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Trans Mountain Corporation operates Canada’s only pipeline system transporting oil products to the West Coast. We deliver approximately 890,000 barrels of petroleum products each day through a dual pipeline system of more than 1,150 kilometres of pipeline in Alberta, British Columbia and Washington state.

Trans Mountain also operates a state-of-the-art loading facility, Westridge Marine Terminal, with three berths providing tidewater access to global markets.

As a federal Crown corporation, Trans Mountain continues to build on more than 70 years of experience delivering operational and safety excellence through our crude oil pipeline system.

With our expanded pipeline system now in place, Trans Mountain provides enhanced direct access for Canadian crude oil to world markets. The expansion realizes a world-class system for oil transport, developed to Canada’s high standards within one of the most stringent regulatory regimes in the world, creating long-term economic benefits, enhanced marine protection, enhanced safety and emergency management capabilities, and enhanced skilled-worker capacity building in communities and Indigenous groups.

Our Core Values

Trans Mountain’s core values – Safety, Integrity, Respect and Excellence – guide our every step. Each obstacle we’ve overcome or success we’ve experienced has been the result of a shared commitment to living these values every day. Together, we’re focused on doing the right thing for each other and our communities. If you are looking for an opportunity to apply your strengths in an environment that encourages Safety, Integrity, Respect, and Excellence, we invite you to explore this opportunity with us

Location:



Calgary Head Office

Department: Major Projects Office

Reports to: Lead, Estimating

Worker Type: Contractor

Schedule Type: Full-time

Work Setting: In Office

Trans Mountain is seeking a collaborative, motivated, and values driven individual to join our dynamic team as a Senior Estimator/Cost Engineer, Sustaining Capital. In this position, you will play a key role in supporting the development of multiple classes of estimates for ongoing projects. This role will work closely with project teams to deliver accurate and reliable cost estimates under tight timelines, leveraging available benchmarking data and integrating industry best practices to enhance accuracy and consistency. The successful candidate will demonstrate strong estimating expertise, solid project‑controls knowledge, and the ability to collaborate effectively in a fast‑paced environment.

Key Responsibilities

- Prepare estimate preparation plans and develop various classes of estimates (Class 5 through Class 3) for active projects.
- Collaborate with project managers and teams to validate scope and ensure estimates align with project objectives, and maturity of engineering deliverables.
- Participate in estimate reviews and validation sessions to maintain accuracy and reliability.




- Provide timely and accurate cost data to support decision‑making and project planning.
- Contribute to improving estimating processes and documentation where practical, though formal accountability for standards and governance is not required.
- Participate and coordinate QRA and Contingency sessions.
- Support Estimate documentation and deliverables for the Gate Reviews.

Qualifications and Professional Experience

- Post‑secondary education in Engineering, Project Management, Business Administration, or a related field.
- 8+ years of related estimating and/or cost engineering experience in pipeline infrastructure and energy related facilities.
- Experience developing and maintaining estimates throughout project development and execution phases, including estimate validation, benchmarking, forecasting, and cost performance analysis.
- Strong knowledge of project control processes, including estimating, cost management, planning and scheduling, risk, and change management.
- Proficiency in estimating software and tools, including the development of cost models and estimate workbooks.
- Strong familiarity with Stage Gate Project Delivery Model best practices.
- Strong knowledge of AACE estimate classifications and estimating techniques.
- Excellent communication (both written and verbal) and interpersonal skills with the ability to foster teamwork within the department and across.
- Strong problem‑solving abilities and sound decision‑making skills.
- Thrives under pressure, adept at managing strict deadlines and shifting priorities.
- Critical focus on accuracy and detail and works efficiently in a high‑paced, agile, energetic and multi‑task environment.

📌 Senior Estimator/Cost Engineer, Sustaining Capital (Calgary)
🏢 Trans Mountain
📍 Calgary