McMahon Services is seeking an experienced Estimator – Environmental Services to join our team.

This is a great opportunity for an estimator who enjoys variety and wants to work across a broad mix of technically challenging projects, including civil construction, demolition, asbestos and hazardous materials removal, and environmental remediation.

Working closely with operational teams, subcontractors, suppliers and internal stakeholders, you’ll help develop accurate estimates, practical methodologies and competitive tender strategies from initial RFX review through to project handover.

About McMahon Services

McMahon Services is one of Australia’s largest privately owned construction, industrial and environmental services organisations, employing more than 1,200 people across Australia.

Our Environmental Services capability supports complex projects across remediation, hazardous materials, demolition and associated civil works. We combine strong technical capability with practical project delivery experience to develop solutions that are safe, commercially sound and fit for purpose.

About the Role

Reporting to the General Manager, you’ll support the preparation and delivery of tenders across a diverse portfolio of Environmental Services projects.

You’ll review tender documentation, prepare take-offs and first-principles estimates, coordinate subcontractor and supplier pricing, develop cost schedules and contribute to construction methodologies and tender strategy.

You’ll also work closely with the broader team to identify risks, opportunities and value-engineering options, helping position submissions for successful outcomes.

What You’ll Do

• Review RFX and tender documentation and identify estimating requirements.
• Prepare material take-offs and support first-principles estimates.
• Develop RFQs and engage subcontractors and suppliers for pricing.
• Prepare cost plans, commercial schedules and basis of estimates.
• Contribute to construction methodologies and tender documentation.
• Identify risks, opportunities and alternative delivery approaches.
• Support value-engineering and cost optimisation initiatives.
• Maintain and utilise historical estimating and cost data.
• Participate in tender governance and commercial reviews.
• Support successful bid handovers to project delivery teams.
• Review estimating work and provide guidance to the broader team where required.
• Build strong relationships with internal stakeholders, subcontractors and suppliers.

What You’ll Bring

• Minimum 2–3 years’ estimating experience within construction, civil, demolition, asbestos/hazardous materials or a related environment.
• Experience estimating multidisciplinary projects.
• Practical construction site experience.
• Strong understanding of first-principles estimating and project cost drivers.
• Good commercial and numerical capability.
• Strong attention to detail and problem-solving skills.
• Experience with estimating systems such as Benchmark, Expert Estimation, CostX or similar.
• Strong communication and stakeholder relationship skills.
• Formal or informal qualification in Engineering, Estimating, Cost Management or a related discipline.
• Current Driver’s Licence and White Card.

What Will Set You Apart

• Experience estimating asbestos or hazardous materials removal projects.
• Exposure to environmental remediation or contaminated land projects.
• Civil and/or demolition estimating experience.
• Strong understanding of construction methodology and productivity.
• Experience contributing to tender strategy and value engineering.
• Ability to identify issues early and develop practical solutions.
• A flexible, team-focused approach and the ability to manage competing tender deadlines.

Why Join McMahon Services?

• Work across a broad mix of environmental, remediation, demolition and civil projects.
• Gain exposure to technically challenging and multidisciplinary tender opportunities.
• Work closely with experienced operational and project delivery teams.
• Build your commercial and estimating capability across a diverse project portfolio.
• Contribute to process improvement, value engineering and smarter tender outcomes.
• Genuine long-term career development opportunities.
• Access ongoing professional development through the MAC Learning Academy.
• Join one of Australia’s leading privately owned construction companies.

Ready for Your Next Opportunity?

If you’re an Estimator looking for greater project variety and the opportunity to broaden your experience across environmental, civil, demolition and hazardous materials work, we’d like to hear from you.

Apply today and join McMahon Services.

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 environment 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.