Product Manager, Mineral Processing

Product Manager, Mineral Processing

Location: San Francisco, CA (with flexibility for travel and hybrid work)

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.

Our culture is grounded in three core principles:

• Extreme Ownership – We take full responsibility for outcomes, relentlessly driving toward solutions.

• Engineer Out Requirements, then Automate – We simplify, optimize, and then automate for scale.

• Share Your Legos – We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.

The Role

We are seeking a Product Manager – Mineral Processing to lead Mariana’s software-first approach to mineral processing across copper, nickel, and lithium.

In this role, you’ll be accountable for outcomes, not just features—identifying opportunities to optimize performance across the full technology stack, from sensors to ML-driven process control. Success will require blending user research, processing experience, and first-principles problem solving to engineer out inefficiencies, surface insights, and empower smarter decision-making.

You’ll work cross-functionally with engineers, metallurgists, machine learning experts, and operators to ensure we’re always prioritizing around value creation.

What You’ll Do

• Own the product vision for software-enabled mineral processing solutions across copper, nickel, and lithium projects.

• Identify optimization opportunities spanning sensors, automation, and ML-driven process control.

• Conduct user research with operators, metallurgists, and engineers to design impactful solutions.

• Partner with stakeholders to surface process data in formats that drive better, faster decisions.

• Engineer out non-value-added work by simplifying and automating workflows.

• Prioritize initiatives across multiple stakeholders based on measurable value.

Must Have

• Engineering background (hydrometallurgy or process engineering preferred).

• Strong first-principles problem solving ability.

• Demonstrated user research experience.

• 5+ years of relevant experience in product management, engineering, or related technical roles.

Nice to Have

• Mineral processing experience (especially copper, nickel, or lithium—fast track consideration).

• Track record of working with machine learning engineers, software engineers, data scientists, and data engineers.

Why Join Us?

This is a rare opportunity to sit at the intersection of metallurgy, software, and product development in an industry ripe for reinvention. At Mariana Minerals, you’ll shape the tools and systems that make critical minerals production smarter, safer, and more efficient—directly impacting the global energy transition, AI infrastructure, and defense supply chains.