Description Downer is seeking an experienced Estimator to join our Transport & Infrastructure team based in either Mackay or Townsville, to support the delivery of accurate, competitive tenders across spray seal, surfacing, asphalt and civil works. In this role you will prepare high-quality estimates and RFT/RFQ submissions, working closely with operations, sales and business development teams to secure work and build long-term client relationships. You will play a critical role in balancing commercial outcomes with safety, compliance and delivery excellence. This is an excellent opportunity for an estimator who enjoys a collaborative environment, values continuous improvement and takes pride in producing robust, first-principles estimates. Key Responsibilities Prepare accurate and timely RFT/RFQ submissions, ensuring compliance with company standards and regulatory requirements. Develop first-principles cost estimates, including take-offs, scoping and pricing inputs. Integrate supplier and subcontractor quotes into complete tender submissions. Maintain estimating databases, records and documentation. Present tenders internally for review and externally to clients where required. Liaise professionally with clients, suppliers and subcontractors. Collaborate with Sales and Account Management to prioritise bids and support business growth. Contribute to continuous improvement of estimating processes, templates and tools. Always operate in line with Zero Harm principles, WHS legislation and company values. What You’ll Bring A Bachelor’s degree in Construction Management, Civil Engineering, or a related discipline. Previous experience in estimating within civil, surfacing, spray seal or asphalt works (preferred). Proven ability to interpret drawings, perform accurate take-offs and scope works. Strong capability in first-principles estimating and cost build-ups. Experience reviewing contracts and identifying risk and opportunity. Proficiency with Benchmark Estimating (or similar software) and Microsoft Office. Strong written and verbal communication skills. High attention to detail with strong planning and organisational skills. A proactive, safety-focused mindset aligned to Zero Harm principles. Downer is a company that believes people are our greatest asset. We take pride in providing career opportunities, work-life balance, and above benchmark services. We also offer a range of benefits including: Enjoy career development opportunities, including leadership programs like Thrive and Own Career Access to Perks@Downer, which offers discounts and savings on various products, including retail items, travel deals and entertainment options. Be part of an industry-leading company committed to safety, innovation, and operational excellence Contribute to impactful projects that drive efficiency and sustainability. To join the Downer team please “apply now”. We respectfully request no recruitment agency approaches. Please be advised that email applications will not be accepted. Downer Group is an employer that acknowledges and embraces the importance of our people's diverse experiences, talents, and cultures. As an inclusive employer, we welcome applications from everyone.