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

As Site Superintendent, you will be responsible for the entire build of industrial process infrastructure, from site development and ground-up civil work through installation and startup. You’ll schedule and direct trade contractors, run daily coordination meetings, resolve day-to-day construction issues, and inspect work to ensure it meets plans, specifications, and quality standards.

You’ll work closely with Construction Management, Design Engineering, Field Engineering, Process Engineering, and Operations from planning through installation, commissioning, and the start of production. Your leadership in the field will be vital to building our plants safely, on schedule, and to spec.

What You’ll Do

Site Execution & Schedule:

• Own all on-site construction for the full build of industrial process infrastructure, from mobi