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Procurement Manager
Procurement ManagerMariana Minerals • San Francisco, CA, United States
Procurement Manager

Procurement Manager

Mariana Minerals • San Francisco, CA, United States
[job_card.variable_days_ago]
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  • [job_card.full_time]
[job_card.job_description]

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

We are hiring a Procurement Manager to build and lead Mariana's procurement capabilities across projects and operating sites. This role is focused on establishing procurement systems, processes, and standards that support efficient, compliant, and coordinated purchasing.

In this role, you will ensure that our projects and operating sites have the supplier agreements, procurement tools, and commercial processes needed to succeed. You will define how procurement should operate across the organization, partnering closely with teams to ensure procurement supports both near-term execution and long-term strategy.

What You'll Do

  • Serve as the central procurement expert for the organization, building and owning procurement standards and processes in partnership with Finance, Capital Projects, Engineering, and Operations
  • Lead procurement for new projects and support procurement at operating sites, with a focus on indirect spend and long-term supplier agreements
  • Shape and validate procurement functionality within the ERP system, ensuring tools and workflows support purchasing needs across the organization
  • Define and maintain procurement policies, templates, and documents that make supplier engagements consistent, efficient, and scalable
  • Prepare concise, well-structured documents and presentations for internal stakeholders and external partners

Desired Qualifications

  • Bachelor's degree in business, supply chain management, engineering, or a related field
  • 3-6 years of experience in procurement or supply chain in industrials, manufacturing, or materials
  • Strong negotiation skills, with a proven record of securing favorable agreements with suppliers
  • Experience building procurement processes, standards, and systems with the ability to learn new tools quickly
  • Strong organizational and project management skills, with ability to balance multiple priorities and deadlines
  • Excellent communication skills across levels and functions, including working with suppliers, site teams, and leadership
  • Comfort working in a fast-paced, resource-constrained startup environment with shifting priorities
  • Why Join Us?

    At Mariana Minerals, you'll be part of a mission-driven team reshaping the way critical minerals are sourced and supplied globally. You'll have the autonomy to make big decisions, the tools to innovate, and a culture that values ownership, smart automation, and collaboration.

    Our culture is built on three principles :

    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.

    Mariana is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected status.

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