Materials Supervisor

At IEM, we’re not just building innovative electrical distribution systems, we’re shaping the future. IEM is dedicated to delivering world-class solutions for complex power needs. After 75 years, we continue to push the boundaries of what’s possible. Whether you’re an experienced professional or just starting out, you’ll have the opportunity to contribute, grow, and make a lasting impact on industries that power the world’s most dynamic markets. IEM is currently seeking a Materials Supervisor for our San Antonio, Texas location and will report into the VP of Supply Chain. This position will be based temporarily in NE San Antonio while our new manufacturing plant is coming online. Our permanent location is approximately 25 minutes away at Brooks, 7515 Inner Circle Dr., San Antonio, 78235. The position is also 100% in-office and does not offer remote work. The Materials Supervisor is responsible for supervising the day-to-day materials operations, ensuring the safe, accurate, and uninterrupted flow of materials from receipt through supermarket inventory, point-of-use replenishment, production support, WIP, and final product shipment. This role oversees the team members and daily execution needed to maintain material availability, inventory accuracy, and production support. The Materials Supervisor is expected to be a hands‑on leader who supervises daily materials activities and supports continuous improvement efforts. The role partners closely with Supply Chain, Planning, Purchasing, Production, Engineering, and Quality to resolve material constraints, support material flow, participate in Kaizen initiatives, and help maintain standardized processes that support operational excellence. Key Responsibilities Supervise daily materials management activities, including supermarket operations, receiving, inventory control, material handling, replenishment, point‑of‑use delivery, WIP, and finished‑goods material flow. Support the accuracy, availability, and flow of raw material, WIP, and finished‑goods inventories by reinforcing transactional discipline, location control, cycle counting, and corrective action. Support the implementation of standardized materials management processes aligned with production requirements. Maintain and update the Plan for Every Part (PFEP) system, including part characteristics, demand and usage, container quantities, replenishment methods, storage locations, and point‑of‑use requirements. Support the design and day‑to‑day execution of lean material replenishment systems, including Kanban, supermarkets, point‑of‑use inventory, pull systems, and milk runs. Partner with Purchasing\/Supply Chain and Planning to ensure materials are on track to support production schedules, and elevate shortages, constraints, or risks to customer commitments. Coordinate supermarket and point‑of‑use material flow, supporting continuous improvement of warehouse layout, slotting, material presentation, and replenishment efficiency. Support inventory optimization efforts that balance material availability, service levels, working capital, inventory turns, and production continuity. Participate in and help lead cross‑functional Kaizen events and structured problem‑solving activities focused on material flow, inventory accuracy, warehouse productivity, and production support. Use data and operational metrics to identify root causes and support improvement opportunities, applying tools such as A3, PDCA, 5 Why, Pareto analysis, Value Stream Mapping, and standard work as appropriate. Partner with Production Planning and Operations to monitor material availability and production progress, escalating material issues that threaten schedule attainment. Partner with the MRB, Purchasing, and Quality teams to support resolution of supplier issues, vendor return material authorizations, and material discrepancies. Support inventory control governance, in partnership with Finance, to help identify discrepancies, determine root causes, and implement corrective actions. Track and report materials KPIs, including inventory accuracy, shortages, replenishment performance, inventory turns, warehouse productivity, dock‑to‑stock performance, and material delivery to point of use. Supervise, coach, and develop materials and warehouse team members by establishing clear expectations and building accountability. Maintain a safe and healthy work environment by enforcing company policies and applicable local, state, and federal environmental, health, and safety requirements. Flexible and adaptable team player who operates with agility and resourcefulness and thrives in an often‑changing environment. You will be operating with a start‑up mindset and must be willing to help wherever needed - "not my job" is an unacceptable response. Qualifications Bachelor's degree in supply chain management, logistics, business, industrial engineering, or a related discipline; equivalent combination of education and relevant experience may be considered. 4+ years of experience in materials management, inventory control, warehouse operations, logistics, or supply chain within a manufacturing environment. 2+ years of experience supervising or leading a team in a warehouse, materials, inventory, or manufacturing environment. Experience supporting or participating in lean warehouse and material replenishment systems, including PFEP, Kanban, supermarket, pull, and point‑of‑use concepts. Experience participating in Kaizen events and structured problem‑solving efforts. Experience working with ERP/MRP systems for inventory and materials planning; SAP, Oracle, or Infor Syteline experience is a plus. APICS CPIM/CSCP, Six Sigma, or Lean Manufacturing certification is preferred. Demonstrated career ambition with a track record of growth and increasing responsibility; highly promotable with the potential to take on broader leadership roles within a fast‑paced, high‑growth organization. The future is bright at IEM. As IEM accelerates into its next phase of growth in San Antonio, we expect to create new opportunities across manufacturing, engineering, supply chain, logistics, and corporate functions. Keep an eye on our careers page to stay connected and explore the roles that will help power what’s next. Compensation actually offered for this role will take into account internal equity and also may vary depending on the candidate's geographic region, job‑related knowledge, skills, and experience among other factors. A bonus and/or long‑term incentive units may be provided as part of the compensation package, in addition to the full range of medical, financial, and/or other benefits, dependent on the level and position offered. Why Join IEM At IEM, you’ll join a team that powers some of the world’s most ambitious projects. We’re engineers, makers, and problem‑solvers who thrive on tackling complex challenges and delivering solutions that keep industries moving forward. If you’re driven, collaborative, and ready to make an impact, we’d love to hear from you. Your creativity and passion can help us achieve great things—come be part of the journey. Learn more about IEM at We offer comprehensive and competitive benefits package designed to support our employees' well‑being, growth, and long‑term success. View a snapshot of our benefits at Non-Discrimination Statement IEM does not discriminate against any applicant based on any characteristic protected by law. Privacy Information collected and processed as part of your IEM Careers profile, and any job applications you choose to submit is subject to IEM's Workforce Member Privacy Policy. Use of AI At IEM, we are committed to a fair and transparent hiring process. Use the link below to view how we use artificial intelligence (AI) technology to assist in reviewing job applications and your rights as an applicant. AI Use in IEM's Hiring Process #J-18808-Ljbffr