5-7 years of experience in process engineering, preferably in mineral processing or chemical production.
Strong foundation in chemical or metallurgical engineering with practical application of engineering principles.
Experience with both brownfield and greenfield project modifications and designs.
Familiarity with large-scale mining and mineral processing techniques, including hydrometallurgy and pyrometallurgy.
Proven ability to manage cross-functional teams and external partners effectively.
Responsibilities
Lead the development of chemical refining processes from concept to operational handover.
Manage relationships with external equipment providers and engineering firms to ensure project integration.
Create heat and material balances for mineral refineries to optimize production.
Develop Process Flow Diagrams (PFDs) and Piping & Instrumentation Diagrams (P&IDs) for projects.
Build first-principles models for chemical reactors to validate designs.
Identify and implement engineering solutions to enhance process performance under varying conditions.
Collaborate with software teams to automate project workflows and optimize plant operations.
Benefits
Opportunity to work on critical minerals supply chain supporting energy transition.
Engagement in cutting-edge technology and AI applications.
Collaborative work environment with cross-functional teams.
Potential for professional growth in a rapidly evolving industry.
Full Job Description
Role Overview
Mariana Minerals is looking for a highly motivated Sr./Staff Process Engineer to work on building the critical minerals supply chain to support the world's energy transition and to supply metals necessary for technology and AI, energy, mobility, and defense.
As a Sr./Staff Process Engineer at Mariana Minerals, you will lead the development and deployment of state-of-the-art chemical refining processes, while also supporting development of software for capital project execution and automated plant optimization. Responsibilities will include leading process area and equipment scopes from concept through to design, installation, commissioning, ramp, and handover to the operations team.
What You'll Bring
Lead process area and equipment scopes from concept and modeling validation, through procurement, engineering, fabrication, installation, commissioning, and ramp
Manage external equipment providers, technology licensors, and engineering companies to deliver fully integrated and functional mineral refining scopes.
Build heat and material balances for integrated mineral refineries
Develop Process Flow Diagrams (PFDs) and Piping & Instrumentation Diagrams (P&IDs) for mineral refineries
Build first-principles-based models of chemical reactors and unit operations to validate and scale-up designs
Identify, evaluate, and implement engineering solutions to optimize process designs, confirming functionality and performance under various operating conditions
Work closely with cross-functional teams including lab technicians, pilot plant engineers, process engineers, project execution teams, and more to scale designs from lab through to commercial scale
Work closely with the software and machine learning teams to automate capital project execution workflows and develop equipment and plant optimization algorithms
What You'll Bring
Strong understanding of engineering fundamentals and demonstrated ability to leverage this understanding to solve challenging problems
Strong foundation in chemical engineering, metallurgical engineering, or process engineering, with demonstrated ability to apply engineering fundamentals to complex systems
Experience with plant & equipment engineering and design. Including but not limited to:
Brownfield modifications and upgrades
Greenfield design
Evaluation and optimization of operating facilities
Experience with the following industries and/or production environments:
Industrial manufacturing
Large-scale mining or mineral processing, particularly across hydrometallurgy, electrometallurgy, and pyrometallurgy
Large-scale chemical production processes
Engineering, procurement, and construction (EPC/EPCM) firms
