Senior Estimator - Mining

Loenbro•Gilbert, AZ

3d•Hybrid

About The Position

The Senior Estimator is a key leader within the Estimating Group, responsible for developing accurate, competitive, and comprehensive mechanical construction estimates for complex mining projects. This role oversees the entire process of bid production - including quantity takeoffs, labor and equipment analysis, material pricing, subcontractor evaluations, and risk assessments—for projects up to $75M or higher depending on scope and self‑performance. The Senior Industrial Estimator interprets mechanical drawings, piping and equipment specifications, isometrics, and contract documents to build detailed work breakdown structures and precise cost models.

Requirements

Minimum of 5+ years of experience in industrial construction estimating, with at least 2 years in a leadership role.
Ability to read Interpret P&ID, Isometric drawings and other technical schematics.
Excellent communication skills – both verbal and written.
Excellent computer skills including Microsoft Office Suite emphasis on Project Schedule and Excel Tracking.

Nice To Haves

Background in mining estimating
Bachelor’s degree in construction management, Engineering, or related discipline
Estimating experience with HCSS HeavyBid
Direct Involvement In civil, concrete, structural steel, equipment setting, and mechanical construction.
Scheduling experience with MSP or P6.
Proven ability to manage multiple complex bids simultaneously.

Responsibilities

Lead preparation of detailed estimates for projects up to $100M, considering complexity and self-performance scope.
Oversee discipline estimators on large multi-discipline RFPs.
Validate quantity take-offs and ensure accurate input into estimating software.
Apply advanced cost analysis and contingency planning for risk mitigation.
Interpret and analyze P&ID drawings and other technical documents.
Utilize HCSS HeavyBid software for accurate and efficient estimating.
Represent the estimating team in client meetings, pre-bid conferences, and negotiations.
Communicate clearly with operations, procurement, and project management teams during pre-construction.
Develop and enforce estimating procedures, including pre-estimate checklists and opportunity matrices.
Oversee bid review meetings and ensure timely submission of RFIs and proposals.
Ensure compliance with contractual requirements and company standards.
Provide pragmatic analysis of project execution to optimize efficiency and profitability.
Generate high-level cash flow projections, risk analysis reports, and resource-loaded schedules.
Support business development with conceptual estimates and ROM pricing for new opportunities.
Other duties may be assigned as needed to support business operations.