Executive Assistant – Environmental Services

Are you an organised, proactive professional with a strong background in executive support? We are seeking a dedicated Executive Assistant to play a central role in supporting our Executive General Manager and the Environmental Services Leadership Group. This position offers the opportunity to influence business efficiency, drive process improvements and be a trusted partner to senior leadership.

About McMahon Services

At McMahon Services, we are dedicated to delivering excellence across Australia and New Zealand. We foster a culture of innovation and continuous improvement, underpinned by the highest standards of safety, integrity and collaboration. Join our team and be part of an organisation that builds lasting positive change in the communities where we operate.

About the Role

As an Executive Assistant - Environmental Services, you will be the key point of coordination for executive operations and leadership activities. From managing schedules and reports to supporting HR processes and business projects, your role is central to the seamless running of the business. You’ll also provide guidance to the Systems & Training Administrator, helping to drive efficiency and collaboration across administrative functions.

What You'll Be Doing

• Managing the EGM’s calendar, meetings, agendas, minutes and action registers.
• Coordinating monthly board papers, leadership reporting, and end-of-month reviews.
• Organising travel, events, workshops, and conferences across Australia and New Zealand.
• Processing purchase orders, invoices, and expense claims, and maintaining sponsorship & donations registers.
• Supporting HR processes, including recruitment, onboarding/offboarding, and timesheet coordination.
• Providing coaching and support to the Systems & Training Administrator.
• Driving process improvements and fostering collaboration across the Environmental Services business unit.

What You'll Bring

• Certificate/Diploma in Business Administration or related field (desirable).
• Demonstrated experience in senior administrative or executive support roles.
• Experience in HR processes, financial coordination, and reporting.
• Strong Microsoft Office and ERP system skills (Pronto, SAP, Oracle desirable).
• Exceptional organisational and communication skills, with high attention to detail.
• Ability to prioritise competing deadlines and solve problems constructively.
• Current driver’s licence and adaptability to travel when required.

Why Join McMahon Services?

We offer a supportive, high-performance environment where your contributions are recognised. You’ll enjoy:

• A competitive remuneration package and benefits that reward your experience.
• Employee discounts, recognition and financial wellness programs.
• A strong commitment to safety, compliance and well-being.
• A collaborative culture that values innovation and continuous improvement.

Your next big career move starts here. Apply now!

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.