Senior Mine Planning Engineer – Copper Open Pit

Asarco Llc; Marana (AZ); On-site; USD 140,000 - 190,000; Full time

Job summary

ASARCO LLC in Arizona seeks a Senior Mining Engineer to develop and manage mine plans for an open-pit copper operation averaging about 65,000 tons per day to support leaching activities.

You will optimize sequences, haulage, and leach pad placement, enforce safety and environmental standards, mentor junior staff, and collaborate with geology, metallurgy, operations, and environmental teams to deliver cost-efficient results.

Qualifications

• Bachelor’s degree in Mining Engineering.
• 7+ years' experience in open-pit mining with short-, mid-, and long-range mine planning.
• Experience in large-scale copper heap/dump leach operations is highly desirable.
• Proficiency in Hexagon Mine Plan, Mine Plan Activity Scheduler, MPSO, and pit optimization tools.

Responsibilities

• Develop and manage daily and weekly mine plans for material extraction, including drill & blast sequencing, haulage, and leach pad placements.
• Monitor and reconcile performance against short-range plans; implement corrective actions as needed.
• Coordinate with mining, drilling/blasting, pad stacking, and metallurgy teams for smooth daily plan execution.
• Prepare rolling monthly/quarterly forecasts and annual mining budgets (tonnage, grade, stripping ratios, equipment utilization).
• Optimize pit sequencing, leach pad lift designs, haulage routes, and waste management strategies.
• Mentor junior mine planning engineers and collaborate with geology, metallurgy, operations, environmental, and safety teams.

Skills

Mine scheduling

Cost optimization

Leadership

Regulatory compliance

Education

Bachelor’s degree in Mining Engineering

Tools

Hexagon Mine Plan

Mine Plan Activity Scheduler

MPSO

Pit optimization tools

SQL

Python

PowerBI

Fleet-management systems

Job description

ASARCO LLC in Arizona seeks a Senior Mining Engineer to develop and manage mine plans for an open-pit copper operation averaging about 65,000 tons per day to support leaching activities.

You will optimize sequences, haulage, and leach pad placement, enforce safety and environmental standards, mentor junior staff, and collaborate with geology, metallurgy, operations, and environmental teams to deliver cost-efficient results.