Pilot Plant Technician

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

• Assist engineers and other technicians to operate and monitor copper extraction chemical processes
• Safely handle chemicals, raw materials, and waste streams in compliance with SOPs and regulations
• Support sampling, quality checks, and basic laboratory measurements
• Assist with design, install, startup, and commissioning of new equipment and processes
• Take ownership of plant cleanliness and organization, ensuring work areas, tools, and equipment are well-maintained
• Perform routine maintenance, inspections, and basic mechanical repairs
• Document findings and actions in a Computerized Maintenance Management System (CMMS)
• Create and maintain procedures, experimental records, shift reports, and other critical operations documents

Requirements

• Associate degree, technical certificate, or equivalent experience in chemical technology, process technology, or industrial operations
• 3+ years of experience operating pilot plant or commercial scale industrial equipment
• Experience in minerals processing, chemicals, specialty materials, oil & gas, or biotech
• Prior exposure to core plant safety work processes such as Lockout/Tagout (LOTO), hot work permitting, and confined space entry
• Experience using human–machine interfaces (HMIs) and plant software systems
• Experience with hands-on equipment installation, modification, and troubleshooting
• Ability to climb stairs, stand for extended periods, and safely lift up to 50 lbs

Preferred Qualifications

• Basic knowledge of inorganic chemistry, pH, and reaction stoichiometry
• Experience using engineering documents such as PFDs, control narratives, or P&IDs