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Sr. Procurement Specialist - Process Equipment

Marianaminerals

San Francisco HQ, US$90k – $126konsite

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About this role

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, 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

WHAT YOU’LL BRING

- 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

OUR CULTURE IS BUILT ON THREE PRINCIPLES:

Everyone Gets Home Safe. We never put speed or cost ahead of people.

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!

Salary insight

The midpoint of this range ($108k) is about 46% below the median disclosed salary for San Francisco roles listed on ForgeApply ($200k across 8,633 jobs).

See full Supply Chain salary data for San Francisco →

Based on live postings with disclosed pay on ForgeApply; refreshed daily. Not an estimate of this employer's offer.

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