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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

Department: Pacific Link

Reports to: Director,



Project Services

Worker Type: Contract

Schedule Type: Full-Time

Work Setting: In-office

Trans Mountain is seeking a team-oriented, motivated and values-driven individual to join the Pacific Link team as a Senior Estimator on full-time basis. Working within the Project Controls function, this role is accountable for developing, maintaining and assuring project cost estimates across the Pacific Link project lifecycle, from early concept and option evaluation through definition, sanction, execution readiness and delivery.

The role provides independent, evidence-based cost insight to project leaders and governance bodies by integrating scope, quantities, market intelligence, contracting assumptions, schedule, risk and contingency into transparent and decision-ready estimates. The successful candidate will also help establish durable estimating standards, tools, historical cost data and assurance practices for Pacific Link, while working closely with Engineering, Construction, Supply Chain, Finance, Risk, Scheduling, project partners, contractors and service providers.

Key Responsibilities

- Develop, coordinate, compile, integrate and maintain Class 5 through Class 3 cost estimates, incorporating and reconciling estimate inputs from engineering contractors, consultants, vendors,



partners and internal disciplines using methodologies appropriate to the maturity of project definition.
- Prepare complete estimate deliverables, including quantity take-offs, cost models, estimate workbooks, pricing summaries, basis-of-estimate documentation, assumptions, exclusions, qualifications, escalation, productivity factors and cash-flow profiles.
- Review project scope, engineering deliverables, design criteria, execution plans, schedules, contracting strategies, technical studies and vendor or contractor proposals to confirm estimate completeness, alignment and traceability.
- Work with Engineering and Construction teams to translate technical definition, constructability, sequencing, logistics, temporary works, site access and field execution requirements into credible estimate inputs.
- Lead and support estimate challenge sessions, validation reviews, benchmarking, normalization and reconciliation activities; identify differences in scope, estimate basis, pricing basis and assumptions, and clearly explain material changes, uncertainty, cost drivers and sensitivities.
- Support quantitative and qualitative risk assessment, contingency development and management reserve analysis by connecting identified risks and opportunities to potential cost and schedule outcomes.
- Provide estimating input to option selection, business cases, stage-gate and assurance reviews, funding requests, sanction decisions, change evaluations and executive or partner governance materials.
- Collaborate with Supply Chain and Commercial teams to incorporate market conditions, contracting approaches, bid information, vendor quotations, labour assumptions, commodity pricing and escalation into project estimates.
- Partner with

📌 Senior Estimator, Pacific Link (Calgary)
🏢 Trans Mountain
📍 Calgary