Procurement Manager, Chemicals & Fuels

The role

The Procurement Manager will own procurement for new projects and pre-operational sites. You will work across engineering, operations, and commercial functions to translate project needs into executed contracts and manage operating supplies, consumables, and non-construction capital spend.

What you will do

• Work with engineering and technical teams to define procurement requirements
• Own end-to-end pre-operational procurement including vendor qualification, RFQ, and contract negotiation
• Procure operating supplies, consumables, and non-construction capital spend
• Ensure contracts are reviewed for policy compliance and enterprise-level alignment
• Own vendor relationships through the pre-operational phase
• Support on-site procurement on complex purchases and high-value negotiations
• Lead cross-site consolidation sourcing events to identify volume-based savings
• Contribute quote data and supplier information to the pricing and market intelligence database
• Coordinate across site and project teams to ensure continuity of supply

Required qualifications

• Bachelor's degree in engineering, materials science, chemistry, or a related technical field
• 8-12+ years of experience in procurement, project procurement, or capital purchasing in mining, industrials, chemicals, or a related sector
• Proven track record of owning pre-operational or greenfield site procurement from spec to first delivery
• Strong technical background with the ability to read specifications, understand process requirements, and engage with engineering teams
• Excellent negotiation skills
• Highly organized with the ability to manage multiple concurrent procurement workstreams
• Comfortable operating with ambiguity and limited structure
• Proficient with software tools for project tracking, workstream management, and reporting

Nice to have

• Candidates without a degree who can demonstrate equivalent technical depth through experience

About the company

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.