Defense hardware manufacturer scaling prototype to high-rate production
Castelion designs and manufactures defense systems, with a heavy emphasis on transitioning prototypes into scalable production. The tech stack—MATLAB, LabVIEW, Altium Designer, Teamcenter, plus industrial robotics (Rockwell, Beckhoff, Siemens, Fanuc, ABB, KUKA)—reveals a company bridging simulation and factory floor. Active adoption of MES and mTLS, combined with a 35-engineer hiring push weighted toward senior and mid-level roles, signals acceleration through a critical production ramp phase.
Castelion is a defense and aerospace manufacturer based in Torrance, California, founded in 2022. The company designs and produces specialized defense systems, with active work on hypersonic strike vehicle design, avionics qualification, and autonomous software integration. Current focus centers on scaling from prototype to production: pilot line operations, manufacturing tooling design, production process development (epoxy bonding, assembly), and regulatory compliance across high-hazard manufacturing environments. The organization spans 201–500 employees across engineering, manufacturing, operations, and quality functions, with hiring underway in the United States and Peru.
Hypersonic strike vehicle design, avionics qualification for production, autonomous software development, epoxy bonding process engineering, pilot line build-out, and zero trust security architecture. Primary challenge is transitioning these designs from prototype to high-rate, compliant production.
Design: MATLAB, LabVIEW, Altium Designer, OrCAD, Teamcenter, NX, SolidWorks. Embedded: C++, Rust, ARM, RISC-V, FPGA, PowerPC, x86. Manufacturing automation: Rockwell Automation, Beckhoff, Siemens, Fanuc, ABB, KUKA. DevOps: Azure, Jenkins, Docker. Actively adopting MES and mTLS.
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Castelion's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →
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