
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.
We are hiring a Chemical Engineering Intern to work on real, high-impact problems within the Operations team. You will contribute directly to commissioning a first-of-a-kind copper scrap recycling plant, working closely with engineers and domain experts.
This role is designed to provide hands-on experience building and shipping solutions, not just supporting tasks.
Assist in commissioning pilot equipment
Operate pilot plant to perform various process tests and performance evaluations
Collaborate with cross-functional team members including engineers and operators
Present outcomes and learnings at the end of the internship
Currently pursuing a degree in Chemical Engineering or Metallurgy
Strong fundamentals in fundamental knowledge, data recording, organization and analysis, and equipment operation/maintenance
Hands-on experience with processing equipment
Ability to break down problems and execute independently
Clear communication and willingness to learn
Willingness to work both day & night shifts with operators and engineers
At Mariana Minerals, you’ll be part of a mission-driven team reshaping the way critical minerals are sourced and supplied globally. You’ll have the autonomy to make big decisions, the tools to innovate, and a culture that values ownership, smart automation, and collaboration.
Extreme Ownership – We take full responsibility for outcomes, relentlessly driving toward solutions.
Engineer Out Requirements, then Automate – We simplify, optimize, and then automate for scale.
Share Your Legos – We collaborate openly, share knowledge, and empower each other to build bigger, better solutions.
Join us as we build the future of responsible mineral sourcing and supply.
Mariana is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status.

Mariana Minerals is a software-first, vertically integrated minerals company focused on supplying the minerals critical to modern energy, AI, and defense technologies.