About the role
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