Senior Estimator, Infrastructure

Ledcor • Oshawa, ON

1d • CA$116,550 - CA$155,400 • Onsite

About The Position

Ledcor is seeking an experienced Senior Estimator to join their team in Oshawa, Ontario, supporting a major GO Transit infrastructure project. This is a key leadership position responsible for overseeing all estimating activities, from conceptual budgeting and detailed cost estimates to competitive bid submissions and subcontractor procurement. Ledcor has been a leading provider of construction services in Ontario for over 30 years, with a commitment to safety, quality, integrity, sustainability, and success.

Requirements

• Bachelor's Degree in Engineering, Construction Management, Quantity Surveying, or a related field.
• Minimum 10 years of estimating and/or related construction experience.
• Proven experience working on large, complex, multidisciplinary construction or infrastructure projects.
• Demonstrated experience leading estimates from conceptual design through competitive tender submission.
• Strong proficiency with Microsoft Office Suite and industry-standard estimating software.
• Thorough understanding of modern construction methods, practices, equipment, and execution strategies.
• Strong ability to interpret and analyze construction drawings, specifications, and contract documents.
• Comprehensive knowledge of construction costs, budgeting principles, and project scheduling.
• Proven ability to manage and close complex tenders, bids, and proposals.
• Strong leadership, communication, and stakeholder management skills.
• Ability to influence decision-making and present complex information to a variety of audiences.
• Strong relationship-building skills with internal teams, subcontractors, consultants, suppliers, and clients.

Nice To Haves

• Experience within transit, transportation, civil, heavy infrastructure, rail, or major public-sector projects is considered a strong asset.
• Knowledge of Building Information Modeling (BIM) and model-based estimating is considered an asset.

Responsibilities

• Lead the preparation and coordination of comprehensive estimate packages, including quantity takeoffs, costing, subcontractor pricing, and bid submissions.
• Develop conceptual budgets, detailed estimates, cost studies, and competitive tenders for complex construction projects.
• Review drawings, specifications, terms, conditions, and bid documents to ensure all project requirements are incorporated into estimates.
• Analyze outstanding RFIs and identify appropriate bidding strategies for complex project requirements.
• Perform quantity takeoffs for large-scale projects and oversee the quantity takeoff process, ensuring accuracy and completeness.
• Lead subcontractor and supplier solicitation activities and evaluate submissions.
• Recommend subcontractors and suppliers for project award based on scope, pricing, capability, and risk assessment.
• Take ownership of estimate accuracy by reviewing and validating all direct and indirect project costs.
• Assign and manage bid package responsibilities within the estimating team.
• Review construction schedules and execution strategies to ensure alignment with estimate assumptions and project objectives.
• Lead estimate review meetings and participate in bid strategy discussions.
• Prepare bid clarifications and support proposal development for major projects.
• Provide mentorship, guidance, and technical expertise to junior estimators and cross-functional teams.
• Serve as a subject matter expert on estimating-related requirements and best practices.
• Perform other duties as assigned.

Benefits

• Compensation and benefits that support your physical, mental and financial wellbeing.
• Exciting, challenging work with opportunities to develop your skills and knowledge.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior