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CesiumAstro is seeking a Staff Propulsion Engineer to serve as a subject matter expert in the design, analysis, and development of launch vehicle (LV) structures and systems. This is a hands-on technical leadership role in a dynamic aerospace startup environment.
You will oversee subsystem development from concept through flight qualification, ensuring compliance with performance, safety, and reliability requirements. Key responsibilities include:
• Lead the design, analysis, and development of primary and secondary launch vehicle structures, stage interfaces, and payload accommodations
• Perform static and transient structural and thermal analysis of LV components and systems to ensure mechanical integrity under operational loads
• Develop and execute comprehensive test programs, analyze experimental data, and apply findings to optimize designs
• Prepare CAD models for FEA analysis and manufacturing
• Generate technical documentation including reports, specifications, and contributions to PDRs and CDRs
• Collaborate across mechanical, aerospace, and controls engineering teams to deliver flight-ready systems
• Mentor junior and senior engineers to build technical understanding and professional development
• Participate in mission operations, anomaly investigations, and continuous improvement initiatives
The ideal candidate combines deep technical expertise in structural and thermal design with the ability to guide and mentor engineering teams. You will work closely with an international R&D team to optimize performance and reliability of LV hardware in a fast-paced startup setting.
REQUIREMENTS:
• Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related field
• 8+ years of industry experience in aerospace design and analysis
• Expertise in Ansys tools: Mechanical, Explicit Dynamics (LS-Dyna), Linear and Nonlinear Eigenvalue Buckling, Harmonic Response, and Random Vibrations
• Proficiency in MATLAB for programming, data analysis, and optimization
• Proficiency in CAD tools (SolidWorks, NX)
• Strong foundation in systems engineering principles, requirements flowdown, and integration
• Hands-on experience with hardware development, testing, and qualification
• Strong analytical and problem-solving skills with close attention to detail
• Excellent written and verbal communication skills
PREFERRED EXPERIENCE:
• Prior experience with cryogenic systems, liquid rocket systems, and LV components
• Hands-on experience designing and improving LV hardware
• Knowledge of manufacturing and technological processes for aerospace parts
• Familiarity with aerospace safety and reliability practices
• Experience in a startup or rapid development environment
NOTE: Applicant must be a U.S. citizen, lawful permanent resident, conditional resident, asylee, or refugee, or eligible to obtain required authorizations from the U.S. Department of State.
