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Mariana MineralsMariana MineralsHouston, TX

Staff Process Engineer

Leads design, operation, and optimization of pilot-scale minerals processing equipment and experiments. Bridges R&D to commercial scale with 10+ years experience in chemical/process engineering and unit operations like leaching and electrowinning.

140k – 175k/yr
On-site10+ YOEDevOps / SRE

About the role

Responsibilities

  • Lead equipment and process design from concept through procurement, fabrication, installation, commissioning, and startup
  • Operate, troubleshoot, and improve pilot-scale processing equipment in collaboration with pilot plant technicians
  • Design and execute pilot-scale experiments to evaluate process performance, recovery, throughput, and product quality
  • Develop and maintain key process documentation including PFDs, P&IDs, mass and heat balances, operating procedures, and control narratives
  • Analyze experimental and operational data to identify opportunities for process optimization and scale-up
  • Support development of automated plant monitoring and optimization tools in collaboration with software and machine learning teams
  • Ensure safe operations by supporting EHS, hazard assessments, risk management, and management of change processes

Requirements

  • B.S., M.S., or PhD in Chemical Engineering or a related field
  • 10+ years of experience in operations, process scale-up, or plant design in minerals processing, chemicals, specialty materials, oil & gas, or related industries
  • Demonstrated experience driving equipment design, commissioning, and plant operation
  • Strong understanding of relevant unit operations and equipment such as kilns, furnaces, ion exchange, solvent extraction, solid liquid separation, leaching, electrowinning, or similar technologies
  • Ability to design experiments, troubleshoot complex processes, and analyze operational datasets
  • Strong commitment to Health, Safety, and Environmental compliance
  • Excellent technical writing, communication, and teamwork skills
  • Comfortable working in fast-paced environments, wearing multiple hats, and managing ambiguity

Skills

Chemical EngineeringProcess DesignP&IdPilot Scale OperationsLeachingSolvent ExtractionIon ExchangeElectrowinningSolid-Liquid SeparationKilnsFurnacesData AnalysisProcess OptimizationEhsAutomation Tools

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