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 Mining Engineering Intern to work on real, high-impact problems within the Process & Plant Engineering team. You will contribute directly to our CopperOne 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 execution of mine planning workflows including pit optimization, production scheduling, and resource classification

• Assist with building and documenting standardized engineering workflows to improve consistency and efficiency across the mine planning team

• Identify opportunities to automate repetitive tasks using scripting tools (e.g., Python, VBA, or mine planning software APIs) and support implementation

• Compile and QA/QC technical inputs including topographic data, drill hole databases, and resource block models

• Contribute to the preparation of technical reports and study deliverables in support of NI 43-101 or SK-1300 reporting requirements

Desired Qualifications

• Currently pursuing a B.S. or M.S. in Mining Engineering, with coursework in mine design, geostatistics, or resource estimation

• Familiarity with mine planning software (e.g., Leapfrog, Vulcan, Datamine, or similar) is preferred

• Basic programming skills in Python or similar language; interest in applying automation to engineering workflows

• Strong organizational skills and comfort working with large technical datasets

• Interest in critical minerals, lithium, or early-stage project development is a strong asset

Why Join Us?

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.

Our culture is built on three principles:

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.