Cowboyspace

Senior Fluids Engineer

Seattle, WA · Senior

Work authorization required$160k-$185kDetected 14 days ago

SolidWorksCATIAFEAThermal AnalysisStructural AnalysisMIL-STD

About the role

This includes valves, regulators, fluid storage systems (tanks and pressure vessels), fluid routing (tubing, fittings, brackets, and manifolds), and integrated fluid subsystems.

Design valves (flow control, isolation, regulation, check, and relief) for propellant, pressurant, and thermal fluid systems used on propulsion and launch vehicle systems.
Develop fluid storage hardware including propellant tanks, pressure vessels, and accumulators from concept through qualification.
Design fluid routing architecture: tubing runs, manifolds, fittings, flex lines, and quick-disconnects for vehicle integration.
Own fluid subsystem layout and integration, ensuring compatibility across propulsion, thermal, and pneumatic systems.
Perform hydraulic and pneumatic analysis (pressure drop, flow distribution, water hammer, thermal transients) to size components and verify system performance.
Perform structural analysis (FEA, hand calcs) and validate with test and flight data.
Generate detailed component and assembly drawings, specifications, and interface control documents.
Support and execute component-level and system-level test campaigns (proof, burst, flow, leak, cycle life).
Work directly with manufacturing and technicians to resolve build issues, improve producibility, and support rapid iteration.
Support vehicle integration, fill/drain operations, and ground system interfaces.

Bachelor's degree in Mechanical, Aerospace, Chemical, or related engineering field.
3+ years of experience designing fluid system hardware (valves, regulators, tanks, tubing, or fittings) for flight or high-performance applications.
Experience with fluid system analysis: pressure drop, flow sizing, structural analysis of pressure vessels, or thermal-fluid modeling.
Proficiency with CAD tools (NX, CATIA, or SolidWorks) for detailed part and assembly design.

Experience with launch vehicle or spacecraft propulsion fluid systems.
Familiarity with cryogenic fluid handling, storage, and insulation systems.
Experience designing or qualifying valves (solenoid, pneumatic, or mechanically actuated).
Knowledge of material compatibility with common propellants (LOX, methane, hydrazine, NTO) and pressurants (helium, nitrogen).
Experience with additive manufacturing or advanced fabrication methods for fluid components.
Familiarity with relevant industry standards (AIAA, SAE, MIL-spec, ASME pressure vessel codes).
Experience supporting propulsion hot-fire testing or vehicle fill/drain operations.
10 paid holidays per calendar year

This listing is sourced directly from Cowboyspace's careers page and normalized into a canonical job model.