Mechanical Supervisor SMP

at Downer
Published October 17, 2026
Location Barrow Island, Australia
Category Engineering  
Job Type Full-time  

Description

The Opportunity

Downer’s Energy & Utilities business is seeking an experienced Mechanical Supervisor – Structural, Mechanical and Piping (SMP) to support a digester tank replacement project on Barrow Island.

This casual FIFO position is scheduled to commence on ASAP, working a 2:1 roster with 12-hour shifts. The initial assignment is expected to run for approximately three months, with the potential to extend.

You will lead site crews delivering:

Tank installation
Piping network installation
Ladders and platform installation
Structural steel assembly, installation and modification
Mechanical equipment installation and alignment
Piping fabrication, flange management and bolting
Testing, inspection and commissioning support
Your day will include leading pre-starts and crew briefings, coordinating work fronts, supervising site activities, implementing Zero Harm requirements, completing reports and managing crew timesheet entries.

You will ensure all SMP activities are delivered safely, efficiently and in accordance with approved drawings, specifications, procedures, inspection and test plans, applicable standards, client requirements and the project schedule.

What We’re Looking For

We are looking for a practical, safety-focused supervisor who can confidently lead crews within a complex industrial environment.

To be successful, you will bring:

A relevant trade qualification in Mechanical Fitting, Boilermaking/Fabrication, Pipefitting or an equivalent SMP discipline
At least 10 years’ experience across heavy industrial, mining, infrastructure, oil and gas or energy projects
At least five years’ experience supervising structural, mechanical and piping construction activities
Experience managing tank, structural steel, mechanical equipment and piping installation
Demonstrated experience coordinating brownfield interfaces and multidisciplinary work fronts
The ability to interpret general arrangement drawings, isometrics, P&IDs, fabrication drawings, specifications and installation details
Strong knowledge of lifting and rigging interfaces, equipment alignment, dimensional control, bolting, flange management and pressure testing
Experience planning labour, materials, plant and work fronts against construction schedules
Knowledge of ITPs, test packs, punch lists, quality inspections and handover requirements
Strong leadership, communication, coordination and practical problem-solving skills
Mandatory requirements

Construction White Card
Current driver’s licence
Relevant trade certificate
Gas Test Atmospheres competency
Ability to complete the required medical and drug and alcohol assessment
Desirable requirements

Frontline management or supervisory training
Working at Heights
Confined Space
High Risk Work Licence, including relevant dogging or rigging competencies
First Attack Fire Fighting
Current permit-to-work and site-specific competencies
Section 26 appointment or eligibility, where applicable
What We Offer

FIFO employment on a consistent 2:1 roster
12-hour shifts
Competitive hourly rate aligned with the applicable site supervisor rate
An initial three-month assignment with potential to extend
The opportunity to lead a capable SMP crew on a significant brownfield project
A strong focus on safety, quality and Zero Harm
Support from experienced project, engineering, quality, HSE and logistics teams
About Energy & Utilities

Downer’s Energy & Utilities business is an integrated trans-Tasman team delivering services that connect communities to essential networks and infrastructure. We design, build, operate and maintain critical assets across water, electricity, telecommunications, industrial and power generation sectors.

Downer is an inclusive employer that values diversity and welcomes applications from people of all backgrounds, experiences and cultures.

How to Apply

If you are an experienced SMP Supervisor ready to lead from the front and deliver safe, high-quality work, we would like to hear from you.

Please submit your application online via the advertisement. Email applications will not be accepted.