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 highly motivated Warehouse & Logistics Coordinator to join our San Francisco Pilot Plant team. You will be responsible for overseeing shipping & receiving, maintaining operations of the SF warehouse spaces, and helping build out Mariana’s logistics programs & processes. This position plays a critical role in bridging R&D and Operations, ensuring our facilities are robust, safe, cost-effective, and suitable for commercial production.

What You’ll Do

• Coordinate inbound and outbound shipments of raw materials, finished materials, samples, spare parts, consumables, and other plant and R&D materials

• Receive packages and materials, verify deliveries, inspect for accuracy or damage, and ensure items are routed to the correct storage location or end user.

• Physically move, stage, rearrange, and organize materials in warehouses and plant using forklifts, pallet jacks, or other warehouse equipment.

• Help develop spare parts and consumables management systems including storage locations, labeling, reorder points, and usage tracking.

• Coordinate inventory tracking for in-spec materials, off-spec materials, spare parts, consumables, and process development supplies

What You’ll Bring

• Experience in logistics, warehouse operations, inventory coordination, materials management, or related roles.

• Hands-on experience working in an industrial, manufacturing, warehouse, or plant operations environment.

• Ability to safely operate or learn to operate forklifts, pallet jacks, and other warehouse equipment.

• Experience receiving materials, coordinating shipments, tracking inventory, or managing warehouse storage areas.

• Experience using software such as ERP, CMMS, MES, and/or similar tracking tools.

• Ability to coordinate activities across operations, maintenance, engineering, vendors, carriers, and commercial teams.

• Practical problem-solving mindset with a willingness to improve systems while also performing hands-on warehouse work.

• Ability to climb stairs, stand for extended periods of time, and safely lift up to 50 lbs.

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.