Harry Maxwell are recruiting for an experienced Senior Estimator on behalf of a well-established and growing civil construction, SMP and mining infrastructure contractor based in Perth. With long-term rolling contracts and several major projects underway, this is a great chance to join a business in a strong growth phase.

About the Role

Our client is looking for an experienced Senior Estimator to lead the pricing of complex civil construction and mining infrastructure projects across their operations. Using first-principles estimation and industry-leading software, you'll take ownership of tender strategy from opportunity through to submission — reviewing project plans, attending site visits, and building robust, auditable cost models in collaboration with clients, subcontractors and internal stakeholders.

This is a senior, client-facing role with genuine leadership scope: you'll mentor and provide quality oversight to Estimators and Junior Estimators, act as a key escalation point across the estimating function, and help shape how the business prices and wins work going forward.

Key Responsibilities

- Own timely completion of tenders and project budget submissions, including large-scale and strategically significant works
- Lead technical support to the operations team across multiple concurrent projects
- Manage the tender estimate system, ensuring models are robust, auditable, and consistently applied




- Lead and participate in tender site visits, including client-facing presentations
- Review and quality-check estimates prepared by Estimators and Junior Estimators
- Lead preparation and review of Contract Variations
- Build and maintain relationships with clients, subcontractors, builders, and suppliers
- Provide structured leadership, coaching, and development to the estimating team
- Contribute to estimating strategy, pricing benchmarks, and continuous improvement of processes and tools

About You — Essential

- Accredited qualification in Civil Engineering
- 8+ years' experience executing Civil Construction and Mining scopes of work (pipelines experience preferred), including experience delivering work as a contractor
- Demonstrated experience leading or mentoring an estimating function or team, including review and sign-off of others' estimates
- Demonstrated track record securing and delivering large-scale or complex civil/mining tenders
- Advanced working knowledge of Microsoft Project, Excel, Word, and Outlook
- Strong business acumen, negotiation skills, and stakeholder management ability
- Strong leadership, supervision, and team management skills

About You — Desirable

- Corporate membership with an Australian Engineering Peak Body (e.g. AusIMM, Engineers Australia)
- Advanced working knowledge of Candy (RIB CCS)

📌 Senior Estimator (Perth)
🏢 Harry Maxwell
📍 Perth