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Manager Minerals Processing Engineer Jobs in California

Mariana Minerals

Materials Engineer

San Francisco, CA · On-site

$100K - $140K/yr

About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company ... Evaluate and select equipment and process configurations for pilot-scale and commercial-scale ...

New

Mariana Minerals

Staff Product Manager

San Francisco, CA · On-site

$180K - $210K/yr

PlantOS Our autonomy platform for fixed-plant mineral processing - lithium refining, SX-EW ... You may have started as an engineer and moved into product because you wanted to own the outcome ...

Mariana Minerals

Global Sourcing Manager

San Francisco, CA · On-site

$150K - $170K/yr

About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company ... process requirements, and engage credibly with engineering teams * Excellent negotiation skills ...

Leidos

Senior Signal Processing Engineer

San Diego, CA

$180K - $270K/yr

As an EW Senior Signal Processing Engineer, you will be responsible for research, design, and ... management At Leidos , we offer competitive benefits including 4 or more weeks Paid Time Off, 11 ...

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Manager Minerals Processing Engineer information

What is the difference between Manager Minerals Processing Engineer vs Minerals Processing Engineer?

AspectManager Minerals Processing EngineerMinerals Processing Engineer
CredentialsEngineering degree, professional licensure, management experienceEngineering degree, technical certifications, industry experience
Work EnvironmentSupervisory role, team management, project oversightDesign, analysis, process optimization, fieldwork
Employer & Industry UsageMining companies, processing plants, consulting firmsProcessing plants, engineering firms, research institutions

The main difference is that the Manager Minerals Processing Engineer oversees teams and projects, focusing on management and strategic planning, while the Minerals Processing Engineer concentrates on technical design, process development, and operational support. Both roles require engineering expertise, but the manager role adds leadership responsibilities.

What does a manager minerals processing engineer do?

A Manager Minerals Processing Engineer oversees the design, operation, and optimization of processes used to extract and purify minerals from ores. They manage teams of engineers and technicians, coordinate projects, and ensure that mineral processing operations are efficient, safe, and environmentally compliant. Their responsibilities also include troubleshooting plant issues, implementing new technologies, and working closely with other departments to meet production goals. This role requires a strong understanding of mineral processing techniques and leadership skills to manage both people and processes effectively.

What are some common challenges faced by a manager minerals processing engineer and how are they typically addressed?

A Manager Minerals Processing Engineer often faces challenges such as optimizing plant efficiency, managing equipment reliability, and ensuring safety and environmental compliance. These challenges are typically addressed through close collaboration with multidisciplinary teams, implementing continuous improvement initiatives, and staying updated with the latest industry technologies. Effective communication and leadership skills are vital, as the manager must coordinate with production, maintenance, and safety departments to resolve issues promptly and sustain plant performance.

What are the key skills and qualifications needed to thrive as a manager minerals processing engineer, and why are they important?

To thrive as a Manager Minerals Processing Engineer, you need a strong background in mineral processing, chemical or metallurgical engineering, and several years of industry experience, usually supported by a relevant engineering degree. Familiarity with process simulation software, laboratory and pilot plant equipment, and industry-standard safety and environmental management systems is common. Strong leadership, communication, and problem-solving skills are crucial for managing teams and optimizing operational efficiency. These skills and qualifications are essential to ensure safe, efficient, and profitable mineral processing operations while meeting regulatory and organizational standards.
What are the most commonly searched types of Minerals Processing Engineer jobs in California? The most popular types of Minerals Processing Engineer jobs in California are:
What cities in California are hiring for Manager Minerals Processing Engineer jobs? Cities in California with the most Manager Minerals Processing Engineer job openings:
Manager Minerals Processing Engineer jobs near you

Pilot Plant Technician

Mariana Minerals

San Francisco, CA • On-site

Full-time

Posted 28 days ago

Job description

About Mariana Minerals
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.
Role Overview
Mariana Minerals is looking for a highly motivated technician to join our San Francisco Pilot Plant team. You will 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
  • 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 Computerized Maintenance Management System (CMMS)
  • Create and maintain procedures, experimental records, shift reports, and other critical operations documents

What You'll Bring
  • Associate degree, technical certificate, or equivalent experience in chemical technology, process technology, industrial operations, or a related field
  • 3+ years of experience operating pilot plant or commercial scale industrial equipment in the 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 human-machine interfaces (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
Our culture is built on three principles:
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.
Join us as we build the future of responsible mineral sourcing and supply.

Apply