Job Description

Martinus Group is a 100% Australian-owned and operated rail construction company working on some of the globes largest rail infrastructure projects. We are a company that focuses on finding people who are the right fit into our company culture as much as having the right skills and experience. We encourage learning, experimentation, and out-of-the-box thinking, and we know that fun is a vital element of an engaged and productive workplace. We value the importance of balance between work and family life and promote this philosophy throughout the company.

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With a strong reputation across the rail infrastructure sector, we are now looking for an experienced Senior Estimator to join our growing team and play a key role in securing and delivering landmark projects across the country.

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This is an opportunity to work within a high-performing pre-contracts team on large-scale civil infrastructure tenders where you will be contributing to projects from concept through to award.

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The Prospect

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Reporting to the Pre-Contracts Manager, the Senior Estimator will lead and coordinate estimating activities across major infrastructure bids, ensuring competitive, accurate, and commercially sound submissions.

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You will work closely with engineering, construction, procurement, and commercial teams to develop robust pricing strategies and methodologies for complex projects across the rail infrastructure sector.

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Key Responsibilities

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- Lead end-to-end estimating activities for major civil infrastructure tenders
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- Prepare detailed first-principles estimates, cost plans, and pricing strategies
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- Analyse drawings, specifications, methodologies, and contractual requirements
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- Coordinate subcontractor and supplier pricing submissions
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- Identify project risks, opportunities, and value engineering initiatives
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- Develop construction methodologies and staging assumptions in collaboration with delivery teams
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- Participate in tender reviews, adjudications, and client presentations
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- Maintain estimating databases, benchmarks, and cost histories
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- Mentor and support junior estimators within the team
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To succeed in this role, you will bring:

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- Extensive estimating experience within major civil infrastructure projects
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- Strong background across large-scale projects such as rail, roads, major civil
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- Proven capability preparing complex multi-disciplinary tenders in a major projects environment
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- High-level understanding of construction methodologies, productivity rates, and commercial drivers
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- Experience with first-principles estimating and estimating software platforms
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- Strong analytical, negotiation, and stakeholder management skills
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- Ability to work under pressure and manage multiple concurrent tender
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- Tertiary qualifications in Engineering, Construction Management, Quantity Surveying, or a related discipline
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📌 Senior Estimator (Victoria)
🏢 Martinus Group
📍 Victoria