Pilot Plant Technician - Night Shift, Automation & Ops

All Aviation Jobs; San Francisco (CA); On-site; USD 55,000 - 75,000; Full time

Job summary

Mariana Minerals in San Francisco is seeking a hands-on technician to join our night-shift team at our pilot plant. You will support the design, deployment, and operation of first-of-its-kind refining processes for critical minerals, while also assisting software development for automated plant optimization.

This role is highly hands-on and bridges R&D and operations, ensuring processes are safe, robust, and cost-effective for potential commercial production.

Qualifications

• Associate degree, technical certificate, or equivalent experience in chemical technology, process technology, industrial operations, or related field.
• Experience operating pilot plant or commercial scale equipment in minerals processing, chemicals, specialty materials, oil & gas, biotech, or similar industry.
• Prior exposure to core plant safety work processes such as Lockout/Tagout (LOTO), hot work permitting, confined space entry, and safe work permitting systems.
• Experience using HMIs and plant software systems to monitor, control, and adjust process operation.
• Experience with hands-on equipment installation, modification, and troubleshooting.
• Basic knowledge of inorganic chemistry, pH, and reaction stoichiometry a plus.
• Experience using engineering documents such as PFDs, control narratives, or P&IDs is a plus.
• Climb stairs, stand for extended periods of time, and safely lift up to 50 lbs

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 and ready for operations
• Perform routine maintenance, inspections, and basic mechanical repairs; document findings & actions in a CMMS
• Create and maintain procedures, experimental records, shift reports, and other critical operations documents

Skills

Pilot plant experience

HPIs monitoring

CMMS usage

Equipment installation

Laboratory sampling

Education

Associate degree or technical certificate

Tools

HMIs

CMMS

PFDs/P&IDs

Job description

Mariana Minerals in San Francisco is seeking a hands-on technician to join our night-shift team at our pilot plant. You will support the design, deployment, and operation of first-of-its-kind refining processes for critical minerals, while also assisting software development for automated plant optimization.

This role is highly hands-on and bridges R&D and operations, ensuring processes are safe, robust, and cost-effective for potential commercial production.