Fluids Systems Engineer II — Launch & Test

firefly; Town of Texas (WI); On-site; USD 95,000 - 130,000; Full time

Benefits offered by this job

Health coverage

Dental and vision plans

Parental leave

Educational reimbursement

Short-term disability

Flexible PTO

Job summary

Firefly Aerospace seeks an FGSE Engineer to own the lifecycle of fluid systems across launch sites, test stands, and production facilities. You will design and build large fluid systems including cryogenics and high-pressure gas systems, from schematics to installation, working with technicians and cross-functional teams to ensure readiness for programs Alpha, Eclipse, Elytra, and Blue Ghost.

You’ll lead design reviews and be the technical decision-maker for meeting current and future launch

Qualifications

• Bachelor’s degree in mechanical or aerospace engineering or equivalent.
• 2–5 years of professional fluid systems experience in design, assembly, test, or operations.
• Strong understanding of fluid dynamics and thermodynamics.
• Experience with fluid components (valves, regulators, transducers, piping, tanks).
• Experience creating P&IDs and selecting components for pressurized systems.

Responsibilities

• Design, analyze, and build fluid test stands and launch pad systems (incompressible, cryogenic, high-pressure).
• Own full design cycle: schematics, BOMs, CAD drawings, procurement, drawings.
• Collaborate with technicians and welders to implement designs and solve issues.
• Lead internal and external design reviews and readiness reviews.
• Travel to test and launch sites up to 30% as needed.

Skills

Fluid systems design

P&ID drafting

Thermodynamics

3D CAD

Project management

Welding knowledge

Travel readiness

Education

Bachelor’s degree in mechanical or aerospace engineering

Tools

Siemens NX CAD

P&ID generation tools

Job description

Firefly Aerospace seeks an FGSE Engineer to own the lifecycle of fluid systems across launch sites, test stands, and production facilities. You will design and build large fluid systems including cryogenics and high-pressure gas systems, from schematics to installation, working with technicians and cross-functional teams to ensure readiness for programs Alpha, Eclipse, Elytra, and Blue Ghost.

You’ll lead design reviews and be the technical decision-maker for meeting current and future launch