Firefly Aerospace
Test Engineer, IV Propulsion
Briggs, TX · Full-time · Posted Oct 20, 2026
- Experience
- Minimum 5 plus years of hands-on experience with liquid rocket propulsion test operations.
- Education
- BS in Mechanical Engineering, Aerospace Engineering, Chemical Engineering, or related discipline.
- Visa sponsorship
- Must be a U.S. citizen, lawful permanent resident of the U.S., 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.
About the job
Leads hands-on hotfire testing and test operations for Spectre and other liquid propulsion systems supporting the Blue Ghost lunar lander program.
What you'll do
- Plan, integrate, conduct, and serve as test conductor for propulsion hotfire campaigns, including ground support equipment and propellant operations.
- Analyze test data and lead anomaly investigations, root-cause analysis, and corrective actions.
- Maintain safety and test documentation, coordinate with program stakeholders, and mentor junior test personnel.
What they ask for
- BS in Mechanical Engineering, Aerospace Engineering, Chemical Engineering, or a related discipline.
- Minimum 5 plus years of hands-on liquid rocket propulsion test operations experience, including planning, execution, and data analysis.
- Demonstrated experience leading or conducting liquid propulsion hotfire tests.
- Experience with propulsion and fluid systems, data acquisition and instrumentation, and test data analysis and reporting.
Tools
Python, LabView, P&IDs
Model-written summary · the original posting is authoritative