$180,000 + Super + Performance Incentives

SWIP is a growing Western Australian contractor delivering pipeline, civil, mechanical and fabrication projects across the mining, utilities and energy sectors.

As a Triple ISO Certified contractor (ISO 9001, ISO 14001 & ISO 45001), we combine Tier 1 delivery standards with the agility and responsiveness of a growing business.

Typical projects include:

Water, wastewater and desalination infrastructure

Mine Water Management Infrastructure

Workshop Fabrication and sustaining capital works

The Chance

We're seeking an experienced Senior Estimator to lead estimating and tendering across our mining and utilities portfolio.

This is a hands‑on estimating role for someone who knows how to build first‑principles estimates, manage tenders and help win work.

Key Responsibilities

Lead estimates, tenders and proposals from enquiry to submission.

Develop accurate first‑principles estimates for labour, plant, materials and subcontractors.

Leverage industry relationships to identify opportunities and support business growth.

Build and maintain strong supplier and subcontractor networks.

Develop methodologies, qualifications, assumptions and clarification registers.

Identify commercial risks and opportunities.

Support contract negotiations and project handover.

Mentor and develop junior estimating resources.

Improve estimating systems, cost libraries and benchmarking.

About You





You are an experienced estimator with a proven track record pricing infrastructure projects across the mining, utilities or water sectors.

You will have:

7+ years estimating experience within pipelines, utilities, water infrastructure, civil or mining projects.

Strong commercial judgement and construction knowledge.

Established supplier and subcontractor relationships.

The ability to independently manage tenders from enquiry through to submission.

Highly Regarded

Water Corporation or major utilities experience.

Mine dewatering, borefield, water or tailings infrastructure experience.

HDPE, PVC and steel pipeline experience.

Existing relationships with WA utilities, mining contractors, suppliers and subcontractors.

Why Join SWIP?

Work directly with the Managing Director and help shape the future of the estimating function.

Influence how projects are priced, won and delivered – not just prepare estimates.

Drive the implementation of modern estimating systems, databases and benchmarking tools.

Join a growing contractor with genuine opportunity to progress into a broader pre‑contracts leadership role.

Competitive salary, performance incentives and flexible working arrangements.

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