Manufacturing Engineer, Materials Manufacturing

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 Engineer – Materials Manufacturing Castelion is seeking a hands-on Manufacturing Engineer to support and scale materials manufacturing processes used within our Ceramic Matrix Composite (CMC) production system. This role will work closely with Materials Engineering to translate material and process requirements into reliable, repeatable manufacturing methods, and with Equipment Engineering to develop the production systems needed to execute those processes at scale. The Manufacturing Engineer will own the production implementation of the process, including manufacturing methods, process controls, production readiness, technician training, troubleshooting, and continuous improvement. This role will serve as the bridge between material process development and day-to-day manufacturing execution. The ideal candidate is comfortable working across engineering disciplines and on the production floor, with a strong bias toward turning developing processes into robust manufacturing systems. Responsibilities • Own the manufacturing implementation and scale-up of materials manufacturing processes supporting CMC production. • Partner with Materials Engineering to translate material and process requirements into repeatable manufacturing methods. • Work with Equipment Engineering to define equipment requirements and support design reviews, commissioning, and production readiness. • Develop manufacturing work instructions, process controls, production documentation, and technician training. • Troubleshoot production issues and drive improvements in process capability, yield, throughput, and equipment utilization. • Develop production flow, cycle time, capacity, and staffing requirements to support increasing production rates. • Support process validation, root cause investigations, and implementation of corrective actions. • Work hands-on with technicians and engineers to continuously improve manufacturing operations. Basic Qualifications • Bachelor's degree in Manufacturing, Mechanical, Materials, Aerospace Engineering, or a related technical discipline. • 3+ years of manufacturing or process engineering experience. • Experience developing, improving, or scaling manufacturing processes. • Hands-on experience with manufacturing equipment and production troubleshooting. • Ability to translate technical requirements into practical manufacturing processes. • Strong mechanical aptitude and cross-functional communication skills. Preferred Skills and Experience • Experience with composites, ceramics, CMCs, carbon/carbon, or other advanced materials manufacturing. • Experience transitioning processes from development into production. • Experience supporting custom manufacturing equipment development, commissioning, or qualification. • Familiarity with industrial controls, sensors, automation, and manufacturing data acquisition. • Experience with process capability, DOE, SPC, or other manufacturing process improvement methods. • Aerospace, defense, semiconductor, or other high-reliability manufacturing experience. 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.