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 seeks a hands-on, commercially savvy Sr. Procurement Specialist – Process Equipment to drive capital project delivery by overseeing end-to-end procurement of capital equipment. This role isn’t about transactional purchasing—here, you’ll manage defined procurement scopes from strategy development through contract award and execution, directly impacting project schedules and capital efficiency.

What You’ll Do

Own Capital Procurement Workstreams

• Lead pre-award, award, and post-award contracting activities for capital equipment purchases

• Develop and execute procurement strategies aligned with project timelines and critical path needs

• Drive commercial negotiations with focus on total cost, risk allocation, and delivery certainty

• Support PO conversion, appro