Senior Propulsion Engineer

Castelion Corporation • Torrance, CA

4d

About The Position

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. Were designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and to deter future conflicts. Senior Propulsion Engineer The Senior Propulsion Engineer's primary responsibility is the design of solid rocket motor primary and secondary structures, along with propulsion components, with an emphasis on schedule, affordability and scale.

Requirements

• Bachelor's or advanced degree in aerospace engineering, manufacturing engineering, materials engineering, mechanical engineering or physics.
• 5+ years of mechanical or fluids design, analysis, or build experience (student project team, university rocketry club and internship experience counts).
• Effective communication skills are crucial for collaborating with cross-functional teams, presenting design concepts, and documenting work.

Nice To Haves

• Proficient in test methods/setups, with the ability to conduct trade studies using engineering fundamentals to make informed recommendations, even with limited information.
• Extensive experience working with aerospace materials (including metals, plastics, and composites) and a solid understanding of spacecraft and/or launch vehicle propulsion systems and fluid components.
• Skilled in CAD software (NX 8.5 or similar packages like PTC Creo, CATIA) with expertise in geometric dimensioning and tolerancing (GD&T) per ASME Y14.5-1994.
• Relevant experience with rocket motors, solid propulsion elements, and structural interfaces, including knowledge of insensitive munitions protocols and practices.
• Hold a Masters degree or PhD in a technical discipline such as mechanical or aerospace engineering.
• Hands-on experience supporting rapid product development, including designing hardware for high-rate production in alternative non-aerospace domains.
• Currently hold an active DoD Secret Security Clearance or higher.

Responsibilities

• Translate project objectives into cost-effective designs that can be produced at scale the Castelion way.
• Spearhead the creation of innovative solid rocket motor designs, demonstrating autonomy even with limited expert guidance.
• Actively engage in the assembly, testing, and troubleshooting of prototypes and production builds, providing expert guidance as necessary.
• Use our rapid iteration cycles to validate product performance and facilitate necessary design adjustments.
• Produce, evaluate, and authorize CAD models and drawings, adhering to internal standards and ASME Y14.5-2009 guidelines.
• Provide thorough assessments and resolutions for any discrepancies in hardware, including supporting analyses when required.
• Collaborate with supply chain to ensure seamless support and adapt designs to mitigate availability risks and time delays.

Benefits

• All employees are granted long-term stock incentives as part of their employment at Castelion.
• All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior