Materials Manager, Supply Chain

GKN Aerospace Inc
United States, Alabama, Tallassee
Feb 03, 2026
Fantastic challenges. Amazing opportunities. GKN Aerospace is reimagining air travel: going further, faster and greener! Fuelled by great people whose expertise and creativity sets the standards in our industry, we're inspired by the opportunities to innovate and break boundaries. We're proud to play a part in protecting the world's democracies. And we're committed to putting sustainability at the centre of everything we do, opening up and protecting our planet. With over 16,000 employees across 33 manufacturing sites in 12 countries we serve over 90% of the world's aircraft and engine manufacturers and achieved sales of 3.35 bn.in 2023. There are no limits to where you can take your career. Job Summary We are seeking an experienced Materials Supply Chain Planning Manager to lead site planning activities with a strong focus on Master Production Scheduling (MPS), SIOP and IBP processes, and Material Requirements Planning (MRP) implementation. This role ensures alignment of demand, supply, capacity, and operational execution to support delivery, inventory, and cost objectives while strengthening the integrity and effectiveness of planning systems. Job Responsibilities Lead, coach, and develop the Planning and Scheduling team, ensuring strong performance, effective onboarding, and alignment with GKN Aerospace culture. Own and manage weekly MPS cycles, monthly SIOP and IBP reviews, and daily shop floor scheduling to ensure feasible and capacity aligned production plans. Validate MPS feasibility by balancing capacity, inventory targets, material availability, customer requirements, and planned downtime or development activity. Drive MRP implementation, configuration, and ongoing system improvements to ensure accurate planning signals and reliable execution.Maintain accurate capacity models and ensure high quality planning data across MRP including BOMs, routings, system parameters, and master data. Partner with Integrated Program Teams to reconcile forecasts, manage customer past dues, support demand and supply balancing, and provide inputs to MPS governance meetings. Align shop floor schedules with customer demand and inventory strategies to optimize execution and operational flow.Monitor and improve planning KPIs such as Master Schedule Adherence, Customer Past Dues, and Days Inventory Outstanding. Apply PDCA, A3, and structured problem solving to address performance gaps, drive process discipline, and support continuous improvement initiatives. Provide planning metrics, capacity analysis, and master data insights for Operations Capability Reviews and other key operational forums. Job Qualifications Bachelor degree in Supply Chain, Operations, Industrial Engineering, or related field (or equivalent experience). 7 or more years of supply chain planning experience, including SIOP and IBP, MPS, production scheduling, and MRP system leadership or implementation. Expertise in forecasting, MPS and MRP, and capacity planning. Demonstrated experience implementing or enhancing MRP systems, planning modules, or enterprise resource planning integrations. Strong leadership capability, analytical skills, and cross functional communication skills. Must be a U.S. Person per ITAR regulations to comply with export compliance requirements, with ability to obtain a Department of Defense security clearance if needed. Preferred Qualifications APICS BSCM certification; APICS CPIM certification preferred Experience with Cincom Management System planning modules. Background in Lean, Continuous Improvement, and KPI driven performance management. Experience leading or participating in ERP or MRP system upgrades, implementations, or transitions. We'll offer you fantastic challenges and amazing opportunities. This is your chance to be part of an organisation that has proven itself to be at the cutting edge of our industry; and is committed to pushing the boundaries even further. And with some of the best training on offer in the industry, who knows how far you can go? A Great Place to work needs a Great Way of Working Everyone is welcome to apply to GKN. We believe that we can only achieve our ambitions through a coming together of diverse minds who enjoy collaborating in an inspirational environment. Through our commitment to diversity, inclusion and belonging and by living our five powerful principles we've created a culture where everyone feels welcome to contribute. It's a culture that won us 'The Best Workplace Culture Award'. By embracing and celebrating what makes us unique we encourage everyone to bring their full self to work. We're also committed to providing an accessible recruitment process, so if you require reasonable adjustments at any stage during our recruitment process please get in touch and let us know. We arethe place where human dreams, plus humanendeavour, shape the future of aerospace innovation and technology.