McMahon Services is one of Australia's largest privately owned construction, industrial and environmental services organisations, employing more than 1,300 people across Australia.

Our reputation has been built on delivering quality projects, strong client relationships and creating opportunities for our people. We pride ourselves on fostering a supportive and collaborative culture where people are encouraged to learn, grow and build long-term careers.

About the Role

We're looking for an organised, proactive and motivated Executive Assistant to support our Executive General Manager - Building & Construction. The Building & Construction team has 230 staff, operates from 5 offices and the group turns over approximately $160m pa.

This is a varied role where you'll be the trusted support to the Executive General Manager while also assisting the wider Building & Construction team with administration when needed. You'll be involved in everything from diary management and coordinating meetings through to supporting recruitment, onboarding and leadership reporting.

Whether you're already working as an Executive Assistant or you're an experienced Administrator looking to take the next step, we'll provide the mentoring and support to help you succeed.

As this role supports projects within the Defence sector, applicants must be Australian Citizens and be eligible to obtain and maintain a Defence Security Clearance

What You'll Do

- Support the Executive General Manager in achieving goals.
- Manage calendars, meetings, and travel arrangements.
- Prepare meeting agendas, minutes and action items.
- Coordinate reports, presentations and business documentation to support the senior leadership team.
- Assist with leadership meetings and end-of-month reporting.
- Process purchase orders, invoices and expense claims for Executive requirements.
- Support recruitment, onboarding and general people administration.
- Organise team events, workshops and conferences.
- Maintain records, registers and administrative systems.
- Identify opportunities to improve processes and administrative efficiency.

What You'll Bring

- Previous experience as an Executive Assistant or within an administration role (2-3+ years).
- Australian Citizenship with the ability to obtain and maintain a Defence Security Clearance.
- Excellent organisational and time management skills.
- Strong attention to detail and the ability to manage competing priorities.
- A proactive approach and willingness to support wherever required.
- Excellent communication skills and confidence working with stakeholders at all levels.
- A professional and confidential approach to your work.

What Will Set You Apart

- Experience supporting senior leaders or executives.
- A positive, approachable and team-focused attitude.
- The ability to work independently while managing multiple priorities.
- Strong organisational skills and a continuous improvement mindset.
- A genuine desire to build a long-term career.

Why Join McMahon Services?

- Genuine career development opportunities with room to grow.
- Mentoring and support to help you build your Executive Assistant career.
- A collaborative and supportive team environment.
- A diverse role where no two days are the same.
- Access to the MAC Learning Academy, employee benefits and wellbeing initiatives.
- Join one of Australia's leading privately owned construction companies.

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.

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McMahon Services is an industry leading, privately owned industrial, construction and environmental services provider.

Established in 1990 by brothers David and Andrew McMahon, McMahon Services has grown from a team of 12 into a truly national business.

Our family business heritage and culture of innovation set us apart, fostering a commitment to developing leading edge approaches across the whole organisation that surpass industry standards.

With offices in South Australia, Queensland, Western Australia, New South Wales, Victoria and the Northern Territory, we employ more than 500 staff and deliver projects from city centres to remote locations

McMahon Services has delivered some of Australia’s most difficult and significant construction services projects.

We go to where our clients need us to be, with a proven ability to undertake work in remote locations, coupled with an exceptional emergency response capability. Our immediate response means we are in office ready to plan and take action when needed.

Our diversity and can-do attitude are our core strengths. We apply our knowledge, resources and experienced teams to work across a broad range of disciplines and sectors, providing our clients with the expertise and hands-on skills to meet their specific needs.As a multi-disciplinary, full service provider, we use our own direct wage staff and boast a $70 million network of modern company-owned plant and equipment.

We were awarded Federal Safety Accreditation in 2009 - the first multi-disciplinary construction services company in Australia to achieve this recognition.

We look forward to the future and tackling new challenges with the same enthusiasm, dedication and excellence that has been true of all of our operations to date.

Our core values stem from our beginnings as a small family business and remain unchanged.

Our people are central to what we do

Our greatest asset is our people. It is through the hard work of our teams across the business that McMahon Services has continued to grow and extend the boundaries of performance. Our business is rich in tradition, with many of our staff being second generation employees.

We strive for innovation

Innovation and surpassing industry standards is what we strive for. We approach each project with secure, cost effective and value adding solutions. McMahon Services has been recognised by the industry and our peers for innovation and best practice, and we will continue to reach for recent heights.

We have an unbeatable can-do attitude

We are determined to exceed client expectation with every project we undertake, no matter the size. We go the distance and to where our clients need us to be. We have built our business on tackling the tough jobs.

We are safety focused and our business is underpinned by a strong safety culture – team mates looking after team mates. Our objective is to continually improve our safety performance to ensure a zero harm environment for our works,



stakeholders and the wider community.

We have a family business heritage

We respect where we have come from and all those involved in the ongoing journey from clients to partners, subcontractors, suppliers and staff.

Source: this is an extract from the company's own website.

McMahon Services is an industry leading, privately owned industrial, construction and environmental services provider.

Established in 1990 by brothers David and Andrew McMahon, McMahon Services has grown from a team of 12 into a truly national business.

Our family business heritage and culture of innovation set us apart, fostering a commitment to developing leading edge approaches across the whole organisation that surpass industry standards.

With offices in South Australia, Queensland, Western Australia, New South Wales, Victoria and the Northern Territory, we employ more than 500 staff and deliver projects from city centres to remote locations

McMahon Services has delivered some of Australia’s most difficult and significant construction services projects.

We go to where our clients need us to be, with a proven ability to undertake work in remote locations, coupled with an exceptional emergency response capability. Our immediate response means we are on-site ready to plan and take action when needed.

Our diversity and can-do attitude are our core strengths. We apply our knowledge, resources and experienced teams to work across a broad range of disciplines and sectors, providing our clients with the expertise and hands-on skills to meet their specific needs.As a multi-disciplinary, full service provider, we use our own direct wage staff and boast a $70 million network of modern company-owned plant and equipment.

We were awarded Federal Safety Accreditation in 2009 - the first multi-disciplinary construction services company in Australia to achieve this recognition.

We look forward to the future and tackling new challenges with the same enthusiasm, dedication and excellence that has been true of all of our operations to date.

Our core values stem from our beginnings as a small family business and remain unchanged.

Our people are central to what we do

Our greatest asset is our people. It is through the hard work of our teams across the business that McMahon Services has continued to grow and extend the boundaries of performance. Our business is rich in tradition, with many of our staff being second generation employees.

We strive for innovation

Innovation and surpassing industry standards is what we strive for. We approach each project with safe, cost effective and value adding solutions. McMahon Services has been recognised by the industry and our peers for innovation and best practice, and we will continue to reach for new heights.

We have an unbeatable can-do attitude

We are determined to exceed client expectation with every project we undertake, no matter the size. We go the distance and to where our clients need us to be. We have built our business on tackling the tough jobs.

We are safety focused and our business is underpinned by a strong safety culture – team mates looking after team mates. Our objective is to continually improve our safety performance to ensure a zero harm environment for our works, stakeholders and the wider community.

We have a family business heritage

We respect where we have come from and all those involved in the ongoing journey from clients to partners, subcontractors, suppliers and staff.

Source: this is an extract from the company's own website.

Personal Assistant to CEO (Business Operations)

7d ago

What can I earn as an Executive Assistant

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📌 Executive Assistant - Building & Construction (South Australia)
🏢 @
📍 South Australia