Chemical Engineering Intern

Mariana Minerals is a software-first, vertically integrated minerals company that is hiring a Chemical Engineering Intern to work on real, high-impact problems within the Process & Plant Engineering team.

Requirements

• Support development and refinement of process flow diagrams (PFDs) and piping & instrumentation diagrams (P&IDs) for a lithium brine extraction and purification flowsheet
• Assist with mass and energy balance modeling across key unit operations including evaporation, impurity removal, and lithium product conversion
• Conduct literature reviews and vendor engagement to evaluate reagent selection, membrane technologies, and downstream processing options
• Support preparation of engineering deliverables for feasibility and prefeasibility studies, including input to equipment sizing and capital cost estimation
• Assist with laboratory or pilot-scale test work data analysis to validate process assumptions and inform flowsheet optimization

Benefits

• On-site parking
• Free snacks
• Collaborative workspace