Castelioncorporation Senior Propulsion Engineer to design and deliver rocket motor nozzles for hypersonic strike vehicles. Responsible for thermal and structural analyses, material selection, test campaigns, and mentoring junior engineers.
Responsibilities
Design and develop rocket motor nozzle components, including interfacing hardware, high-temperature environment-performing ablatives and insulators, adhesives, and metallic housings.
Lead the architecture and detailed design of propulsion hardware to meet performance, structural, and thermal requirements
Perform thermal and structural analyses to ensure performance and durability under high-temperature, high-pressure environments
Develop and optimize material selections and formulations in collaboration with materials and manufacturing teams
Work closely with propulsion, structures, and manufacturing teams to ensure seamless integration of soft goods with overall motor design
Support material processing, fabrication, and quality control of soft goods components
Plan and execute test campaigns, including subscale and full-scale motor testing, and analyze results to drive design improvements
Conduct failure analysis and root cause investigations related to insulation performance, erosion, cracking, or debonding
Mentor junior engineers and contribute to best practices in soft goods design and processing
Partner closely with program leadership to make technical trades aligned with mission success
Qualification
Bachelor'sExperience with propulsion testingSkilled in CAD software (NX 8Experience with hardware buildStrong problem-solving mindsetNonlinear FEAAerospaceExperience working with compositesAdditional Requirements
Required
Bachelor's, Master's, or PhD in Aerospace Engineering, Mechanical Engineering, or related field
5+ years of experience in rocket propulsion design, analysis, and testing for aerospace or defense applications
Strong background in solid rocket motor design, including internal ballistics, grain design, and nozzle performance
Experience with propulsion testing, including static fire test setup, instrumentation, and data analysis
Familiarity with structural and thermal design considerations for high-temperature, high-pressure systems
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.
Proficiency in analysis and modeling tools (e.g., MATLAB, Abaqus, or equivalent)
Experience with hardware build, integration, and troubleshooting in a lab or test environment
Strong problem-solving mindset, thriving in a fast-paced, hardware-rich, high test cadence environment
Preferred
Nonlinear FEA, including contact, material nonlinearity, or large deformation.
Experience correlating analytical models with physical test data.
Experience characterizing material mechanical properties in severe environments including hyperplastic materials, compression molded composites, tape-wrapped composites, etc.
Aerospace, hypersonic, launch vehicle, spacecraft, or other high-performance flight hardware experience.
Experience establishing engineering standards or methodologies.
Demonstrated ability to mentor and develop engineers technically.
Experience working with composites, coatings, finishes, and advanced manufacturing processes for common SRM nozzle components.