ESTIMATOR | HEAVY CIVIL & MINING Boise, Idaho | Full-Time, Permanent

MacKay Contracting • Boise, ID

5d

About The Position

MacKay Contracting is hiring a Boise-based Estimator to develop competitive estimates and practical construction strategies for complex heavy civil, earthworks, and mining projects throughout the Western United States. The role evaluates construction methods, project risks, and opportunities, helping shape which projects the company pursues and how it prepares to deliver them.

The Estimator will work closely with experienced construction professionals, operations and field personnel, and senior leadership. Responsibilities span building complete estimates for self-performed construction, evaluating site conditions and construction approaches, developing pricing strategies, and connecting estimating decisions to field execution through reviews, constructability discussions, and project handovers. The position includes travel to project sites and industry meetings throughout the Western United States as required.

MacKay Contracting specializes in heavy civil construction, mining services, and infrastructure projects, including major earthworks, highways, bridges, mine infrastructure, utilities, and environmental work. Applicants must be authorized to work in the United States; sponsorship is not available.

Requirements

• Several years of estimating experience in heavy civil construction, earthworks, mining, or related infrastructure work.
• Experience developing complete estimates for self-performed construction, including labor, equipment, materials, subcontractors, and indirect costs.
• Practical understanding of equipment production, construction sequencing, and cost drivers.
• Ability to interpret drawings, specifications, quantities, and contract documents.
• Experience with computerized estimating systems, digital takeoff tools, and spreadsheet-based analysis.
• Ability to independently develop and present estimates, including assumptions, risks, and construction approaches.
• Authorization to work in the United States; sponsorship is not available.

Nice To Haves

• A degree in Civil Engineering, Construction Management, or a related discipline.
• Experience estimating large-scale earthworks, mine development, or mine infrastructure projects.
• Familiarity with construction markets, subcontractors, and suppliers in Idaho, Montana, or surrounding western states.
• Experience with public infrastructure procurement, private mining clients, or alternative delivery methods.
• A background in field operations, project management, or construction supervision.
• Experience developing estimates for challenging remote or logistically complex projects.

Responsibilities

• Develop complete, competitive estimates that account for realistic production rates, equipment capabilities, labor requirements, material costs, subcontractors, indirect costs, and construction methods.
• Evaluate site conditions, access, haul routes, sequencing, and alternative construction methods to develop practical construction strategies.
• Assess bidding opportunities and identify commercial and construction risks.
• Develop pricing strategies that balance competitiveness with responsible execution.
• Build relationships with regional subcontractors, suppliers, and industry partners.
• Participate in estimate reviews, constructability discussions, and project handovers with operations and field personnel.
• Independently develop and present estimates, including assumptions, risks, and construction approaches.

What This Job Offers

• Job Type: Full-time
• Education Level: No Education Listed