Senior Estimator

Colas • Bibra Lake, Western Australia • Posted July 14, 2026

Position Overview

COLAS Australia, a leader in the Road Construction and Maintenance Industry, continues to expand its operations throughout Australia and New Zealand as a company which is now supported locally by over 700 employees, across 15 work sites in 5 states. Colas is a subsidiary of the Bouygues Group which includes over 200,000 staff worldwide.

The Role

We are seeking an experienced Senior Estimator to join our team in Bibra Lake. 
 
Reporting directly to the Regional Manager - WA, the Senior Estimator plays a critical leadership role in securing profitable projects and supporting the strategic growth of the business. This position combines technical estimating expertise with commercial leadership, stakeholder engagement, and business development, ensuring Colas continues to deliver ...