Metallurgy Lead

About the Company

Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making.

Responsibilities

• Optimize metallurgical performance across heap leach pads, SX/EW plants, flotation circuits, and comminution areas
• Identify bottlenecks, troubleshoot issues, and implement improvements to enhance throughput and recovery
• Plan and supervise metallurgical testwork including column leach tests, flotation tests, and grinding studies
• Conduct routine sampling, analysis, and metallurgical accounting
• Maintain accurate records of metallurgical balances, recoveries, and plant efficiency metrics
• Collaborate with operations, maintenance, and geology teams to integrate metallurgical insights into daily decision-making
• Promote a strong safety culture and ensure compliance with environmental, health, and regulatory standards

Requirements

• 3–7 years of experience in mineral processing
• Exposure to both hydrometallurgical and flotation circuits
• Strong understanding of heap leach dynamics, SX/EW systems, flotation chemistry, and comminution fundamentals
• Skilled in metallurgical test design, data analysis, and performance optimization
• Experience with metallurgical modeling software such as METSIM or HSC
• Strong analytical and problem-solving capabilities
• Ability to thrive in a field-based, production-focused environment