AstroTalentSpace Jobs

Director, Propulsion Engineering Verified today

Firefly Aerospace · Texas · Propulsion · first seen 2026-07-16
Apply at Firefly Aerospace →

About Firefly Aerospace

Firefly Aerospace is a space and defense technology company on a mission to reliably and repeatedly launch, land, and operate space systems from Earth to the Moon and beyond. Headquartered in north Austin, Texas, Firefly was the first commercial company to launch a satellite to orbit with 24-hour notice and the first to achieve a successful Moon landing.

The Role

The Propulsion Director provides technical and organizational leadership for the design, development, test, qualification, and operation of propulsion systems across Firefly's launch vehicles and spacecraft. You will be accountable for multiple engine and fluid system programs spanning early architecture trades through flight operations.

As a vertically integrated company with co-located design, fabrication, and test facilities, you are expected to be deeply engaged in hardware development while setting a clear technical vision and execution strategy. You will balance hands-on technical depth with people leadership, thrive in a fast-paced development environment, and drive a culture of rigorous testing, ownership, and continuous improvement.

The propulsion engineering department spans launch vehicle engines, spacecraft propulsion, vehicle fluid systems, valve design, and propulsion analysis teams.

Your Responsibilities

  • Set and own the technical vision, strategy, and execution of all propulsion and fluid systems programs across launch vehicles and spacecraft
  • Lead, develop, and grow a multidisciplinary propulsion organization of approximately 100 engineers, fostering technical excellence, accountability, and professional growth
  • Maintain ownership of propulsion hardware and systems across the full lifecycle, from requirements definition and architecture trades through qualification, flight, and operations
  • Serve as a senior technical authority for propulsion and fluid systems, supporting major design reviews, test readiness reviews, anomaly resolution, and flight readiness activities
  • Collaborate closely with discipline chief engineers, vehicle chief engineers, and cross-functional teams including structures, avionics, software, manufacturing, integration, quality, and test
  • Drive propulsion system performance, reliability, cost, and manufacturability through disciplined design practices and data-driven decision making
  • Ensure robust risk identification, mitigation, and closure through analysis, testing, and operational feedback
  • Oversee development, qualification, and acceptance testing of propulsion components, subsystems, and engines, with an emphasis on learning-oriented testing
  • Contribute directly to new engine and propulsion technology development, providing technical insight and guidance where needed
  • Establish and uphold engineering standards, best practices, and compliance with applicable industry and government requirements

Required Qualifications

  • B.S. in Mechanical Engineering, Aerospace Engineering, or a related technical field
  • 8 or more years of experience in the design, development, and test of aerospace propulsion and/or fluid systems
  • 5 or more years of experience leading engineering teams, with demonstrated success delivering complex hardware programs
  • Strong technical foundation in propulsion system design, fluid dynamics, combustion, turbomachinery, thermodynamics, and thermal systems, with demonstrated ability to apply first principles to arrive at simple, robust solutions
  • Demonstrated experience owning hardware from early concept through testing, qualification, and operation
  • Hands-on experience driving performance, reliability, or design-for-manufacturability initiatives
  • Deep understanding of cryogenic and storable propellant systems
  • Working knowledge of relevant aerospace standards and requirements (e.g., SMC-S-016, SMC-S-025)
  • Working knowledge of manufacturing, fabrication, integration, and quality control relevant to fluid components such as machining, inspection, assembly, and testing
  • Knowledge of fluid components such as valves, regulators, pressure transducers, tubing, pressurized hardware, seals, and instrumentation, and experience performing fluid systems sizing analysis
  • Proven ability to rapidly develop solutions with partially defined or evolving requirements
  • Excellent written and verbal communication skills, with the ability to represent propulsion programs to internal and external stakeholders

Desired Qualifications

  • Advanced degree in Mechanical Engineering, Aerospace Engineering, or equivalent field
  • Extensive experience developing and operating liquid rocket engines, launch vehicles, or spacecraft
  • In-depth knowledge of cryogenic, high-pressure, or high-temperature system operations
  • Experience with fluid system subcomponent or pressurized component development, design, or testing such as valves, regulators, piping systems, and pumps
  • Familiarity with multiple engine cycle architectures such as gas generator, staged combustion, or full-flow staged combustion
  • Proven ability to build and sustain a high-performing engineering culture centered on ownership, learning, and execution
  • Demonstrated experience with full hardware lifecycle ownership, from blank-sheet design through full operation
  • Demonstrated passion for advancing propulsion technology and integrating emerging capabilities into an executable roadmap

Employment

Firefly offers health, dental, and vision plans with low plan deductibles, parental leave, educational reimbursement, short-term disability, and flexible PTO options.

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.