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
ACCIONA are looking for a Mechanical Engineer to join Western Harbour Tunnel – Stage 2. As a Mechanical Engineer (Project Engineer), you will manage TBM assembly, maintenance, and troubleshooting during operations. Working on a roster (e.g. 7/3–7/4), you will ensure mechanical systems operate safely and efficiently. This role is critical to delivering one of Sydney’s most significant infrastructure projects.
Key accountabilities for the position:
- Assemble TBM mechanical components
- Inspect and maintain TBM systems
- Diagnose and resolve mechanical faults
- Coordinate with electrical and hydraulic teams
- Ensure compliance with safety standards
- Support continuous improvement initiatives
Required Skills and Competencies
Capability & Experience you will need to have:
- Degree in Mechanical Engineering
- TBM or tunnelling experience highly regarded
- Large infrastructure project experience
- Strong troubleshooting and problem-solving skills
- Ability to work on rostered shifts
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.
Top Skills
What We Do
Leaders in developing regenerative infrastructure to design a better planet.
Our offer covers the whole value chain, from design and construction to operation and maintenance. We develop our business activities based on the desire to contribute to economic and social development in the communities in which we operate.
We execute our sustainability strategy through a Sustainability Master Plan, a road map containing all the initiatives of the Company in this field. Our aim is to lead the transition towards a low-carbon economy, bringing quality criteria and innovation processes to all projects in order to optimize the efficient use of resources and respect the environment.
We have been a carbon neutral company since 2016, but we go further and want to create a positive impact, with people and the planet at the center.
