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Marianaminerals

Sr. Procurement Specialist - Construction

Houston, TX

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Role family
Supply chain
Seniority
Senior
Country
US
Work mode
On-site / unstated
First seen by hirly
1 Sept 2026

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the posting

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 is looking for a hands-on, commercially strong Sr. Procurement Specialist to support capital project delivery across construction services. This role is not transactional purchasing — you will own defined procurement scopes end-to-end, from strategy through contract award and execution, and directly impact project schedule and capital efficiency.

What You'll Do

Own Capital Procurement Workstreams

Lead pre-award, award, and post-award contracting activities for capital construction packages

Develop and execute procurement strategies aligned with project schedules and critical path activities

Drive commercial negotiations focused on total cost, risk allocation, and delivery certainty

Support PO conversion, approvals, and procurement system execution

Manage Contracts & Commercial Risk

Draft, review, and negotiate NDAs, MSAs, and construction work orders

Manage change orders and commercial amendments in coordination with project teams

Ensure documentation is structured, defensible, and audit-ready

Drive Cost & Value

Analyze spend and identify savings or value-creation opportunities

Support competition in the supplier market

Conduct commercial risk assessments to reduce schedule exposure

Build Better Systems

Help design scalable procurement processes as the company grows

Improve cycle times and reduce friction in sourcing and approvals

Contribute to building a disciplined, data-driven procurement function from the ground up

What You'll Bring

5–7+ years of procurement experience in heavy industry, capital construction, infrastructure, or industrial projects

Experience leading competitive sourcing processes for construction

Strong contract negotiation skills

Clear understanding of commercial risk allocation

Proficient with ERP/procurement systems and structured documentation

Our culture is built on four 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!

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Sr. Procurement Specialist - Construction at Marianaminerals — hirly