Mechanical Supervisor, Weekends
Confirmed on the employer's own hiring board on Oct 12, 2026. First seen by Alion on Oct 7, 2026.
ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society. Our workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing in our mission to design a better planet. Are you a passionate individual who wants to make a difference, promote sustainable development, and find solutions to the biggest global challenges including climate change, overpopulation, and water scarcity? Come and join us in building the infrastructure our planet needs to achieve a sustainable future.
Job Description
The Project
ACCIONA has been selected to deliver Western Harbour Tunnel - Stage 2, Sydney’s third harbour crossing. The new Western Harbour Tunnel (WHT) will connect to WestConnex at the Rozelle Interchange, cross underneath Sydney Harbour between Birchgrove and Waverton, and connect with the Warringah Freeway near North Sydney.
Project scope includes:
- Construction of approximately 4.8 kilometres of mainline tunnels with three lanes in each direction
- Civil, Mechanical and Electrical fitout of Stage 1 and Stage 2 tunnels
- Surface level work, including on and off ramps and tie-in work to the Warringah Freeway
As the Mechanical Supervisor, Weekends (Friday - Monday) you will lead all TBM mechanical activities across weekend operations, maintenance and disassembly. The role coordinates TBM mechanics and maintenance crews for the weekend crews, sets work priorities and ensures compliance with OEM and project requirements. You will support continuous tunnelling operations by managing faults, driving safe work practices and maintaining strong communication across rotating rosters.
Specific Tasks Include
- Supervise TBM mechanical work across all phases
- Lead and mentor mechanics and maintenance crews
- Diagnose and resolve mechanical and hydraulic faults across all TBM systems (e.g. cutterhead, slurry circuit, thrust, cooling, pumps and auxiliary plant)
- Plan and prioritise maintenance and repair actions
- Apply and enforce safety, quality and environmental processes
- Complete inspections, reports and audit documentation
- Maintain consistent handovers across rotating rosters
Required Skills and Competencies
Qualifications and Experience
- Trade qualification in mechanical field
- Prior experience working on major infrastructure projects
- Strong TBM (ideally Slurry shield) or heavy plant maintenance experience
- Proven team leadership on rotating rosters
- Clear commitment to safety and quality
ACCIONA has been given the Top Employer 2022, 2023, 2024 & 2025 certification in Australia, which certifies the company's commitment to excellence in human resources management and those who focus on putting their people first through their exceptional HR policies. Since establishing a presence in Australia in 2002, ACCIONA has made significant investments in local opportunities and project development. ACCIONA employs more than 3,000 people in its renewable energy, infrastructure and water projects across Australia & New Zealand.
We are an Equal Opportunity Employer and promote equality and diversity. Indigenous Australians and candidates from minority groups are encouraged to apply.