DT Infrastructure is a trusted provider of engineering and construction solutions that unlock opportunities for our clients, communities and people. Specialising in Defence, transport and infrastructure, we offer a unique synergy of local expertise in complex projects and the global perspective of our multinational parent company, Gamuda Berhad. Through engineering innovation, collaborative contracting and leading sustainability practices we’re unlocking opportunities for a better tomorrow.

About the role

DTI and our affiliate entity, Tunnelling Solutions, are seeking Senior Estimators/Estimating Manager to support the business by ensuring accurate estimates of the total cost of projects are completed on time and in accordance with required technical and company standards for DT Infrastructure and affiliate companies within Gamuda Group.

With opportunities based in Melbourne and Brisbane, this is a pivotal role for someone with a strong background in civil and rail estimating to join a talented team and deliver technically precise, commercially competitive project estimates.

Key responsibilities include:
 

• Lead and manage civil infrastructure estimates, including rail, roads, and water projects, ensuring accuracy in labour, materials, plant, and subcontractor costs.
• Develop and implement tender strategies, identify risks and opportunities, and ensure alignment with client deliverables and project objectives.
• Supervise and review take-offs, subcontractor/vendor submissions, and Requests for Information (RFI) to ensure compliance, accuracy, and technical robustness.
• Coach, mentor, and develop estimating team members, providing guidance to achieve high-quality output and consistent delivery.
• Manage estimating data, pricing models, and post-submission client clarifications, ensuring compliance with DTI policies, procedures, and statutory requirements.

About You
 

• 10+ years’ experience in civil construction estimating.
• Proven experience in rail and civil infrastructure projects, including tendering and estimating for multi-disciplinary works.
• Strong technical knowledge of detailed engineering, planning, scheduling, and construction methodologies.
• Skilled in estimating software, databases, and MS Office, able to manage large volumes of data and prepare accurate reports.
• Initiative-driven, self-motivated, and a strong team leader and communicator who can make practical, sound decisions under pressure.

Why work for DTI

• Competitive pay that reflects your contribution: We reward performance and impact, with our remuneration benchmarked to market. 
• Purpose-driven careers in infrastructure: As we grow our presence in the renewable energy sector, DTI is also continuing to cement its position as a delivery partner of choice across rail, roads and Defence infrastructure projects. Our teams benefit from the variety of opportunities, applying their skills and experience across multiple sectors. 
• Fostering your development: We’ve developed a culture where continuous learning is front and centre of everything we do. Fostering the growth and development of our people is key to our success and ensuring that we are preparing the next generation of leaders is a core focus for our business.  
• Parental leave designed for the reality of family life: Our industry leading parental leave policies are centred on flexibility to support modern family life, because at DTI, little families are a part of our one big family. 
• Flexibility that works for you and for us: We acknowledge that everyone’s needs are different in striking the right work-life integration. Whether it’s hybrid working, adjusted hours, job sharing or balancing family commitments, we’ll work together to make it work. 

DT Infrastructure is committed to building a diverse and inclusive workplace that champions opportunity and respect. Our focus on inclusivity is active and ongoing. Women, people of Aboriginal or Torres Strait Island descent and former members of the Australian Defence Force are encouraged to apply.
 

Visit www.DTInfrastructure.com.au to explore how DTI can support your career progression, unlock personal advantages and apply for our opportunities.

How to apply 
 

If you are looking to make a meaningful impact and join our team, we would love to hear from you. Please submit your updated CV online to be considered for this role or reach out to careers@dtinfrastructure.com.au.