McMahon Services is looking for a highly organised Plant Administrator to support our workshop and maintenance teams in Adelaide.

This role suits someone who thrives in a fast-paced environment and enjoys being at the centre of operations.

About McMahon Services

McMahon Services is one of Australia’s largest privately owned construction, industrial and environmental services organisations, operating across Australia and New Zealand with over 1,200 employees. Our reputation is built on integrity, strong relationships and delivering certainty for our customers.

About the Role

This role is all about keeping things moving.

You’ll support plant and workshop operations by managing maintenance records, compliance and documentation—ensuring equipment is safe, serviced and ready to support project delivery.

What You’ll Do

• Maintain accurate plant maintenance and service records
• Support workshop teams with day-to-day admin and coordination
• Raise purchase orders, process invoices and manage documentation
• Track registrations, servicing schedules and compliance requirements
• Assist with safety administration, reporting and insurance claims

What You’ll Bring

• Experience in plant, service or workshop administration
• Strong attention to detail and ability to manage competing priorities
• Confident communication and stakeholder coordination skills
• Proficiency in Microsoft Office and administration systems

Why Join McMahon Services?

• Secure, long-term opportunity with a strong pipeline of work
• Supportive and collaborative team environment
• Career development opportunities within a national business
• Safety-first culture with well-established systems and processes
• Apply now and play a key role in keeping our operations running.

No recruitment agencies please.

At McMahon Services, we embrace diversity and inclusion as fundamental values. We believe that a diverse workforce fosters innovation, creativity and a deeper understanding of the communities we serve. We are committed to creating an inclusive environment where all employees feel valued, respected and empowered to contribute their unique perspectives and talents. We encourage applications from people of all backgrounds, identities and experiences.