Propulsion Turbomachinery Engineer II/III - Design Lead

Firefly Aerospace, Inc.; Texas; On-site; USD 110,000 - 170,000; Full time

Benefits offered by this job

Unlimited PTO

Sabbatical every 5 years

Medical, dental, vision

Mental health services

Paid military leave

12 weeks maternity leave

4 weeks spouse leave

$20k family planning assistance

Dog-friendly workplace

$10k toward trade school/college

Stock bonuses

4% 401(k) matching

$10k home purchase bonus in Cedar Park

Job summary

Firefly Aerospace, Inc. is seeking a Propulsion Engineer II/III to own turbopump hardware for the Alpha launch vehicle.

You will lead design and analysis across fluid, mechanical, and thermal domains, collaborating with fabrication, integration, and test teams to ensure reliability and performance from concept through flight. You will provide subject-matter leadership on turbomachinery, drive design improvements, and support engine testing and launch operations in a fast-paced environment.

Qualifications

• B.S. in Mechanical or Aerospace engineering or related field.
• Level II (3+ years) or Level III (6+ years) experience in turbomachinery or rocket propulsion.
• Strong understanding of rotating machinery, fluid dynamics, thermodynamics, and heat transfer.
• Hands-on hardware design, fabrication, testing, and documentation experience.

Responsibilities

• Own turbopump hardware through full lifecycle from concept to flight.
• Lead design and analysis of turbopump components for reliability and manufacturability.
• Coordinate with manufacturing, quality, and other engineering teams.
• Plan and execute development, qualification, and acceptance testing; review data and resolve issues.
• Present design reviews and test readiness to stakeholders.

Skills

Strong problem solving

Excellent communication

Technical writing

Education

B.S. in Mechanical/Aerospace engineering

Tools

Siemens NX

Teamcenter

CAD tools

Python

MATLAB

LabVIEW

CFD/thermal/structural analysis

Job description

Firefly Aerospace, Inc. is seeking a Propulsion Engineer II/III to own turbopump hardware for the Alpha launch vehicle.

You will lead design and analysis across fluid, mechanical, and thermal domains, collaborating with fabrication, integration, and test teams to ensure reliability and performance from concept through flight. You will provide subject-matter leadership on turbomachinery, drive design improvements, and support engine testing and launch operations in a fast-paced environment.