Lead Pyrometallurgical Process Engineer — High-Temp Refining

Mariana Minerals; Georgia; On-site; USD 140,000 - 210,000; Full time

Job summary

Mariana Minerals is seeking a Pyrometallurgical Process Engineer to lead the development and deployment of high-temperature refining and thermal processing systems. You will drive design, modeling, scaling, and commissioning of pyrometallurgical unit operations while supporting software tools for project execution and plant optimization.

You will collaborate with R&D, lab teams, and pilot plants to translate bench-scale findings into robust industrial designs, ensuring safety, reliability, and

Qualifications

• Strong understanding of engineering fundamentals.
• Foundation in chemical, metallurgical, or process engineering.
• Experience with equipment engineering and design, including brownfield and greenfield projects.
• Experience with high-temperature pyrometallurgical systems and mineral processing.

Responsibilities

• Lead pyrometallurgical process scopes from concept to ramp-up.
• Develop heat and material balances for high-temperature trains.
• Design and validate flowsheets and PFDs/P&IDs for pyrometallurgical circuits.
• Build first-principles thermodynamic and kinetic models for high-temperature reactors and furnaces.
• Model phase equilibria, slag chemistry, metal recovery, energy efficiency.
• Define specifications and operating envelopes for high-temperature equipment, burners, power systems, and gas-handling systems.
• Identify and implement process improvements to maximize metal recovery and minimize energy use.
• Collaborate with R&D, lab, and pilot-plant teams to translate findings into robust designs.
• Work with environmental and controls teams on off-gas handling systems.
• Partner with software and ML teams to automate workflows and develop digital-twin models.

Skills

Engineering fundamentals

Problem solving

Equipment design

Troubleshooting

Education

Chemical engineering / Metallurgical engineering / Process engineering degree

Job description

Mariana Minerals is seeking a Pyrometallurgical Process Engineer to lead the development and deployment of high-temperature refining and thermal processing systems. You will drive design, modeling, scaling, and commissioning of pyrometallurgical unit operations while supporting software tools for project execution and plant optimization.

You will collaborate with R&D, lab teams, and pilot plants to translate bench-scale findings into robust industrial designs, ensuring safety, reliability, and