McMahon Services is seeking experienced Contracts Administrators to support project delivery within our Environmental, Engineering & Projects, and Building & Construction teams.

These are stream-aligned roles, embedded within project teams to provide dedicated contract administration and commercial support. Appointments may be made within one or more business area based on operational requirements and candidate experience.

About McMahon Services

McMahon Services is a national leader in construction, environmental and industrial services across Australia and New Zealand. Family-owned and values-driven, we deliver complex projects supported by strong governance, systems and commercial discipline.

About the Role

As a Contracts Administrator, you will manage the implementation and administration of contractual processes for projects within your allocated business stream. Working closely with Project Managers, Commercial Managers, Legal, Finance and Procurement teams, you will support consistent, compliant and commercially sound project delivery.

What You’ll Do

• Administer head contracts and subcontracts in line with company systems and approval frameworks
• Conduct contract reviews (within delegated thresholds) and support Legal-led reviews
• Prepare contract summaries and ensure contractual obligations are clearly communicated
• Prepare and administer contractual notices including variations, EOTs and delay claims
• Ensure subcontracts are in place and executed prior to commencement
• Participate in project commercial reviews and escalate risks or issues as required
• Support continuous improvement of contract management systems and processes

What You’ll Bring

• Tertiary qualification in Construction Management, Business, Law or a related discipline
• Experience in a contracts or commercial administration role within construction or infrastructure
• Strong understanding of contract administration and commercial risk
• Proficiency in Microsoft Office and ability to work with ERP and project systems
• Strong communication, coordination and stakeholder engagement skills
• Current driver’s licence

What Will Set You Apart

• Experience working within environmental, civil, engineering or building projects
• Exposure to claims preparation, EOTs and variation management
• Experience collaborating closely with Legal and Commercial teams
• Strong attention to detail and systems-driven mindset
• Ability to work effectively within structured governance environments

Why Join McMahon Services?

• Dedicated role within a defined business stream
• Exposure to complex, live projects across South Australia
• Opportunity to build strong commercial and contract management capability
• Career development pathways within a national organisation
• Supportive, safety-first and values-driven culture

If you’re a commercially minded professional looking to support project delivery with confidence and rigour, apply now to 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.