication and collaboration skills
• A proactive approach and commitment to technical excellence

Highly Regarded

• Data Centre or Mission Critical project experience
• Experience undertaking HVAC heat load calculations and system sizing
• Experience with Revit, Navisworks or other design coordination platforms
• Exposure to health, defence, education, industrial or commercial projects
• Chartered (CPEng) status or a desire to work towards Chartership.

Why Join HDR?

• Employee ownership model – share in the success you help create
• Data centre and TMT exposure – work on critical infrastructure shaping digital economies
• Collaborative culture – learn from experienced leaders and technical specialists
• Technical excellence - contribute to innovative and complex engineering solutions
• Real impact – deliver projects that shape how people connect, grow and thrive

Why Our Roles Are Different

This is more than just another role.

You’ll be joining a team that is:

• Actively growing across NSW, VIC & QLD
• Backed by a strong national & global business
• Delivering complex, high-profile projects
• Investing in technical excellence and innovation
• Offering a genuine opportunity to grow your technical capability and career

At HDR, you’re not just part of the team — you’re part of the business. #LI-CG3

What We Believe
HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.

Our Commitment
As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

Our Commitment

HDR is committed to fostering an inclusive and diverse work environment and is proud to be an equal opportunity employer. We welcome applications from all qualified and/or experienced candidates, regardless of gender identity or expression, race or ethnicity, sexual orientation, age, or religious and political beliefs. This includes encouragement for veterans.

HDR acknowledges the Traditional Owners and Custodians of the lands on which we, our clients and communities live and work. As part of our commitment to reconciliation and diversity, we encourage Aboriginal and Torres Strait Islander peoples to apply. Join us in making a meaningful impact and contributing to an inclusive community.