Pilot Plant Operations Lead – Minerals & Automation

Mariana Minerals

San Francisco (CA)

On-site

USD 90,000 - 120,000

Full time

14 days+
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Job summary

Mariana Minerals in San Francisco is seeking an Operations Supervisor to lead a team of technicians, bridging R&D and operations while supporting the design, deployment, and operation of first-of-its-kind refining processes for critical minerals.

The role emphasizes hands-on leadership, safety, data capture, and collaboration with engineers and scientists to ensure robust, cost-effective operations suitable for commercial production.

Qualifications

  • 2+ years of supervisory or lead experience.
  • 5+ years operating pilot-plant or industrial equipment in minerals processing or related fields.
  • Experience with safety systems such as LOTO and hot work permits.
  • Experience using plant software to monitor and control processes.
  • Strong written and verbal communication skills.

Responsibilities

  • Lead a team of operations technicians.
  • Drive performance reviews, scheduling, training, and hiring.
  • Collaborate with engineers and R&D scientists to operate mineral extraction processes.
  • Provide off-hours support for plant upsets and high-priority projects.
  • Create and enforce EHS programs for chemical handling and waste management.
  • Ensure data capture via sampling, lab measurements, uptime, and MarianaOS usage.
  • Maintain plant cleanliness and organized operations area.
  • Create procedures, shift reports, and operation documents.

Skills

Supervisory experience
Plant safety leadership
HMIs & plant software
Equipment installation supervision
Process chemistry basics
Engineering docs (PFDs, P&IDs)
Excellent communication

Tools

HMIs

Job description

Mariana Minerals in San Francisco is seeking an Operations Supervisor to lead a team of technicians, bridging R&D and operations while supporting the design, deployment, and operation of first-of-its-kind refining processes for critical minerals.

The role emphasizes hands-on leadership, safety, data capture, and collaboration with engineers and scientists to ensure robust, cost-effective operations suitable for commercial production.

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