Principal Estimator

Company Purpose

Senior Estimator – prepare and supervise capital and operating cost estimates for national and international mining projects. Full‑time position, any Worley office location across Canada.

• Adhere to Worley’s cost estimating processes and procedures for all project maturity levels.
• Provide innovative solutions to cost estimating problems and guidance following industry norms.
• Support future benchmarking and complete estimate planning activities, establish estimating methodologies and align cost estimating principles.
• Review design scope criteria and quantities for completeness, coordinate with the project team to ensure completeness of estimating inputs.
• Compare and analyze scope, quantities and cost data between projects.
• Develop escalation model where required and assist with owners cost.
• Coordinate identification of risk areas in cost estimate compilation, evaluate appropriate contingency levels and assist with Monte Carlo type risk analysis where necessary.
• Ensure sound quality of cost estimates adhering to Worley Cost Estimating review procedures.
• Prepare and present cost estimating information to management and clients.
• Supervise and assist planners in the development and integration of individual schedules.
• Review or assist in reviewing schedule/cost engineering and material control related provisions or proposals and develop supporting data for contract negotiations.
• Provide on‑the‑job training, mentorship to subordinates and graduates.

• Professional degree in Engineering or Construction Management or equivalent qualification/experience, ideally in Engineering or Construction Management.
• Minimum 7+ years of experience in a similar role within a multi‑discipline engineering environment.
• Strong technical and practical estimating skills with a proven track record of delivering quality, accurate and timely work.
• Effective communication skills and ability to interface professionally with client stakeholders.
• Knowledge of local, international standards and statutory and regulatory requirements.
• Highly competent in MS Office® and discipline‐specific software and tools;
  Cleopatra and Aspen experience is an asset.
• Thorough technical, practical and leadership experience in project engineering and specialized estimating expertise with project planning and scheduling experience and demonstrable leadership managing a team across large‑scale, multi‑disciplinary projects.

Worley is committed to providing a fair and equitable hiring process for all applicants. Persons with disabilities will be provided reasonable accommodations. For accommodations or assistance, contact

Ready to join us? Apply now to submit your CV.