Waterton is a private mining firm focused on the acquisition, development, and operation of mining assets globally. Waterton actively manages its portfolio through a hands‑on technical approach, supporting both operating mines and development projects with direct involvement in engineering, operational improvement, and project execution. The company currently supports an operating base metal concentrator and a large‑scale gold heap leach development project in the United States. Waterton’s technical team works closely with site operations, engineering consultants, and corporate stakeholders to optimize asset performance and advance projects through engineering, construction, and eventual operations.
About the Role The Mineral Processing Manager will support the corporate technical team in providing metallurgical and processing support across Waterton’s operating and development assets. Based in Toronto, this role will work closely with the Director of Metallurgy & Process Development to support operational performance improvement, engineering review, and metallurgical analysis activities.
The position will focus on:
Operational metallurgical support for an operating Cu/Mo flotation concentrator
Metallurgical and engineering support for a large-scale gold heap leach development project
Day‑to‑day technical support for corporate metallurgical initiatives
Cross‑disciplinary collaboration with geology, mining, engineering, permitting and finance teams
The role provides exposure to both operational improvement in an active processing plant and engineering and procurement workflows for a major development project, with future involvement in project commissioning and operating activities.




Responsibilities Operational Metallurgical Support Provide metallurgical and analytical support to improve plant performance and stability at an operating flotation concentrator.
Analyze plant performance data including recovery, grade, throughput, and operating stability
Support debottlenecking and process optimization studies
Maintain performance tracking tools and KPIs
Evaluate circuit performance including grinding, flotation, thickening, and concentrate handling
Support reagent strategy evaluation and metallurgical testwork interpretation
Participate in site visits and technical plant reviews
Assist in troubleshooting metallurgical and process related operational issues
Prepare technical reports and recommendations to support operational improvement initiatives
Development Project Metallurgical Support Support the metallurgical and process scope of a gold heap leach project during engineering and procurement.
Review process flow diagrams (PFDs), P&IDs;, equipment specifications, and vendor packages
Support metallurgical aspects of circuit design
Assist with process design validation and metallurgical testwork interpretation
Support evaluation of equipment sizing and design criteria
Participate in technical discussions with engineering consultants and vendors
Assist with identification and mitigation of metallurgical and process risks




Future development opportunities include participation in commissioning planning and operational readiness activities as the project advances.
Corporate Metallurgical Support Provide day‑to‑day technical support to the corporate metallurgy and processing function.
Preparation of technical memoranda and metallurgical summaries
Support technical due diligence and internal project evaluations
Assist with coordination and review of metallurgical testwork programs
Support preparation and organization of technical data packages
Maintain and organize metallurgical datasets and process performance information
Work closely with multiple technical and commercial groups within Waterton. Responsibilities include collaboration with:
Geology – ore characterization and variability
Mining – mine‑to‑mill coordination and feed variability
Engineering – process design reviews and equipment specifications
Permitting / Environmental – process inputs relevant to permitting and water management
Finance / Corporate Development – technical input to asset evaluations
Qualifications Bachelor’s degree in Metallurgical, Mineral Processing, or Chemical Engineering
6–10+ years of experience in mineral processing or metallurgical operations
Experience in flotation concentrators and gold heap leach operations
Strong analytical capability with plant performance data and metallurgical accounting
Familiarity with process plant design reviews and equipment specifications
Ability to work effectively across both operational and project environments
Solid written and verbal communication skills
Willingness to travel periodically to site locations in the United States

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📌 Mineral Processing Manager (Ontario)
🏢 Waterton Global Resource Management
📍 Ontario