Project Manager

McMahon Services is seeking an experienced Project Manager to join our Building & Construction team, delivering a diverse portfolio of commercial and Defence construction projects across South Australia.

This is an opportunity for a capable construction professional who enjoys taking ownership, working closely with clients and leading project teams to deliver strong outcomes.

Whether you’re an established Project Manager looking for greater project variety or an experienced Senior Project Engineer, Senior Project Coordinator or Contract Administrator ready to take the next step, we’d like to hear from you.

About McMahon Services 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 Building & Construction team delivers commercial, industrial, Defence, education, government and community projects. We invest in our people and provide genuine opportunities to develop, take on greater responsibility and build long-term careers.

About The Role As Project Manager, you’ll take responsibility for the successful delivery of commercial and Defence construction projects from pre-construction through to completion.

Working closely with clients, consultants, subcontractors and internal teams, you’ll manage programme, commercial performance, procurement, quality and project risk while ensuring works are delivered safely, on time and within budget.

You’ll lead your project team, build strong client relationships and have the autonomy to make decisions and drive successful project outcomes. You’ll also gain exposure to Defence-based projects, providing the opportunity to work in structured, high-compliance environments and build valuable experience within this growing sector.

Please note: Due to the nature of some Defence projects, applicants must be Australian Citizens and eligible to obtain and maintain an Australian Defence Security Clearance.

What You’ll Do

• Manage commercial and Defence construction projects from planning through to completion.
• Lead Project Engineers, Site Managers and project delivery teams.
• Manage budgets, forecasting, procurement and commercial performance.
• Oversee contract administration, variations, claims and project risk.
• Manage project programmes, resources and key delivery milestones.
• Build strong relationships with clients, consultants, subcontractors and stakeholders.
• Drive safety, quality and environmental performance.
• Ensure project delivery meets relevant Defence, client and compliance requirements where applicable.
• Identify opportunities for value engineering and improved project outcomes.
• Provide clear project reporting and maintain strong communication with internal stakeholders.

What You’ll Bring

• Proven experience delivering commercial construction projects as a Project Manager, or strong Senior Project Engineer experience with the capability to step up.
• Experience delivering Design & Construct (D&C) projects.
• Experience with a Tier 2 or high-performing Tier 3 contractor highly regarded.
• Strong commercial acumen and experience managing project financial performance.
• Sound understanding of construction contracts, procurement and project delivery.
• Strong leadership, communication and stakeholder management skills.
• Relevant tertiary qualification in Construction Management, Engineering or a related discipline preferred.
• Australian Citizenship with the ability to obtain and maintain an Australian Defence Security Clearance.

What Will Set You Apart

• Previous Defence or Government construction experience.
• Experience taking projects through the full delivery lifecycle.
• Strong client and subcontractor relationship management skills.
• Experience using Procore, Pronto or similar project management systems.
• Commercial carpentry experience will be highly regarded.
• A practical, solutions-focused approach to project delivery.
• Ambition to continue developing into more senior project leadership roles.

Why Join McMahon Services?

• Take ownership of diverse commercial and Defence construction projects.
• Gain experience delivering nationally important Defence work.
• Work with experienced construction and commercial leaders.
• Genuine pathways into Senior Project Manager and broader leadership roles.
• Collaborative, down-to-earth team environment.
• Access to ongoing professional development through the MAC Learning Academy.
• Join one of Australia’s leading privately owned construction companies.

Ready for Your Next Project? If you’re ready to take greater ownership of project delivery and build the next stage of your construction career, we’d love to hear from you.

Apply today and join McMahon Services. 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.