Mariana Minerals

4 months ago

Sr. Pyrometallurgical Process Engineer

✓ Verified Job

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

Source: Company careers pageValidated by: Fursa AI

Last checked: 5 hours agoStatus: Live

Job Summary

Pyrometallurgical Process Engineer to lead high-temperature refining and thermal processing systems in a software-enabled minerals company. You will design, model, scale, and commission pyrometallurgical unit operations, develop software tools for capital projects, and collaborate with R&D, pilot plants, and environmental teams to optimize metal recovery and energy efficiency.

Location: San Francisco, Houston

Workplace: Onsite

Employment Type: Full time

Job Function: Industrial, Process & Manufacturing Engineering

Key Responsibilities

•Lead pyrometallurgical process scopes from early concept development and thermodynamic modeling through procurement, detailed engineering, fabrication, installation, commissioning, and ramp-up.
•Develop detailed heat and material balances for high-temperature process trains, including drying, calcination, roasting, reduction, smelting, converting, slag cleaning, refining, and off-gas treatment.
•Design and validate thermal process flowsheets and PFDs/P&IDs for pyrometallurgical circuits, ensuring safety, reliability, and scalability.
•Build first-principles thermodynamic and kinetic models for high-temperature reactors and furnaces to support scale-up and commercial deployment.
•Collaborate closely with R&D, lab teams, and pilot-plant engineers to translate bench- and pilot-scale findings into robust commercial pyrometallurgical designs

Pay and Benefits

Salary: USD 130,000 - 160,000 annually

Equity and Bonus:Equity

Key Requirements

•Strong foundation in chemical engineering, metallurgical engineering, or process engineering, with demonstrated ability to apply fundamentals to complex pyrometallurgical systems.
•Experience with equipment engineering and design, including brownfield upgrades and greenfield design of hydrometallurgical unit operations and integrated circuits.
•Experience with engineering, procurement, and construction (EPC/EPCM) firms supporting mining and mineral processing projects.
•Ability to lead pyrometallurgical process scopes from concept through procurement, detailed engineering, fabrication, installation, commissioning, and ramp-up.
•Ability to build first-principles thermodynamic and kinetic models for high-temperature reactors and furnaces to support scale-up and commercial deployment

Experience:MiningMetallurgyPyrometallurgyBattery materials

Skills:Problem-solvingCollaborationLeadership

Tech Stack:ThermodynamicsPFDP&IDDigital twinMachine learningAutomation

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

4 months ago

Sr. Pyrometallurgical Process Engineer

✓ Verified Job

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

Source: Company careers pageValidated by: Fursa AI

Last checked: 5 hours agoStatus: Live

Job Summary

Location: San Francisco, Houston

Workplace: Onsite

Employment Type: Full time

Job Function: Industrial, Process & Manufacturing Engineering

Key Responsibilities

•Lead pyrometallurgical process scopes from early concept development and thermodynamic modeling through procurement, detailed engineering, fabrication, installation, commissioning, and ramp-up.
•Develop detailed heat and material balances for high-temperature process trains, including drying, calcination, roasting, reduction, smelting, converting, slag cleaning, refining, and off-gas treatment.
•Design and validate thermal process flowsheets and PFDs/P&IDs for pyrometallurgical circuits, ensuring safety, reliability, and scalability.
•Build first-principles thermodynamic and kinetic models for high-temperature reactors and furnaces to support scale-up and commercial deployment.
•Collaborate closely with R&D, lab teams, and pilot-plant engineers to translate bench- and pilot-scale findings into robust commercial pyrometallurgical designs

Pay and Benefits

Salary: USD 130,000 - 160,000 annually

Equity and Bonus:Equity

Key Requirements

•Strong foundation in chemical engineering, metallurgical engineering, or process engineering, with demonstrated ability to apply fundamentals to complex pyrometallurgical systems.
•Experience with equipment engineering and design, including brownfield upgrades and greenfield design of hydrometallurgical unit operations and integrated circuits.
•Experience with engineering, procurement, and construction (EPC/EPCM) firms supporting mining and mineral processing projects.
•Ability to lead pyrometallurgical process scopes from concept through procurement, detailed engineering, fabrication, installation, commissioning, and ramp-up.
•Ability to build first-principles thermodynamic and kinetic models for high-temperature reactors and furnaces to support scale-up and commercial deployment

Experience:MiningMetallurgyPyrometallurgyBattery materials

Skills:Problem-solvingCollaborationLeadership

Tech Stack:ThermodynamicsPFDP&IDDigital twinMachine learningAutomation

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