Manufacturing Planner – Composites

Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability. This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function. Manufacturing Planner – Composites About the Role Castelion is seeking an experienced Manufacturing Planner – Composites to build and own the integrated planning framework for our composites manufacturing organization. This role will consolidate development schedules, production requirements, material manufacturing needs, resource constraints, and inventory readiness into a single actionable manufacturing plan. You will work closely with Manufacturing Engineering, Materials Engineering, Supply Chain, technicians, and program planning to ensure development and production activities are properly prioritized and supported. The ideal candidate has experience creating structure in a fast-moving manufacturing environment and can turn multiple disconnected schedules and requirements into a clear, useful plan for execution and decision-making. Outcomes • Establish and maintain an integrated manufacturing master schedule for composites connecting development milestones, manufacturing support, material production, and part demand. • Translate program demand into executable manufacturing plans for internally produced composite materials and components. • Identify resource and capacity constraints early, including engineering, technician, equipment, and process needs. • Establish material and consumable planning controls that ensure production readiness while working with Supply Chain on inventory levels and replenishment strategies. Responsibilities • Build and maintain the master schedule for composites manufacturing activities. • Consolidate critical milestones and manufacturing requirements from Materials Engineering development schedules. • Translate program part demand into material manufacturing and production requirements. • Establish priorities and sequencing across competing development and production activities. • Track manufacturing capacity, equipment availability, engineering support, and technician loading. • Identify resource gaps and provide data to support staffing and capacity decisions. • Forecast raw material and consumable requirements based on planned production. • Work with Supply Chain to establish minimum inventory levels, reorder points, and replenishment strategies. • Initially manage and mature the material planning framework until sustainable systems and processes are established. • Track schedule risks, shortages, blockers, and changes and drive follow-up with responsible teams. • Provide clear forward-looking visibility into manufacturing readiness and upcoming resource needs. Basic Qualifications • 5+ years of experience in manufacturing planning, production control, operations planning, or a related manufacturing role. • Experience developing and managing production or manufacturing schedules in a complex environment. • Demonstrated ability to consolidate multiple schedules, requirements, and constraints into an executable plan. • Experience with material planning, inventory management, and production readiness. • Strong organizational and analytical skills with the ability to manage changing priorities. • Experience working cross-functionally with engineering, manufacturing, supply chain, and production teams. • Ability to operate independently and build processes where limited structure currently exists. Preferred Qualifications • Experience in aerospace, composites, advanced materials, or other complex manufacturing environments. • Experience supporting both development and production activities within the same manufacturing organization. • Experience with ERP/MRP, production scheduling, or capacity-planning systems. • Experience establishing inventory policies, safety stock, minimum quantities, and reorder points. • Experience performing capacity and workforce planning. • Familiarity with manufacturing environments involving internally produced materials feeding downstream part production. Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details. Other Duties Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. Additional Eligibility Requirements This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements. You will be notified if and when such requirements apply. Affirmative Action/EEO Statement Castelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law. Castelion is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. If you require a reasonable accommodation to complete an application, participate in the interview process, or otherwise participate in the hiring process, please contact hr@castelion.com. Requests for accommodation will be considered on an individual basis and handled in accordance with applicable law. Castelion is committed to fostering a workplace where employment decisions are based on qualifications, business needs, and the ability to perform the essential functions of the role, with or without reasonable accommodation. EAR/ITAR Requirements This position requires access to export-controlled information, and as such, employment (or hiring of a contractor) is contingent upon the candidate’s ability to access all applicable export-controlled information without additional export licensing being required by the Bureau of Industry and Security and/or the Directorate of Defense Trade Controls.