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Mill Superintendent

Origin Mining Company

Golden Valley, AZ

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JOB DETAILS
JOB TYPE
Full-time
SKILLS
Analysis Skills, Capital Project, Communication Skills, Community Support, Continuous Improvement, Copper Mining, Crushing, Data Analysis, Driver's License, Environmental Compliance, Grinding, Identify Issues, Leaching, Leadership, Lift/Move 25 Pounds, Maintain Compliance, Mentoring, Metallurgy, Metrics, Microsoft Office, Mine Maintenance, Mine Operations, Mine Waste/Tailings, Mineral Processing, Mining Industry, On Call, Operations, Organizational Skills, Performance Analysis, Performance Management, Performance Metrics, Performance Tuning/Optimization, Physical Demands, Problem Solving Skills, Process Improvement, Production Planning, Rock Crusher, Safety Compliance, Safety/Work Safety, Standard Operating Procedures (SOP), Stewardship, Sustainability, Team Lead/Manager, Training Program, Trend Analysis, Water Resource Management
LOCATION
Golden Valley, AZ
POSTED
21 days ago
Title: Mill Superintendent
Manager: Mill Manager
Summary:
Origin Mining Company operates the Mineral Park copper-molybdenum mine in Arizona and is focused on responsible, sustainable resource development. We aim to lead the U.S. copper industry through strong safety practices, environmental stewardship, and operational excellence. Our team is committed to doing things the right way—acting with integrity, supporting our communities, and creating long-term value. With a hands-on, technically driven approach, we are advancing both leach and concentrator operations to produce high-quality copper and molybdenum products.

Position Overview:
The Mill Superintendent leads the safe, efficient, and reliable operation of a copper (preferred) concentrator, overseeing crushing, grinding, flotation, dewatering, and tailings systems. This role is responsible for delivering production KPIs, driving continuous improvement, and providing strong, visible leadership across the operations team while coordinating closely with maintenance, metallurgy, and mine operations.

Job Responsibilities:
  • Lead daily mill operations to meet production targets, recovery, and throughput KPIs
  • Oversee crushing, grinding, flotation, thickening, filtration, and tailings handling systems 
  • Optimize plant performance by monitoring grind size, flotation parameters (reagents, pH, airflow), and recovery metrics
  • Collaborate with metallurgical and technical teams to improve plant performance and implement process improvements
  • Ensure compliance with safety, environmental, and company standards across all operations
  • Supervise, mentor, and develop mill operations staff; ensure training completion and competency sign-offs
  • Own and manage SOPs, ensuring documents are current, followed, and continuously improved
  • Analyze production data to identify trends and drive improvements in recovery, efficiency, and cost per tonne
  • Coordinate with maintenance, mine operations, and other departments to ensure consistent feed and production plans
  • Troubleshoot operational issues across processing circuits to minimize downtime and maintain stability
  • Manage reagents and consumables, including inventory, usage optimization, and safe handling
  • Support tailings and water management systems to ensure proper operation and environmental compliance
  • Lead and support continuous improvement and capital projects related to plant and process upgrades
  • Provide accurate operational data for reporting and planning purposes

Qualifications:
  • 5–10+ years of mining experience, with at least 3–5 years in a leadership role (concentrator experience required, copper preferred)
  • Strong knowledge of mineral processing, including crushers, grinding circuits, flotation, dewatering, and tailings systems
  • Proven leadership ability with experience managing teams, meeting KPIs, and driving performance
  • Experience with SOP development, training programs, and operational standardization
  • Strong analytical, problem-solving, and organizational skills
  • Effective communicator with the ability to coordinate across departments and levels
  • Proficient in Microsoft Office and operational reporting tools
  • Bachelor’s degree in engineering or a related technical field is an asset
  • Valid driver’s license and ability to work in physically demanding outdoor environments
  • Willingness to work in a 24/7 operation, including on-call support
  • Strong commitment to safety, quality, and continuous improvement

Physical Demands: 
To be eligible for this position, an individual must possess the following requirements to perform the essential job functions:
  • Must be able to physically perform the basic life operational functions of climbing, stooping, kneeling, crouching, reaching, standing, walking on uneven surfaces, pushing, pulling, lifting, fingering, grasping, feeling, talking, hearing, and repetitive motion.
  • Ability to work both indoors and outdoors in all kinds of weather.
  • Able to operate a telephone and mine phone/radio with sufficient voice and hearing to carry on a conversation for the purpose of communicating information.
  • Able to hear sufficiently to distinguish various pitches of warning alarms.
  • Able to lift up to 25 pounds periodically.



 

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About the Company

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Origin Mining Company