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Fluids GSE Design Engineer III

Job in Austin, Travis County, Texas, 78701, USA
Listing for: Firefly Aerospace
Full Time position
Listed on 2026-07-01
Job specializations:
  • Engineering
    Mechanical Engineer, Systems Engineer, Aerospace / Aviation / Avionics
Job Description & How to Apply Below

Fluids Ground Support Equipment (FGSE) Design Engineer

As an end-to-end space transportation company, Firefly Aerospace is on a mission to enable our world to launch, land, and operate in space – anywhere, anytime. Our launch vehicles, lunar landers, and orbital vehicles provide government and commercial customers with full mission services from low Earth orbit to the surface of the Moon and beyond. Headquartered in north Austin, Texas, Firefly is looking for passionate, hardworking innovators to join our team and help fuel our successful trajectory into space.

Responsibilities
  • Design of ground fluid systems includes developing P&IDs, tube & pipe sizing calculations for cryogenic, multiphase, compressible & in compressible fluids, valve/fitting/component specification and selection, design for critical safety equipment, basic control philosophy for system modifications, pipe & equipment coating & insulation specification and more
  • Manage the fabrication, installation, checkout, and operation of these systems
  • Coordinate & plan fabrication/construction with GSE technician team, including but not limited to:
    • Providing P&IDs and dimensional drawings for systems
    • Generating drawings and work instructions
    • Planning/scheduling upcoming work
    • Consideration of technician feedback in the design phase
    • Provide on-the-ground support and direction to build teams
    • Coordinate with and perform work according to policy, procedures and specifications established by the Ground Support Equipment design team
    • Maintain a high level of understanding of relevant requirements, engineering codes and piping standards including launch range requirements and ASME B31.1, ASME B31.3, ANSI, API, and applicable NFPA standards
    • Participate in and lead internal design reviews, and operations readiness reviews, as well as represent Firefly during external design reviews.
    • Perform activation testing of your systems including determining test objectives, test requirements, detailed procedure writing with a focus on safety, executing test plans and procedures, and working with other teams as necessary
    • Maintain and upgrade fluid systems as necessary, including crafting preventative maintenance plans for systems & equipment
    • Troubleshoot fluid systems for nonconformance's, using the company's nonconformance reporting system to engineering instructions, i.e. dispositions and work steps
    • Travel to test and launch sites, as required, to support the company objectives
Qualifications

Required

  • Bachelors' degree in mechanical engineering, aerospace engineering, or related engineering discipline
  • Strong understanding of first-principles in fluids, heat transfer, and thermodynamics
  • Direct experience with design and build of ground systems (GSE) or related fluid systems including, but not limited to test environments, fluid or gas conditioning/storage, manufacturing processes, and compressible gasses
  • Able to prioritize and execute tasks in a high pressure, fast paced environment
  • Ability to self-motivate and take the initiative to ensure your systems are functional and operating at peak performance
  • Willingness and enthusiasm to take extreme ownership over a large or complex system
  • Experience in an aerospace, R&D, or oil & gas environment.
  • Capable of balancing detailed design tasks with higher level project management style tasks, including budgeting, scheduling, and communications
  • Capacity to organize, communicate, and lead in a multidisciplinary environment
  • 5+ years of recent experience in a professional setting outside the classroom with fluid systems, pneumatics, hydraulics or HVAC systems in a design, assembly, test, or operations capacity
  • Willingness to travel in support of GSE build and activation 30% of the time.
  • Cryogenic system design and/or operational experience

Desired

  • Experience or familiarity with building or operating distributed control systems (instrumentation, data acquisition, DCS, SCADA, etc.)
  • Strong 3D CAD experience, preferably in Siemens NX/Teamcenter
  • Experience developing test and operational procedures
  • Familiarity with ASME, NASA, and SSCMAN standards related to fluid system design
  • 7+ years of recent experience in a professional setting outside the classroom with…
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