McMahon Services is seeking an experienced Senior Legal Counsel to join our Legal team to provide strategic legal support across a diverse portfolio of construction, industrial and environmental services projects.
This is a senior role focused on partnering with operational and executive stakeholders, providing commercially pragmatic legal advice and leading contract negotiations, disputes and risk management activities across the business.
About McMahon ServicesMcMahon 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.
As our business continues to grow, the Legal Team plays a critical role in supporting project delivery, managing risk and enabling commercial success.
About the RoleReporting to the Head of Legal, you will act as a trusted advisor to allocated Customer Streams, developing strong business partnerships and providing timely, commercially focused legal support.You will manage contract reviews and negotiations, advise on disputes and project claims, oversee external legal service providers and contribute to the ongoing development of legal systems, processes and compliance initiatives.
What You'll DoProvide strategic and commercially focused legal advice across the businessDraft, negotiate and review contracts, subcontracts and commercial agreementsLead contract negotiations and support project delivery teams throughout the project lifecycleManage disputes, claims, litigation and insurance matters with a focus on early resolutionReview and advise on variations,



extensions of time and contractual claimsManage external legal providers and control associated legal expenditureDevelop and deliver legal training and awareness programsSupport continuous improvement initiatives, legal compliance & risk management frameworksAssist with Board reporting and strategic legal initiatives
What You'll BringLaw degree and admission to practice law in AustraliaMinimum 6 years' post-admission experience within private practice and/or in-house legal environmentsStrong experience in contract negotiation, commercial law and dispute managementAbility to provide practical, commercially focused legal adviceExperience within construction, infrastructure, engineering, industrial or resources sectorsExcellent stakeholder engagement and communication skillsStrong organisational skills and ability to manage competing prioritiesAbility to mentor and support junior legal professionals
What Will Set You ApartExperience managing complex project disputes and claimsIn-house legal experience supporting operational business unitsStrong understanding of risk management and governance frameworks
Why Join McMahon Services?
Opportunity to collaborate closely with executive leaders and project teamsExposure to diverse and complex legal matters across multiple industriesSenior role with genuine influence on business outcomesSupportive and collaborative legal team environmentValues-driven culture focused on Reputation, Integrity, Safety and Excellence
If you're looking for a senior legal role where you can influence outcomes, partner with the business and contribute to major projects, apply now.
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 setting 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.

📌 Senior Legal Counsel (Adelaide)
🏢 Mcmahon Services
📍 Adelaide