Senior Mechanical Design Engineer (Structures & Thermal Protection Integration)

Job description

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 and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact. Senior Mechanical Design Engineer (Structures & Thermal Protection Integration) We are seeking a Senior Mechanical Design Engineer to design and deliver critical flight vehicle structures for Castelion's long-range hypersonic strike vehicles. This role is focused on structural systems that interface with and enable the thermal protection system (TPS), including separating nose tip architectures and other high-temperature structural components. You will work hands-on with multidisciplinary engineering teams to design, analyze, build, and validate flight-critical structures in a fast-paced, hardware-driven environment. Responsibilities: - Design and develop flight vehicle structures, including separating...