Sr. Procurement Specialist - Process Equipment

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.

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.

• Own Capital Procurement Work streams
• 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, approvals, and procurement system processing
• Manage Contracts & Commercial Risk
• Draft, review, and negotiate NDAs, MSAs, and equipment purchase agreements
• Coordinate change orders and commercial amendments with project teams
• Ensure documentation is structured, defensible, and audit-ready
• Drive Cost & Value
• Analyze spend data and identify cost savings or value-creation opportunities
• Foster competition in the supplier market
• Conduct commercial risk assessments to minimize supply chain and schedule risks
• Build Better Systems
• Help design scalable procurement processes as Mariana Minerals grows
• Improve cycle times and streamline sourcing and approval workflows
• Contribute to establishing a disciplined, data-driven procurement function from the ground up

• 5-7+ years of procurement experience in equipment purchasing and heavy industry
• Proven experience managing competitive sourcing processes for capital equipment
• Strong contract negotiation skills
• In-depth understanding of commercial risk allocation
• Proficiency with ERP/procurement systems and structured documentation

• 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.