ABOUT US
The Duratec-Ertech Joint Venture (DEJV) is a specialist Defence infrastructure delivery partnership with a strong track record in delivering major infrastructure works at HMAS Stirling, Western Australia’s premier naval base. Building on this experience, DEJV has been engaged to deliver several significant infrastructure projects supporting AUKUS, representing a once‑in‑a‑lifetime opportunity to contribute to Australia’s future Defence capability.

ABOUT THE ROLE
We are currently recruiting for an experienced Commercial Manager to join our Duratec-Ertech Joint Venture (DEJV) supporting our long-term major infrastructure construction scopes in Rockingham, WA. As the Commercial Manager, you will be responsible for leading all commercial, contractual, and procurement activities across the project, ensuring strong financial performance, effective risk management, and successful project delivery. The person appointed to this role will be employed by Ertech and seconded to the Duratec-Ertech Joint Venture. Other

key responsibilities
include, but not limited to:
• Lead all commercial, contractual, and financial aspects of the project to maximise performance and profitability.
• Provide commercial advice to project leadership on contract obligations, risks, entitlements, and project strategy.
• Manage project forecasting, cost control, cash flow, revenue, and margin reporting.
• Lead the preparation and administration of claims, variations, extensions of time, and commercial close-out activities.
• Oversee subcontract procurement and contract administration from tender through to completion.
• Identify and mitigate commercial risks while driving opportunities for cost savings and improved project outcomes.
• Ensure contractual compliance, governance requirements, and accurate commercial reporting are maintained.
• Build and maintain strong relationships with clients, subcontractors,



suppliers, and key stakeholders.
• Lead, mentor, and develop the project commercial team, fostering accountability and collaboration.
• Partner with project delivery teams to support informed commercial decision-making and successful project delivery. To be successful, you will have experience and demonstrate capability in the following:
• 5+ years' experience as a Commercial Manager leading teams.
• Tertiary qualification in quantity surveying, construction management, engineering, law, commerce or a related discipline.
• Experience delivering large construction, infrastructure, or defence projects.
• Proven experience administering complex head contracts and major subcontract packages through delivery and close-out.
• Strong contract negotiation, administration, and risk management experience.
• Ability to obtain and maintain a security clearance (essential).
• Ability to obtain and maintain a National Police Clearance (essential).
• White Card (CPCWHS1001)
• Australian Defence background (highly regarded). WHY JOIN ERTECH?
• Competitive remuneration, including a site allowance and PIP
• Metro-based project – enjoy the benefit of being home every night
• Full-time position offering stability and annual leave entitlements
• Supportive, team-oriented culture where collaboration and respect are valued
• Play a key role in shaping the growth and success of our projects
• Career development and progression opportunities, annual performance development plans.




• Access to great perks, including:
• Discounted Private Health Insurance (HBF & Medibank)
• Annual flu vaccinations
• Novated leasing options through Paywise
• Service recognition and milestone rewards
• Employee Referral Program incentives
• Employee Assistance Program (EAP) for you and your family. OUR CULTURE At Ertech, our people are fundamental to our success. We're focused on creating an inclusive workplace, with the right people in the right roles, who are engaged, empowered, and appropriately rewarded. Ertech will provide you with the chance to be a part of great team, meet new people and gain experience with an industry leader who puts safety first. DIVERSITY & INCLUSION We value the unique backgrounds, experiences, and perspectives of all people and actively encourage applications from First Nations peoples, all genders, culturally and linguistically diverse individuals, people with disability, LGBTQIA+ community members, and veterans of the Australian Defence Force. Ertech is a proud Veteran Employment supporter. We recognise the valuable skills and leadership that veterans bring to our industry and welcome their applications at all levels of the business. Even if you don’t meet every requirement listed, we encourage you to apply and bring your strengths to our team.

HOW TO APPLY
Click "Apply" on this job advertisement, which will direct you to Ertech's application portal. Simply follow the steps outlined on the portal to complete your application. This is an incredible opportunity If you are looking for a position in an environment in which you can flourish whilst building your career, there is no better time to join the Ertech Team than now *Please note: This role is being sourced through Ertech directly and we will not accept applications via external recruitment agencies.

📌 Commercial Manager (Perth)
🏢 Ertech
📍 Perth