Metallurgy Lead

About Mariana Minerals

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.

What You’ll Do

• Optimize Metallurgical Processes - Monitor and improve metallurgical performance across heap leach pads, SX/EW plants, flotation circuits, and comminution areas (crushing/milling).
• Identify bottlenecks, troubleshoot issues, and implement improvements to enhance throughput and recovery.
• Design and Execute Test Program - Plan and supervise metallurgical testwork (e.g., column leach tests, flotation tests, grinding studies).
• Interpret results to support operational changes or project decisions.
• Track and Report Metallurgical Performance - Conduct routine sampling, analysis, and metallurgical accounting. Maintain accurate records of metallurgical balances, recoveries, and plant efficiency metrics.
• Prepare internal reports and contribute to monthly technical summaries.
• Collaborate Across Teams - Work with operations, maintenance, and geology teams to integrate metallurgical insights into daily decision-making. Provide input to capital projects, equipment selection, and commissioning activities.
• Champion Safety and Compliance - Promote a strong safety culture and ensure that all metallurgical work aligns with environmental, health, and regulatory standards.

What You'll Bring

• 3–7 years of experience in mineral processing, ideally with 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 and software tools such as METSIM, HSC, or similar process modeling software package.
• Strong analytical and problem-solving capabilities.
• Excellent communication skills—able to translate technical findings into actionable recommendations.
• Proactive, safety-conscious, and results-driven, with a collaborative mindset.
• Ability to thrive in a field-based, production-focused environment.