Commissioning Engineer - Mechanical

About Us

At HDR, we specialise in engineering, architecture, environmental and construction services. Our global team of more than 15,000 employees is united by our values and strengthened by our employee-owned culture. We collaborate across disciplines, leverage global expertise, and empower our people to create solutions that make a lasting impact.

As our Commissioning business continues to grow, we're seeking a Mechanical Commissioning Engineer to join our Sydney team. This is an exciting opportunity to work on complex mission critical and building services projects across Australia while developing your career within HDR's global network of commissioning professionals.

The Role

As a Commissioning Engineer - Mechanical, you'll support the delivery of commissioning services across a diverse portfolio of projects, with a particular focus on mission critical facilities and data centres.

Working alongside experienced commissioning and technical design teams, you'll be involved in the planning, testing, validation and handover of critical mechanical systems, helping ensure they perform safely, efficiently and reliably in accordance with client requirements and design intent.

This is a permanent position based in Sydney, supporting a growing portfolio of commissioning projects . The role provides an excellent opportunity to gain exposure to some of the country's most technically complex facilities while building your career within HDR's expanding Commissioning practice.

What You’ll Be Doing

You will:

• Support commissioning activities throughout construction, testing and handover phases.
• Participate in Factory Witness Tests (FWTs), Factory Acceptance Tests (FATs), site inspections and functional performance testing.
• Review commissioning plans, test procedures, technical submissions and project documentation.
• Assist with troubleshooting, issue resolution and verification of system performance.
• Work closely with contractors, consultants, vendors, facility operators and client teams.
• Maintain commissioning records, reporting and project documentation.
• Support commissioning management activities including commissioning plans, test scripts and handover documentation.
• Assist in tracking commissioning issues, project risks and system readiness throughout the project lifecycle.
• Enter and maintain commissioning data within commissioning management software platforms.
• Support preparation of commissioning reports for project teams and clients.
• Attend contractor, client and commissioning meetings and contribute to documentation and reporting outcomes.
• Contribute to quality, safety and continuous improvement initiatives across the Commissioning team.

What Makes This Role Different?

Working within a growing national commissioning team, you'll be exposed to technologies and systems that are rarely encountered in conventional building services projects, while being supported by HDR's global technical network.

You'll have the opportunity to develop expertise across:

• HVAC and critical cooling systems
• Chilled water, condenser water and hydronic systems
• Computer Room Air Conditioning (CRAC) systems
• Coolant Distribution Units (CDUs) and direct-to-chip liquid cooling
• Air and water testing, adjusting and balancing (TAB)
• Smoke control and pressurisation systems
• Fire protection and hydraulic building services systems
• Building Management Systems (BMS) and critical environmental control systems

What You’ll Bring

We’re looking for someone who is:

• Passionate about engineering, commissioning and technical problem solving.
• Eager to further develop their expertise within commissioning, building services and mission critical environments.
• Detail-oriented, organised and committed to quality outcomes.
• A strong communicator who enjoys working collaboratively with project teams.
• Proactive and willing to take ownership of their work and professional development.
• Safety-focused with a continuous improvement mindset.

Ideally, You’ll Have

• A degree, diploma or trade qualification in Mechanical Engineering, Building Services or a related discipline.
• Demonstrated experience in commissioning, construction, facilities engineering or building services.
• Exposure to mechanical building systems including HVAC, chilled water, hydronic, fire protection, hydraulic or critical cooling systems.
• Experience working on site-based projects.
• Exposure to factory testing, equipment inspections, commissioning activities or building systems testing.
• Strong analytical and troubleshooting skills.
• Excellent written and verbal communication skills.
• Exposure to commissioning management processes, system testing and project delivery methodologies.
• Strong attention to detail and documentation quality.
• Ability to manage multiple priorities within a fast-paced project environment.
• Experience within data centres, healthcare projects or other critical environments will be highly regarded.
• Australian Citizenship and the ability to obtain an Australian Government Security Clearance will be advantageous.
• A willingness to travel to project sites as required.

Why Join HDR?

• Employee ownership – be part of a company where our people have a direct stake in our success.
• Major project exposure – work on complex data centre and digital infrastructure projects shaping the future of connected communities.
• Career development – mentoring and support from experienced technical and project leaders
• Collaborative culture – work within a multidisciplinary team that values quality and innovation
• Global TMT expertise - collaborate with HDR's internationally recognised mission critical and data centre teams #LI-CG3