Commissioning Engineer - Mechanical

Webuild S.p.A.; Sydney; On-site; AUD 120,000 - 170,000; Full time

Benefits offered by this job

Remuneration package

Diversity & inclusion

Employee recognition

Growth opportunities

Novated leases

Supportive culture

Exciting project

Job summary

Webuild is seeking a Commissioning Engineer - Mechanical for Parklife Metro JV based at Badgerys Creek, Sydney.

You will oversee testing and commissioning of Environmental Control Systems (ECS – HVAC), hydraulic services, fire systems, Tunnel Ventilation Systems, lifts and escalators, and interface with BMCS. Strong planning, coordination, and communication are essential to meet project milestones.

Qualifications

• Bachelor’s degree in Mechanical Engineering or related field.
• 3–5 years of experience in mechanical system commissioning.
• Experience in commissioning for large-scale construction projects is preferred.
• Strong communication and interpersonal skills.
• Attention to detail and quality assurance.

Responsibilities

• Review drawings, specifications, and designs to understand scope and commissionability of mechanical systems.
• Develop and implement commissioning plans, procedures, and checklists.
• Coordinate with project managers, supervisors, contractors, and subcontractors to align T&C activities and timelines.
• Prepare manuals, testing protocols, and schedules.
• Oversee T&C and V&V of ECS HVAC, hydraulic services, fire systems, TVS, lifts & escalators; conduct functional tests.
• Troubleshoot issues identified during T&C; document outcomes and witness testing.
• Maintain records of T&C activities and hand over final Test Reports to client.

Skills

Mechanical commissioning

HVAC

Project coordination

Documentation

Education

Bachelor’s degree in Mechanical Engineering

Job description

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Parklife Metro JV is leading the delivery of the Sydney Metro – Western Sydney Airport project, a landmark transport initiative that will link St Marys to Bradfield and seamlessly connect with the new Western Sydney Airport.

This visionary project driven by a joint venture between Plenary, RATP Dev, Siemens, and Webuild includes the construction of six new stations, 12 state-of-the-art metro trains, advanced rail systems, and a modern stabling and maintenance facility at Orchard Hills.

As the largest public-private partnership (PPP) ever awarded in New South Wales, this $5 billion project is set to redefine the future of Greater Western Sydney by enhancing connectivity and driving economic growth. Being part of Parklife Metro JV means joining a transformative infrastructure venture with the chance to grow your career in a fast-paced, forward-thinking environment.

This is more than just a rail project. It’s a critical step in shaping the long-term social and economic fabric of Western Sydney. The infrastructure being delivered will support the region’s expected population growth, improve access to employment hubs, and promote sustainable, integrated urban development. At the heart of this transformation is a commitment to innovation, sustainability, and community impact.

Parklife Metro JV is building a culture that values collaboration, diversity, and inclusion. With a strong focus on safety, professional development, and creating lasting benefits for local communities, our team is empowered to push boundaries and deliver excellence at every stage. Whether you're an engineer, project manager, systems specialist, or corporate professional, you’ll be part of a high-performing team working on one of the most significant infrastructure projects in Australia’s history.

• Competitive remuneration package
• Diversity & inclusion initiatives
• Employee recognition programs
• Growth and development opportunities within a large-scale project
• Novated leases
• Supportive and collaborative work culture
• Work on one of the most exciting infrastructure projects in Australia

The Opportunity:

Employed by Webuild , Parklife Me tro is seeking a Commissioning Engineer - Mechanicalto join our team based atBadgerys Creek.

As a Commissioning Engineer - Mechanical,you are responsible for overseeing and managing the testing & commissioning (T&C) process of mechanical systems, including Environmental Control Systems (ECS – i.e. HVAC), hydraulic services, fire systems (detection & protection), Tunnel Ventilation Systems (TVS), Lifts & Escalators, other related mechanical installations and interface with other systems (e.g. BMCS).

This role involves ensuring that all mechanical systems are fully functional, meet design specifications, andoperate efficiently in accordance with project requirements. The position requires technical expertise in mechanical systems, as well as strong project management and communication skills to work with multidisciplinary teams and stakeholders.

Duties & Responsibilities:

• Review project drawings, specifications, and system designs to understand the scope and commissionability of mechanical systems
• Develop and implement commissioning plans, procedures, and checklists for mechanical systems
• Coordinate with project managers, supervisors, contractors, and subcontractors to ensure alignment on T&C activities and timelines
• Ensure necessary documentation is prepared, including manuals, testing protocols, and schedules
• Oversee the T&C and V&V of all mechanical systems, including testing, adjusting, and balancing (TAB) of (ECS) HVAC systems, hydraulic services, fire systems, TVS, Lifts & Escalators, and related equipment. Conduct functional tests to ensure systems operate according to design intent, performance criteria, and safety regulations
• Troubleshoot mechanical systems and resolve issuesidentified during T&C or operation
• Coordinate, facilitate and document outcomes of witness testing for mechanical systems
• Raise,track and manage the resolution of T&C related punch list, non-conformance & defect items of mechanical systems
• Act as the main point of contact for allT&C related matters for mechanical systems
• Collaborate with design engineers, contractors, vendors, and other stakeholders to ensure systems aretested and commissioned in accordance with the project timeline
• Provide regular updates onT&C progress, challenges, and resolutions to the T&C Team and project management teams
• Coordinate T&C activities for mechanical systems with the greater T&C team
• Adjust T&C activities in alignment with T&C priorities as advised by T&C Senior Commissioning Engineers, T&C leads and management
• Support the T&C of interfacing systems (e.g. BMCS, TVCS,etc) in conjunction with other T&C engineers, contractors & vendors
• Maintainaccurate records of T&C activities, including test results, equipment settings, as-built conditions & witnessing activities
• Compile andsubmit final Test Reports detailing system performance, issues resolved, and compliance with project specifications
• Update and resolve review comments received on Test Reports. Ensure that all T&C documentation is complete and handed over to the client or facility management team
• Assist in the preparation and handover of mechanical systems to the client or operational teams upon successful T&C
• Identify opportunities for improving T&C processes and practices

Criteria :

• Bachelor’s degree in Mechanical Engineering or related field
• Minimum of 3-5 years of experience in mechanical system commissioning or a related field, with a strong focus on(ECS) HVAC, hydraulic services, and fire systems
• Experience in commissioning for commercial, industrial, or large-scale construction projects is preferred. Strong knowledge of mechanical systems design, installation, and operation
• Excellent communication and interpersonal skills for interacting with project teams, clients, and contractors
• Strong problem-solving and troubleshooting abilities. Attention to detail and a commitment to quality assurance

Join us and help deliver a legacy that will serve generations to come while building a rewarding and purpose-driven career.