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.

Role Overview

Mariana Minerals is looking for an Engineering Manager to build and lead a team of software engineers working on the critical minerals supply chain that supports the world's energy transition.

Our software team builds MarianaOS, the operating system for how Mariana engineers, constructs, and operates its mines and mineral processing facilities. The work spans capital projects, plant operations, autonomous equipment, and the data systems that connect them. Our users are our own project engineers, construction teams, and operators at our copper site in Moab, Utah and lithium facility in East Texas. That creates an unusually short feedback loop: what your team ships can change what happens on the ground within days.

As an Engineering Manager, you will own the performance and growth of your engineers and the team's ability to deliver reliably. You'll be responsible for 1:1s, feedback, performance reviews, career development, hiring, compensation input and advocacy, and del