A degree or diploma in Mechanical Engineering or Engineering is preferred but not required, or a recognized trade certification.
A Certified Welding Inspector (CWI) credential or equivalent QA/QC certification is strongly preferred.
At least 5 years of QA/QC experience in heavy industry, including experience across both greenfield construction projects and brownfield operational environments.
Thorough working knowledge of comminution circuits, material handling, and thickener/tailings infrastructure.
Strong familiarity with non-destructive examination methods, including ultrasonic testing, magnetic particle testing, penetrant testing, and radiographic testing, and the ability to interpret complex piping and instrumentation diagrams, general arrangement drawings, and isometric piping drawings.
Ability to perform the essential physical job functions, including climbing, stooping, kneeling, crouching, reaching, standing, walking on uneven surfaces, pushing, pulling, lifting, fingering, grasping, feeling, talking, hearing, and repetitive motion.
Ability to work indoors and outdoors in all kinds of weather.
Ability to operate a telephone and mine phone/radio and communicate verbally and hear conversations and warning alarms adequately.
Ability to lift up to 25 pounds periodically.
Responsibilities
Provide quality assurance and quality control oversight for greenfield installations and new plant expansions, ensuring assets are built correctly from ground up to commissioning.
Oversee quality control for brownfield tie-ins, major plant retrofits, scheduled shutdowns, day-to-day scheduled work, and replacement of aging fixed assets within the active processing facility.
Execute receiving, in-process, and final quality control inspections on heavy fixed plant equipment, including crushers, mills, screens, thickeners, slurry pumps, and conveyor systems.
Verify that mechanical, structural, and piping work conforms to engineering drawings, original equipment manufacturer specifications, and relevant industry codes, including ASME, AWS, and ISO.
Review and audit quality dossiers, Material Test Reports, Weld Procedure Specifications, non-destructive examination results, and final commissioning documentation for project handovers and operational asset records.
Desired Qualifications
Proficiency in Microsoft Office and computerized maintenance management systems or project management platforms such as SAP, Pronto, and Primavera P6.
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: We are looking for a versatile QA/QC Specialist with deep expertise in Fixed Plant Equipment to support our growing open-pit copper mining operation. This role bridges greenfield expansion projects and brownfield sustaining operations, ensuring that new installations seamlessly integrate with our existing infrastructure while maintaining uncompromising quality standards across all crushing, grinding, flotation, and material handling circuits.
Key Responsibilities:
Greenfield Project Execution: Provide QA/QC oversight for greenfield installations and new plant expansions, ensuring greenfield assets are built right the first time from ground up to commissioning.
Brownfield Integration & Sustaining Capital: Oversee quality control for brownfield tie-ins, major plant retrofits, scheduled shutdowns, day-to-day scheduled work and replacement of aging fixed assets within the active processing facility.
Inspection & Verification: Execute Receiving, In-Process, and Final QC inspections on heavy fixed plant equipment (e.g., crushers, mills, screens, thickeners, slurry pumps, and conveyor systems).
Code & Standard Compliance: Verify that all mechanical, structural, and piping works conform to engineering drawings, OEM specifications, and relevant industry codes (ASME, AWS, ISO).
Documentation & Handover: Review and audit quality dossiers, Material Test Reports (MTRs), Weld Procedure Specifications (WPS), NDE results, and final commissioning documentation for both project handovers and operational asset records.
Qualifications:
Education: A Degree or Diploma in Mechanical Engineering or Engineering is preferred but not required or a recognized Trade Certification. Certified Welding Inspector (CWI) or equivalent QA/QC certification is strongly preferred.
Experience: Minimum 5–10 years of QA/QC experience in heavy industry, with a proven track record split across both greenfield construction projects and brownfield operational environments.
Technical Expertise:
Thorough working knowledge of comminution circuits, material handling, and thickener/tailings infrastructure.
Strong familiarity with NDE methods (UT, MT, PT, RT) and the ability to interpret complex P&IDs, general arrangement drawings, and isometric piping drawings.
Operational Adaptability: Ability to navigate the fast-paced, high-pressure environment of active brownfield shutdowns alongside the rigorous milestone tracking required for greenfield project delivery.
Software Skills: Proficiency in MS Office and CMMS or project management platforms (e.g., SAP, Pronto, Primavera P6).
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.