Propulsion Fluids Engineer II — Spacecraft Systems

Firefly Aerospace; Austin (TX); On-site; USD 85,000 - 110,000; Full time

Benefits offered by this job

Health, dental, and vision plans

Parental leave

Educational reimbursement

Short-term disability

Flexible PTO options

Job summary

Firefly Aerospace, based in Austin, Texas, is looking for a Responsible Engineer to lead the design, integration, and operation of fluid systems for its spacecraft. In this role, you will manage hardware throughout its lifecycle, from requirements definition to testing, and collaborate with cross-functional teams to optimize performance and reliability. You should have a B.S. in a relevant field and at least 3 years of experience in fluid systems engineering. Firefly offers competitive benefits including health plans and flexible PTO options.

Qualifications

• 3+ 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.
• Hands‑on experience with hardware design, fabrication, and testing.

Responsibilities

• Demonstrate full ownership of spacecraft fluid system requirements and design.
• Lead development of innovative design concepts for propulsion integration.
• Serve as the primary point of contact for spacecraft fluid systems.
• Collaborate with manufacturing and integration teams.

Skills

Fluid systems engineering

Problem-solving

Communication

Technical writing

3D CAD modeling

Python

Thermodynamics

Fluid dynamics

Education

B.S. in Mechanical, Aerospace, or related engineering discipline

Advanced degree in Mechanical Engineering or Aerospace Engineering

Tools

CAD

MATLAB

FEA

CFD

Ansys

Caesar II

Bentley Autopipe

Job description

Firefly Aerospace, based in Austin, Texas, is looking for a Responsible Engineer to lead the design, integration, and operation of fluid systems for its spacecraft. In this role, you will manage hardware throughout its lifecycle, from requirements definition to testing, and collaborate with cross-functional teams to optimize performance and reliability. You should have a B.S. in a relevant field and at least 3 years of experience in fluid systems engineering. Firefly offers competitive benefits including health plans and flexible PTO options.