Propulsion Engineer ; Spacecraft Engine Team

ABOUT FIREFLY AEROSPACE Firefly Aerospace is a space and defense technology company that enables our world to launch, land, and operate in space – anywhere, anytime. As the partner of choice for critical space missions, Firefly is the only commercial company to launch a satellite to orbit with 24-hour notice and the only company to achieve a successful Moon landing. Our launch vehicles, lunar landers, and orbital vehicles provide government and commercial customers with full mission services from low Earth orbit to 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.

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. As the partner of choice for critical space missions, Firefly is the first commercial company to launch a satellite to orbit with 24-hour notice and the first company to achieve a successful Moon landing.

Headquartered in north Austin, Texas, Firefly is looking for passionate, hardworking innovators to join our team and help fuel our successful trajectory into space.

About the Role The position of Propulsion Engineer II within the Spectre Engine team at Firefly involves leveraging creativity, ingenuity, and experience to develop hypergol engines for our Blue Ghost program. Engineers tackle complex challenges throughout the project life cycle, from design and analysis to manufacturing, testing, and operational support. Collaborating closely with other product groups, such as structures, fluid systems, and avionics, Propulsion Engineers take ownership of projects and make critical decisions.

Successful candidates will demonstrate a passion for solving challenging problems, the ability to synthesize information, and a determination to create leading-edge propulsion systems in a dynamic, fast-paced environment.

Responsibilities Serve as Responsible Engineer for in-space propulsion hardware including main and attitude control engines, valves, and propellant tanks.

Develop new and innovative design concepts for propulsion integration and operations that reduce complexity and maximize reliability within budget

Assist in the development of manufacturing, integration, and test processes, including work instructions, test procedures, development testing, and initial build support

Act as the primary point of contact for design, analysis, and operations of spacecraft fluid systems

Perform flight operations as a primary operator for fluids and propulsion systems

Own and execute development, qualification, and acceptance testing of flight hardware

Execute design for manufacturability changes to enhance production efficiency and vehicle reliability

Identify system risks and conduct corresponding trade studies to ensure successful vehicle operation

Drive development of automation and test data analysis tools

Qualifications

Required BS in Aerospace Engineering or related engineering discipline.
3+ years of experience working on an aerospace engine or fluid system

Strong engineering fundamentals in fluids, thermodynamics, and mechanics

Experience in Siemens NX or equivalent CAD program

Comprehension of design fundamentals including tolerancing, ASME Standards, ASTM, and GD&TAbility to effectively work in a multi-discipline team and provide technical guidance and insight.

Desired Qualifications Master’s Degree in Mechanical, Aerospace, or related engineering discipline.
5+ years of progressive experience in related engineering discipline

Experience with storable liquid propulsion (NTO/MMH, Hydrazine)
Experience leading technical reviews (design & analysis) or investigations (risk, anomaly, or trade studies)
Hands-on experience with integrating test articles and sub-assemblies for test or production

Prior experience working with data acquisition systems and test instrumentation including pressure transducers, thermocouples, resistance temperature detectors, flow meters, load cells, and accelerometers

Experience with end to end ownership of technical projects from conception to delivery

Strong interpersonal and organizational skills

Firefly offers outstanding benefits for our employees, including generous 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.…