Pilot Plant Supervisor

About the Role

Mariana Minerals is looking for a highly motivated Operations Supervisor to join our San Francisco Pilot Plant team. You will oversee a team of high performing technicians who support the design, deployment, and operation of first-of-its-kind refining processes for critical minerals, while also supporting development of software for automated plant optimization. This position is highly hands-on and will play a critical role in bridging R&D and Operations, ensuring processes are robust, safe, cost-effective, and suitable for commercial production.

What You'll Do

• Serve as the direct lead for a team of high performing operations technicians
• Help drive performance reviews, scheduling, training, and hiring
• Collaborate with engineers, R&D scientists, and the technicians to operate and monitor mineral extraction chemical processes
• Provide off-hours support on evenings and weekends to plant upsets and high priority projects
• Create and sustain EHS programs and policies regarding chemical handling, hazard assessment, high risk activities, PPE and waste management compliance
• Ensure high-quality data capture from the plant via sampling, basic laboratory measurements, instrument uptime, and MarianaOS usage
• Own plant cleanliness and organization, ensuring work areas, tools, and equipment are well-maintained and ready for operations
• Create and maintain procedures, experimental records, shift reports, and other critical operations documents

Qualifications

• 2+ years of experience in a supervisory or lead role
• 5+ years of experience operating pilot plant or commercial scale industrial equipment in the minerals processing, chemicals, specialty materials, oil & gas, biotech, or similar industry
• Demonstrated leadership in core plant safety work processes such as Lockout/Tagout (LOTO), hot work permitting, confined space entry, and safe work permitting systems
• Experience using human–machine interfaces (HMIs) and plant software systems to monitor, control, and adjust process operation
• Experience overseeing hands-on equipment installation, modification, and troubleshooting
• Knowledge of basic process chemistry (pH, reaction stoichiometry, etc)
• Experience using engineering documents such as PFDs, control narratives, and P&IDs
• Excellent written and verbal communication skills
• Climb stairs, stand for extended periods of time, and safely lift up to 50 lbs

Our Culture

• Everyone Gets Home Safe. We never put speed or cost ahead of people.
• 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.