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Senior Mining Engineer

Site Location

Sahuarita, Arizona, United States

Job Details

The Senior Mining Engineer is responsible for developing and managing short-, mid-, and long-range mine plans at an open-pit copper operation processing approximately 60,000 tons per day (tpd) of leach material. This role ensures optimized mining sequences, haulage, and leach cycle placements, cost-effective operations, safe working conditions, and efficient leach pad utilization, while mentoring junior staff and coordinating with operational and technical teams.

Key Responsibilities:

+ Develop and manage daily and weekly mine plans for material extraction, including designing, drill & blast sequence, haulage, and leach pad placements.

+ Monitor and reconcile operational performance against short-range plans; implement corrective actions as needed.

+ Coordinate closely with operational teams (mining, drilling/blasting, pad stacking, metallurgy) to ensure smooth execution of daily plans.

+ Prepare rolling monthly and quarterly forecasts, and annual mining budgets (tonnage, grade, stripping ratios, equipment utilization, and reagent usage).

+ Optimize pit sequencing, leach pad lift designs, haulage routes, and waste management strategies.

+ Identify and recommend operational improvements to increase productivity and cost efficiency.

+ Collaborate with Geotechnical Engineering on slope and dump stability

+ Model and steward site water/acid inventories and solution‑management infrastructure

+ Generate and regularly update life-of-mine plans based on evolving pit designs, geologic models, and economic parameters.

+ Conduct pit optimization studies using industry-standard software.

+ Provide technical analysis for strategic projects, expansions, and regulatory filings

+ Initiate Kaizen/LEAN projects that deliver quantified $/t mined savings

+ Mentor and support junior mine planning engineers, facilitating their professional growth.

+ Interface effectively with cross-functional teams, including geology, metallurgy, Mine Operations, environmental, and safety.

+ Promote and enforce high standards of safety and environmental responsibility across mine planning activities.

Requirements

Job Requirements:

+ Education & Certification: Bachelor's degree in Mining Engineering

+ Minimum 5 years' experience in open-pit mining engineering with direct experience or responsibility for short-, mid-, and long-range mine planning.

+ Specific experience in large-scale copper operations utilizing heap or dump leach processes is highly desirable.

+ Proficiency in mine planning software: MineSight/Hexagon, including Planner, MPSO and pit optimization tools.

+ Proficiency with fleet‑management/dispatch systems and data analytics tools (SQL, Python, Power BI)

+ Strong knowledge of haulage modeling software

+ Excellent analytical and problem-solving abilities with expertise in mine scheduling and cost optimization.

+ Strong interpersonal, leadership, and communication skills; capable of clearly presenting technical data to various stakeholders.

+ Comprehensive understanding of regulatory compliance

+ Commitment to a strong safety culture and responsible environmental management practices.

*All employees are subject to annual physical examinations as a condition of employment.

Our client is an equal opportunity employer. Candidates must possess a current and valid driver's license. Offers of employment are contingent upon a successful criminal background check and pre-employment physical including a drug screen.

Our client offers an excellent low-cost benefits package for medical/prescription/ dental/vision, disability coverage, life insurance and other optional coverage and 401(k) plan with company match.

Pay Type

Salaried