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.

Position Summary

The Process Maintenance Technician is responsible for maintaining, installing, troubleshooting, and repairing fixed plant equipment and process systems to ensure safe, efficient, and reliable operation of the processing facilities. This role supports production by minimizing downtime, maintaining equipment integrity, and ensuring compliance with safety and regulatory requirements.

The ideal candidate is safety-focused, mechanically skilled, and experienced in maintaining industrial or mining process equipment in a fast-paced, safety-sensitive environment.

Key Responsibilities

• Perform diagnostics, maintenance, installation, and repair of fixed plant equipment and associated systems, including pumps, compressors, boilers, fans, and valves.

• Conduct preventive maintenance activities such as filter changes, seal inspections, o