Mariana Minerals
Procurement Manager, Chemicals & Fuels
$150K–$170K
San Francisco HQ +1 · On-site · Manager · Full-time · Posted Jul 22, 2026
- Location
- San Francisco HQ
Houston, TX - Experience
- 8-12+ years.
- Education
- Bachelor's degree in engineering, materials science, chemistry, or a related technical field; equivalent technical depth through experience may be considered.
About the job
Own procurement for new projects and pre-operational sites, from defining sourcing requirements and qualifying vendors through contract execution, first delivery, and handoff to site teams.
What you'll do
- Run end-to-end procurement, including RFQs, competitive bids, negotiations, purchases, and first deliveries.
- Source operating supplies, consumables, and non-construction capital spend; support complex purchases at operating sites.
- Coordinate vendor relationships and supply continuity, lead cross-site sourcing events, and contribute pricing and supplier data.
What they ask for
- Bachelor's degree in engineering, materials science, chemistry, or a related technical field; candidates without a degree may demonstrate equivalent technical depth through experience.
- 8-12+ years of procurement, project procurement, or capital purchasing experience in mining, industrials, chemicals, or a related sector.
- Track record owning pre-operational or greenfield site procurement from specification to first delivery.
- Technical ability to read specifications and engage with engineering teams; strong negotiation, organization, and software-tool proficiency.
Pay
$150K – $170K (base salary)
Model-written summary · the original posting is authoritative