If you thrive on managing complex contracts, protecting commercial outcomes and driving value across major construction projects, this is an opportunity to join a team delivering infrastructure that strengthens Australia's Defence capability.
About Us
We are a national multi-billion-dollar delivery entity with the capability and resources to provide construction solutions throughout Australia. At Sitzler, we specialise in delivering unique and multifaceted projects across the Defence, civil, commercial, industrial and community infrastructure sectors. Our reputation has been built on a commitment to excellence, innovation and collaboration, delivering projects in some of Australia's most challenging environments.
From Defence and space infrastructure to major civil and commercial developments, we consistently deliver outstanding outcomes through disciplined planning, strong commercial management and exceptional people.
About the Role
Based full-time onsite at the RAAF Edinburgh in Adelaide, the Senior Contract Administrator is responsible for the commercial administration of the project, including management of head contract obligations, subcontract administration, procurement activities, cost control, forecasting and commercial reporting. The role also provides leadership and mentoring to project administration personnel while supporting the broader project leadership team in achieving successful project outcomes.
Working closely with the Project Manager and commercial team, you will be instrumental in protecting contractual entitlements, identifying risks and opportunities, maximising value recovery, and ensuring commercial compliance throughout the project lifecycle.
What We Offer
- Competitive salary package.
- Long-term project stability.
- Opportunities to work on nationally significant and career-defining projects.
- Professional development and career progression pathways.
- A collaborative and high-performing project team environment.
- Access to a well-established national contractor with a strong pipeline of future work.
- A culture built on accountability, teamwork, integrity and delivery excellence.
About You
You are a highly capable Senior Contract Administrator with extensive experience delivering major construction projects. You understand that strong commercial management extends beyond administration—it requires foresight, negotiation skills, attention to detail and the ability to influence outcomes across a diverse group of stakeholders.
To thrive in this role, you will bring:
- Bachelor's degree in Engineering, Construction Management, Quantity Surveying or related discipline
- Demonstrated experience as a Senior Contract Administrator or Contract Administrator on large-scale construction or infrastructure projects.
- Experience working on Defence head contracts will be highly regarded
- Strong knowledge of head contract administration, subcontract management and procurement processes.
- Proven experience managing variations, progress claims, extensions of time, commercial negotiations and contractual correspondence.
- Excellent commercial acumen with the ability to identify risks, opportunities and strategies to maximise project outcomes.
- Experience preparing budgets, forecasts, cash flow reporting and cost-to-complete forecasts.
- Strong stakeholder management skills and the ability to work collaboratively with clients, consultants, subcontractors and project teams.
- Exceptional negotiation, planning and problem-solving capabilities.
- A high level of attention to detail and commitment to quality outcomes.
