Job Description

The Project

The consortium of John Holland, Bouygues Construction, Arcadis Australia, Jacobs and Ventia has been selected to build South Australia's biggest-ever road infrastructure project. In partnership with the South Australian Government, this consortium forms the Torrens to Darlington (T2D) Alliance.

The Torrens to Darlington (T2D) Alliance, will deliver the final 10.5km section of the North-South Corridor, forming a continuous 78 km, non-stop, traffic light-free motorway, and contributing to a long-lasting legacy for the community and people of Adelaide.

The T2D Project involves constructing two separate tunnels – the Southern Tunnels and the Northern Tunnels connected by an open motorway, with a combined total distance of 10.5km, open to traffic in 2031. The T2D project comprises the tunnels, surface works including road and bridge construction in addition to services buildings and complex mechanical and electrical infrastructure. The T2D Alliance is committed to providing opportunities for local people, Aboriginal workers, apprentices, trainees and job seekers who are long-term unemployed and offers people an incredible opportunity to be a part of an iconic project.

The Role

Reporting to the Mechanical and Electrical Superintendent / Mechanical Project Manager you will be responsible for overseeing daily mechanical installation and fit-out activities on site, ensuring works are delivered safely, efficiently, on schedule, and to the highest quality standards.

You will lead frontline delivery, coordinate subcontractors and trades, and ensure all mechanical works align with project specifications, construction programs, and safety requirements.

Responsibilities

Supervise and coordinate all mechanical fit-out works within the tunnel environmentLead subcontractors,



trades, and site crews to achieve productivity and project milestonesEnsure works are completed in accordance with drawings, specifications, and quality standardsPromote and enforce a solid safety culture, ensuring compliance with site procedures, SWMS, and permit systemsMonitor daily progress and proactively identify risks, delays, and technical challengesCoordinate inspections, testing, commissioning, and defect rectificationLiaise closely with engineers, planners, project managers, and client representativesMaintain accurate site records, progress reports, and handover documentation

About You

Proven experience as a Mechanical Supervisor on major infrastructure or civil construction projectsStrong hands-on experience delivering road tunnel fit-out works (preferred)Solid knowledge of mechanical systems including HVAC, ventilation, pumping, drainage, pipework, and fire/life safety systemsStrong ability to interpret drawings, specifications, and construction programsDemonstrated leadership skills with experience managing subcontractors, trades, and site teamsStrong understanding of construction sequencing, commissioning, and handover processesHigh focus on safety, quality, and compliance in complex site environmentsMust be currently residing in, or willing to relocate to Adelaide to support project requirements (support provided for successful candidate)

We Offer

Your success is our success, and as an Alliance, we are committed to being an employer of choice in Adelaide. We pride ourselves on fostering a diverse and inclusive workplace where different perspectives and ideas are valued as crucial to our long-term success.

We are invested in your future with us and prioritise providing rich career experiences and ongoing development opportunities to support your growth.

📌 Mechanical Supervisor (Adelaide)
🏢 John Holland
📍 Adelaide