Firefly Aerospace
Fluids GSE Design Engineer I
Briggs, TX · Full-time · Posted Oct 28, 2026
- Experience
- 2+ years required; 5+ years desired, with the same stated fluid systems experience areas.
- Education
- Bachelor’s degree in mechanical engineering, aerospace engineering, or a 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 U.S. Department of State authorizations under U.S. Government space technology export regulations, including ITAR.
About the job
Designs, builds, tests, operates, and maintains fluid ground support systems for Firefly’s launch sites, test stands, and production facilities.
What you'll do
- Design fluid systems, including P&IDs, pipe sizing, component selection, safety equipment, controls, coatings, and insulation.
- Coordinate and support system fabrication, installation, testing, operation, maintenance, troubleshooting, and upgrades.
- Lead or participate in design and readiness reviews; develop test objectives and procedures and support build teams and field operations.
What they ask for
- Bachelor’s degree in mechanical engineering, aerospace engineering, or a related engineering discipline.
- Strong understanding of fluids, heat transfer, and thermodynamics first principles.
- 2+ years of recent professional experience outside the classroom with fluid systems, pneumatics, hydraulics, or HVAC in design, assembly, test, or operations.
- Willingness to travel 30% of the time to support GSE build and activation.
Nice to have
- Cryogenic system design and operational experience; experience in aerospace, R&D, or oil & gas.
- Familiarity with distributed control systems, Siemens NX/Teamcenter, test and operational procedures, or relevant ASME, NASA, and SSCMAN standards.
Tools
P&IDs, ASME B31.1, ASME B31.3, ANSI, API, NFPA, Siemens NX/Teamcenter, DCS, SCADA
Model-written summary · the original posting is authoritative