Storeroom Supervisor - Ripon

The Wine Group (TWG) is a leading producer of award-winning wines and alcoholic beverages across 120+ brands. With operations in California, New York and Australia, TWG is an innovator in developing and marketing brands beloved by consumers globally, including Cupcake, Franzia, Benziger, Imagery, Tribute, Chloe, Meiomi, Cooks, 7 Deadly, Cooper & Thief, and more. We produce our products using sustainable practices to create delicious beverages that people can feel good about. Visit us at www.thewinegroup.com. JOB SUMMARY The Storeroom Supervisor oversees maintenance, repair, and operations (MRO) inventory supporting all departments and maintenance functions across The Wine Group’s Ripon site. This role provides leadership, administration, control, and continuous improvement of storeroom operations and inventory management processes to ensure material availability and inventory accuracy. This position leads the storeroom team, including Storeroom Coordinators, Storeroom Attendants, and Storeroom Buyers, ensuring inventory is properly controlled, transactions are accurately recorded, and materials are readily available to support safe, reliable, and efficient plant operations. The supervisor partners closely with Maintenance, Engineering, Reliability, Planning, Procurement, Operations, Finance, and site leadership to maintain inventory integrity, optimize stock levels, and drive continuous improvement. ESSENTIAL FUNCTIONS Leadership & Team Development Lead, coach, and develop Storeroom personnel while fostering a culture of safety, accountability, customer service, and continuous improvement. Establish priorities, allocate resources, and ensure effective execution of daily Storeroom operations. Inventory Control & Financial Stewardship Ensure inventory transactions and material movements are accurately recorded within ERP and inventory management systems. Maintain accurate inventory records, investigate discrepancies, and ensure the Storeroom remains secure, controlled, auditable, and measurable. Report inventory value, performance metrics, and key findings to Finance and site leadership. Inventory Management & Material Availability Ensure that critical spare parts and maintenance materials are available to support safe, reliable, and efficient plant operations. Optimize inventory levels, supplier utilization, material master data, and stock nomenclature to balance service levels, inventory investment, and operational needs. Utilize system data, reporting tools, and analytics to drive inventory performance and decision-making. Storeroom Operations & Compliance Develop, implement, and maintain SOPs and standardized processes for Storeroom operations and inventory control. Ensure compliance with company policies, GMP requirements, safety standards, inventory control procedures, and documentation requirements, including SDSs and Certificates of Conformity where applicable. Maintain Storeroom organization, housekeeping, access controls, and visual management standards. Inventory Accuracy & Continuous Improvement Oversee cycle count programs, inventory audits, and corrective actions to maintain inventory accuracy and integrity. Lead initiatives that improve inventory accuracy, material availability, process efficiency, customer service, and cost management. Partner with Maintenance, Reliability, Engineering, Procurement, Operations, and Finance to support site objectives and continuous improvement efforts. Conduct periodic stakeholder reviews to communicate Storeroom performance, improvements, and opportunities. Additional Responsibilities Perform other duties and special projects assigned in support of facility operations. QUALIFICATIONS Required High School Diploma or GED equivalent required. 5+ years of experience in MRO inventory, storeroom, warehouse, maintenance, purchasing, or supply chain operations. 2+ years of supervisory or leadership experience. Experience with ERP/CMMS systems (JDE preferred). Strong knowledge of inventor…

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