Chemical Engineering Intern

Job description

About Mariana Minerals Mariana Minerals is a software-first, vertically integrated minerals company on a mission to supply the critical minerals powering modern energy, AI, and defense technologies. We’re reimagining the minerals supply chain by combining deep industry expertise with advanced software, automation, and data-driven decision-making. The Role: We are hiring a Chemical Engineering Intern to work on real, high-impact problems within the Process & Plant Engineering team. You will contribute directly to our LithiumOne project, working closely with engineers and domain experts. This role is designed to provide hands-on experience building and shipping solutions , not just supporting tasks. What You’ll Do: 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 en...