Propulsion Engineer IV (Valves) jobs in United States
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Firefly Aerospace · 5 hours ago

Propulsion Engineer IV (Valves)

Firefly Aerospace is an end-to-end responsive space transportation company on a mission to enable world-class space operations. They are seeking a Propulsion Engineer IV to design, build, test, and qualify high-performance fluid components for their launch vehicles and spacecraft.

AerospaceAir TransportationSatellite Communication
badNo H1BnoteU.S. Citizen Onlynote

Responsibilities

Demonstrate extreme ownership of hardware
Conceptualize, design, develop and deliver propulsion components to high performance systems
Responsible for entire development lifecycle and production support as the technical expert
Own a combination of Firefly developed and commercial-off-the-shelf (COTs) valves, regulators and actuators
Prepare content for and lead CoDRs, MRR, PDRs, TRRs, data reviews and CDRs
Author and execute qualification, and acceptance test plans with hands on hardware problem solving
Work to standardize solutions across programs and product lines
Improve mission cadence by identifying and implementing cost saving and risk reduction measures
Lead cross-functional teams of analysts, manufacturing engineers, quality engineers, supply chain representatives, and test engineers to deliver tested hardware on time
Resolve non-conformances and implement design changes to improve product yield and manufacturability
Work with the program teams to develop hardware upgrades in alignment with ambitious performance and cost goals
Develop simulation-based design methods and validate using subscale and full-scale testing
Lead failure investigations to determine root cause and implement mitigations
Qualify existing and new product lines following guidance from SMC-S-016 and S-080 as applicable
Manage multiple projects and competing priorities

Qualification

Aerospace EngineeringValve DesignFluid MechanicsGD&TDFMFEACFD AnalysisCryogenic SystemsAnalytical ModelingProject ManagementCollaborationSelf-motivatedCreative Problem Solving

Required

BS in Aerospace Engineering or related engineering discipline
10+ years of experience in a valve or fluid system design-related role
Exceptional comprehension of engineering fundamentals including fluid mechanics, heat transfer, structural analysis, materials, and processes
Strong understanding of fluid systems aspects such as fluids systems sizing, valve design and operation, instrumentation, flexible element design & integration and fluid fittings
Skilled in creating analytical/numerical models of engineering devices and processes
Ability to successfully manage complex projects
Works well in a collaborative, fast paced, multidisciplinary environment
Demonstrated interest in advancing 'newspace'
Self-motivated with minimum direction required
Ability to creatively develop economical solutions

Preferred

Served as a Responsible, Manufacturing or Test engineer for an aerospace development project in a fluids related subsystem
Component test experience
Proficient with GD&T
Proficient with DFM
Proficient with FEA and/or CFD analysis
Knowledge of high-pressure, cryogenic, hydraulic, and pneumatic systems
Experience with valve and regulator design
Experience with liquid oxygen or other cryogenic operations
Experience modeling fluid networks
Experience with rapid development techniques for hardware

Benefits

Generous health, dental and vision plans with low plan deductibles
Parental leave
Educational reimbursement
Short term disability
Flexible PTO options

Company

Firefly Aerospace

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Firefly Aerospace is a space company that develops and operates launch vehicles, lunar landers, and orbital vehicles for commercial mission.

Funding

Current Stage
Public Company
Total Funding
$796.56M
Key Investors
Northrop GrummanRPM VenturesAE Industrial Partners
2025-08-07IPO
2025-05-29Corporate Round· $50M
2024-11-12Series D· $175M

Leadership Team

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Jason Kim
Chief Executive Officer
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Eric Salwan
Co-Founder
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Company data provided by crunchbase