As a Senior Project Engineer – Water Infrastructure, you will play a critical role on one of South Australia’s most significant and high-impact infrastructure projects, delivering major utilities and water infrastructure works. Working across complex construction environments, you will drive project delivery outcomes through technical leadership, coordination, and hands-on delivery while contributing to the transformation of Adelaide’s transport network.

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

Reporting to the Project Manager and Senior Project Manager, you will lead the delivery of complex civil utilities and water infrastructure works across major project packages. This role will see you coordinating construction activities, subcontractors, commissioning works, and project interfaces while driving strong safety, quality, commercial, and program outcomes.

Based in Adelaide, you will work across both office and site environments, providing technical leadership and hands-on project delivery support within a fast-paced major infrastructure setting.

What You’ll Do:

• Lead the delivery of utilities and water infrastructure works across major project packages
• Coordinate self-perform crew, subcontractors, and suppliers to achieve safe and efficient project outcomes
• Manage project activities including procurement, scheduling, cost control, and contract administration
• Oversee water main installation, commissioning, pressure testing, and live main connection works
• Provide technical guidance to site teams and ensure compliance with project, safety, and quality requirements
• Prepare and manage project documentation including RFIs, reports, variations, and progress claims
• Build strong working relationships with clients, utility authorities, subcontractors, and project stakeholders
• Contribute to planning, problem-solving, and continuous improvement across project delivery

What You’ll Bring:

• Extensive experience delivering water utilities packages on major infrastructure projects
• Tertiary qualification in Civil Engineering or a related discipline
• Experience in project coordination, procurement, scheduling, cost control, and contract administration
• Proficiency in project delivery systems such as InEight, Aconex, Procore, or similar
• Experience in MSCL (Mild Steel Cement Lined) fabrication, welding, and installation
• Experience in DICL (Ductile Iron Cement Lined) and PVC pipeline installation
• Knowledge of water main commissioning, live main connections, pressure testing, and disinfection procedures
• Ability to self-perform and manage plant and labour crews on trunk water main projects
• Knowledge of trench excavation, shoring, and reinstatement requirements to relevant standards
• Current White Card, Driver’s Licence, and ability to obtain required clearances

What Will Set You Apart:

• Proven leadership capability within large infrastructure project environments
• Strong commercial, contractual, and risk management understanding
• Demonstrated experience managing multidisciplinary construction interfaces
• Strong knowledge of utility authority requirements and approvals processes
• A proactive and solutions-focused approach with sound judgement
• Strong stakeholder engagement and relationship-building skills
• Ability to thrive in fast-paced, complex infrastructure environments
• Strong drive, initiative, and adaptability to changing project demands

Why Join McMahon Services?

At McMahon Services, you’ll join a high-performing team delivering complex projects that shape communities and create lasting impact. We offer a supportive environment where your contribution is valued and your career can thrive.

• Competitive salary package and genuine career progression opportunities
• Long-term, stable employment with a leading national contractor
• Opportunity to work on complex, challenging, and rewarding civil and infrastructure projects
• Strong safety-first culture backed by experienced operational support

Ready to play a key role on one of South Australia’s most significant infrastructure projects? Apply now and join the McMahon Services team.

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.

No recruitment agencies please.