Principal Fluid Systems Engineer

Job Description

ABOUT FIREFLY AEROSPACE 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 SUMMARY The Fluid Systems team at Firefly Aerospace is responsible for all fluid subsystems across our launch vehicles and spacecraft including our Blue Ghost Lunar Lander and Eclipse Launch Vehicle As a Principal Propulsion Engineer youll own the design development integration test and qualification of flight fluid systems Working closely with engineering manufacturing and integration teams to iterate answer questions and close feedback loops This role blends deep technical ownership with cross functional collaboration serving as both an individual contributor and a technical mentor The ideal candidate thrives in fast paced hardware rich environments embracing new challenges with grit creativity and accountability Were looking for engineers who are excited to roll up their sleeves and help define the future of space transportation RESPONSIBILITIES Own and lead the full lifecycle development of flight fluid systemsfrom concept through launch and operation Develop architectures that improve reliability simplify manufacturing and reduce cost and schedule risk Define system requirements and interface definitions for propulsion pressurization venting purging filldrain and other fluidic subsystems Execute detailed designs using CAD and analytical tools and coordinate closely with thermal structural systems and integration teams Oversee qualification and acceptance test campaigns including procedure development test execution and data review Lead technical risk trades anomaly investigations and corrective actions across engineering and production Mentor early career engineers and provide technical reviews of hardware designs analysis and test plans Serve as the discipline owner in program architecture discussions and influence long term roadmap for in space servicing and reusability QUALIFICATIONS Required Bachelors degree in Mechanical Aerospace Engineering or a related field 10 years of experience in aerospace fluid systems or propulsion Proven ownership of a subsystem or major fluid component through design build and test Strong technical foundation in pressurized systems cryogenics high pressure gas and propellant feed design Proficiency in CAD P\&ID creation and familiarity with ASME Y145 and aerospace standards Experience conducting system level analysis risk trades and root cause investigations Excellent communication and collaboration skills across engineering and production teams Desired Advanced degree MS or PhD in engineering discipline Demonstrated hands on experience with hardware; including fluid test hardware and instrumentation Familiarity with in space propulsion NASA standards and range safety 91 710 Experience with analytical tools such as GFSSP Python REFPROP or thermalfluid modeling Experience working with hypergolic bi propellants Understanding of propulsion engine cycles and integration with fluid systems History of developing flexible solutions with partially defined requirements and changing criteria Ability to present technical content to internal and external review boards 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 US Government space technology export regulations including the International Traffic in Arms Regulations ITAR you must be a US citizen lawful permanent resident of the US protected individual as defined by 8 USC 1324ba3 or eligible to obtain the required authorizations from the US Department of State Firefly Aerospace Inc is an Equal Opportunity Employer; employment with Firefly is governed based on merit competence and qualifications and will not be influenced in any manner by race color religion gender national originethnicity veteran status disability status age sexual orientation gender identity marital status mental or physical disability or any other legally protected status