Firefly Aerospace
Propulsion Engineer I (Spacecraft Fluids)
Cedar Park, TX · Full-time · Posted Oct 8, 2026
- Experience
- 1+ years in fluid systems engineering and/or propulsion; desired: 2+ years developing launch vehicle or spacecraft propulsion systems.
- Education
- B.S. in Mechanical, Aerospace, or related engineering discipline.
- Visa sponsorship
- Must be a U.S. citizen, lawful permanent resident, protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain required authorizations from the U.S. Department of State under U.S. Government space technology export regulations, including ITAR.
About the job
Owns spacecraft fluid systems for Blue Ghost and Elytra across design, analysis, development, testing, qualification, integration, and flight operations.
What you'll do
- Own fluid system requirements, design, analysis, and technical coordination from concept through flight.
- Plan and execute hardware development and qualification testing; analyze test data and support vehicle test and flight campaigns.
- Collaborate with manufacturing and integration teams on build processes, procedures, troubleshooting, and design-for-manufacturability improvements.
What they ask for
- B.S. in Mechanical, Aerospace, or related engineering discipline.
- 1+ years of experience in fluid systems engineering and/or propulsion.
- Thorough understanding of fluid dynamics and thermodynamics; experience with tube or pipe design and layout.
- Proficiency in modeling and analysis tools (e.g., CAD, FEA, CFD, MATLAB, Python), plus hands-on hardware design, fabrication, and testing experience.
Nice to have
- Advanced degree in Mechanical Engineering, Aerospace Engineering, or equivalent field.
- 2+ years of experience developing launch vehicle or spacecraft propulsion systems; knowledge of hypergolic systems is also desired.
Tools
CAD, FEA, CFD, MATLAB, Python, Ansys, Caesar II, Bentley Autopipe
Model-written summary · the original posting is authoritative