Senior Mechanical Commissioning Engineer

Shape the Future of Western Sydney
Parklife Metro Has Been Awarded The Sydney Metro SSTOM Package, a $5 Billion Public-Private Partnership (PPP) Project That Will Transform Western Sydney. This Major Infrastructure Package Includes

• Six brand-new metro stations from St Marys to the new Aerotropolis
• 12 new metro trains and core rail systems
• A state-of-the-art maintenance and stabling facility at Orchard Hills

As part of the Plenary, RATP Dev, Siemens, and Webuild consortium, we're delivering a city-shaping project that will define the future of transport in NSW.

The Opportunity
The Senior Commissioning Engineer - Mechanical Systems will lead the planning, coordination, and execution of testing and commissioning activities for mechanical plant, equipment, and associated control systems on a major rail/metro infrastructure project in Western Sydney. The role ensures mechanical systems operate safely, efficiently, and in compliance with contractual, statutory, and operational requirements before handover to operations.

• Commissioning OR Senior Commissioning Engineer -

Why You Should Apply

• Own End-to-End T&C - Oversee all station-level MEP and rail systems commissioning
• High-Profile Delivery Role - Help bring a $5B rail system into operation
• Subcontractor Leadership - Manage complex delivery teams and drive standardised outcomes
• Industry-leading salary and benefits - A highly competitive package reflecting the scale and complexity of the role.

Key Responsibilities

• Develop and manage commissioning strategies, schedules, and procedures for mechanical systems.
• Coordinate commissioning across mechanical, electrical, control, and civil teams, engaging OEMs and subcontractors.
• Lead and supervise commissioning of tunnel ventilation, HVAC, hydraulics, lifts, escalators, and fire systems.
• Oversee functional, integration, performance, and endurance testing in line with approved procedures.
• Ensure compliance with WHS, rail safety, environmental requirements, TfNSW, and Australian Standards.
• Conduct risk assessments, HAZOP studies, and safety-in-design workshops.
• Review and approve test plans, reports, verification records, and handover documentation.
• Support defect rectification, warranty testing, and client acceptance processes.

What We're Looking For

• Bachelor's degree in Mechanical Engineering (or equivalent) with 8-10 years' commissioning experience on rail/metro/infrastructure projects
• Expertise in tunnel ventilation, HVAC, pumps, lifts/escalators, and fire suppression systems
• Skilled in integrated control systems, SCADA interface testing, and multidisciplinary commissioning programs
• Strong knowledge of Australian Standards, Building Code of Australia, and TfNSW requirements
• Desirable: CPEng/eligibility, Sydney Metro or Australian rail project experience, and knowledge of systems assurance, RAMS, and asset handover
• Strong leadership, stakeholder coordination, problem-solving, safety, and quality focus.
• Detail-oriented, proactive, adaptable, and willing to work site and office locations in Western Sydney.

Why Join Us?

• We foster a supportive and collaborative culture, that prioritises the safety of our people and the environment
• Develop your career on the SSTOM Project - a defining rail infrastructure initiative for Western Sydney
• Enjoy an inclusive work environment, with opportunities for professional growth and long-term project engagement.
• Join a collaborative and experienced consortium focused on excellence and innovation
• Health & wellbeing initiatives and Novated lease options available
• Diversity and inclusion & Employee recognition programs.

What's next?
If you have a strong background for the role and want to play a key role in shaping Western Sydney's transport future,
click 'Apply'
to join our growing team.

If you progress, we will call you for a phone interview. Followed by a face-to-face meeting via Teams or in person. Prior to an offer, we'll request your qualifications and conduct a medical & drug and alcohol check.

Interested to learn more about Parklife Metro JV? Visit our website at

*Deliver a legacy. Build your future. Join Webuild | Parklife Metro.
Our office will be closed from
24th December to 5th January
. Interviews for roles will resume in the
new year
. Wishing you a wonderful festive season and we look forward to connecting with you soon*