Heavy Diesel Plant Mechanics - St Mary's NSW
About Keller Australia
We are Australia's leader in geotechnical solutions and proud to be one of the globally connected companies of Keller, the world's largest geotechnical engineering contractor. We have delivered industry leading foundations and ground improvement solutions to the building, construction, and mining industries in Australia for over 60 years.
About the role
We are seeking Heavy Diesel Plant Mechanics to oversee maintenance operations, ensuring the reliability and efficiency of our specialist plant and equipment.
Key Responsibilities
- Servicing and maintaining heavy plant and mobile equipment
- Skilled in diagnosing and repairing diesel engines
- Proficient in working with hydraulic systems, including pumps, valves, and cylinders
- Experienced in mechanical repairs to drivetrains, transmissions, and braking systems
- Competent in basic electrical fault-finding on plant equipment
- Able to perform both planned maintenance and breakdown repairs efficiently
- Adheres to safe work practices, isolation procedures, and workshop standards
- Knowledgeable in plant maintenance schedules and maintaining accurate documentation
- Ensure all maintenance work complies with HSEQ policies & safety standards
- Maintain strong relationships with internal teams, suppliers & subcontractors
- Provide technical support and ensure work meets Keller's quality standards
- Able to carry out day-to-day hands-on fitter duties alongside leading responsibilities
About you
- Trade-qualified Mobile Plant, Heavy Diesel Vehicle Mechanic (Certificate III or equivalent)
- Strong experience in similar environments
- Hands-on experience across a wide range of heavy machinery equipment
- Diagnostic, hydraulic, mechanical, electrical, and diesel engine repair skills
- Proven experience in component and full machine rebuilds, overhauls, shutdowns, and preventative maintenance to OEM standards
- Confident working independently onsite, managing servicing schedules, breakdowns, parts procurement, and maintenance priorities
- Additional skills in fabrication, fitting, machining, welding (MIG, oxy, plastic), and auto-electrical diagnostics (advantageous)
- Strong commitment to safety, reliability, and maintaining fleet uptime full Australian working rights
Why work with us
- Competitive salary
- Job stability with a global leader
- Flexible working environment
- A strong commitment to learning and development
- Collaborative and supportive team culture
- Contribute to sustainability improvements in construction
- Knowledge-sharing from global experts
- Fair employment practices with a focus on promoting from within
- Above industry-paid Parental Leave
- Exposure to innovative projects and career progression opportunities
How to apply
We are committed to attracting, developing, and retaining the right people who are highly competent, live our values and actively contribute to our long-term success.
If you are ready to join the Keller Australia Team, submit your application by clicking the apply button now!
Keller Australia is an equal opportunity employer, and we support diversity in our workforce. Applications from people of culturally and linguistically diverse backgrounds; equity target groups including women, people with disabilities, people who identify as LGBTI+; and people of Aboriginal and Torres Strait Islander descent, are encouraged to apply.