Mariana Minerals

1 week ago

Pilot Plant Technician

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 12 hours agoStatus: Live

Job Summary

Support Mariana Minerals’ San Francisco Pilot Plant team by operating and monitoring copper extraction chemical processes, performing sampling and quality checks, and handling chemicals safely under SOPs. Assist engineers with installing, commissioning, and troubleshooting new equipment and processes, while maintaining plant cleanliness and documenting procedures, experimental records, and shift reports. Conduct routine maintenance and inspections, recording findings in CMMS, and use HMIs and plant software to adjust process operation.

Location: San Francisco

Workplace: Onsite

Employment Type: Full time

Job Function: Field Service, Maintenance & Skilled Trades

Seniority: Mid level

Key Responsibilities

•Assist engineers and 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.
•Perform routine maintenance, inspections, and basic mechanical repairs; document findings in CMMS. Create and maintain procedures, experimental records, and shift reports.

Pay and Benefits

Salary: USD 40 - 50 hourly

Key Requirements

•Associate degree, technical certificate, or equivalent experience in chemical technology, process technology, or industrial operations.
•3+ years operating pilot plant or commercial scale industrial equipment in minerals processing, chemicals, specialty materials, oil & gas, biotech, or similar industries.
•Prior exposure to plant safety processes including Lockout/Tagout (LOTO), hot work permitting, and confined space entry.
•Experience using human–machine interfaces (HMIs) and plant software systems to monitor, control, and adjust process operation.
•Experience with hands-on equipment installation, modification, and troubleshooting.

Experience:3+ yearsMinerals processingChemicalsOil & gasBiotech

Education:Associate's in chemical technology, process technology, or industrial operations (or related field)

Skills:Safe work practices

Tech Stack:CMMSHMILockout/Tagout (LOTO)Hot work permittingConfined space entryPFDsControl narrativesP&IDs

Company Brief

Mariana Minerals

Software-first, vertically integrated minerals company developing extraction, processing, and automation systems to supply critical minerals (lithium and others) for energy, AI, and defense technologies, and building commercial-scale lithium facilities from produced water.

Industry: Mining & Metals

Company Size: Small (11 to 50 employees)

Growth: Early Stage Startup

Funding: Series A

Headquarters: San Francisco, United States

Website LinkedIn Glassdoor

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Mariana Minerals

1 week ago

Pilot Plant Technician

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI

Last checked: 12 hours agoStatus: Live

Job Summary

Location: San Francisco

Workplace: Onsite

Employment Type: Full time

Job Function: Field Service, Maintenance & Skilled Trades

Seniority: Mid level

Key Responsibilities

•Assist engineers and 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.
•Perform routine maintenance, inspections, and basic mechanical repairs; document findings in CMMS. Create and maintain procedures, experimental records, and shift reports.

Pay and Benefits

Salary: USD 40 - 50 hourly

Key Requirements

•Associate degree, technical certificate, or equivalent experience in chemical technology, process technology, or industrial operations.
•3+ years operating pilot plant or commercial scale industrial equipment in minerals processing, chemicals, specialty materials, oil & gas, biotech, or similar industries.
•Prior exposure to plant safety processes including Lockout/Tagout (LOTO), hot work permitting, and confined space entry.
•Experience using human–machine interfaces (HMIs) and plant software systems to monitor, control, and adjust process operation.
•Experience with hands-on equipment installation, modification, and troubleshooting.

Experience:3+ yearsMinerals processingChemicalsOil & gasBiotech

Education:Associate's in chemical technology, process technology, or industrial operations (or related field)

Skills:Safe work practices

Tech Stack:CMMSHMILockout/Tagout (LOTO)Hot work permittingConfined space entryPFDsControl narrativesP&IDs

Company Brief

Mariana Minerals

Industry: Mining & Metals

Company Size: Small (11 to 50 employees)

Growth: Early Stage Startup

Funding: Series A

Headquarters: San Francisco, United States

Website LinkedIn Glassdoor