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Senior Propulsion Engineer Verified today

Gravitics · Seattle, WA · Propulsion · first seen 2026-07-16

About the Role

You will own major fluid subsystems to develop a propulsion system that operates flawlessly regardless of the mission. Work the full product lifecycle of an in-space propulsion system from design through build and integration.

Responsibilities

  • Design, build, and test propulsion fluid systems, including feed systems, tank pressurization, propellant management, and associated fluid components
  • Take ownership of propulsion subsystem architecture elements, from concept definition through hardware integration and test
  • Lead system-level trade studies to evaluate performance, weight, power, and cost
  • Plan and execute propulsion integration and test campaigns, including component, subsystem, and full vehicle testing
  • Generate and maintain engineering documentation such as requirements, interface control documents (ICDs), test plans, and fluid system schematics
  • Work cross-functionally with structures, thermal, avionics, and GNC teams to ensure propulsion system compatibility with vehicle-level performance
  • Support environmental qualification and acceptance testing, including thermal-vacuum, vibration, and leak/proof pressure testing
  • Actively contribute to design reviews (PDR, CDR) and drive propulsion-related technical decisions throughout the program lifecycle
  • Be a reliable expert on your design from concept to mission control console

Required Experience

  • 5+ years of experience in mechanical or aerospace engineering
  • Bachelor's degree in aerospace engineering, Mechanical Engineering, or another applicable field
  • Working knowledge of propulsion or fluid system components (feed systems, pressurization, valves, regulators, or similar)
  • Exposure to one or more of the following: liquid or gas propulsion system design, propellant management and fluid handling, hardware assembly and integration and functional testing, or thermodynamic or fluid dynamics analysis
  • Ability to understand structural, fluid, and thermal designs from first principles
  • Familiarity with CAD and FEA packages such as NX and NASTRAN or similar
  • Ability to thrive in a fast-moving environment with evolving requirements and a high degree of ownership

Bonus Experience

  • Background in feed system design, pressurant system sizing, or propellant budgeting
  • Hands-on experience assembling, integrating, and testing fluid system hardware
  • Familiarity with propulsion-specific test environments, including proof/leak testing, hotfire testing, or pressure system qualification
  • Experience conducting trade studies and optimizing propulsion system performance, weight, and reliability
  • Familiarity with combustion, propellant chemistry, or reaction control system (RCS) design
  • Experience with CFD, thermal fluid system modeling, and/or combustion modeling tools (e.g., Thermal Desktop, ANSYS Fluent, MATLAB/Simulink, ROCETS, GFSSP, CEA, TDK)
  • Experience in high-reliability or safety-critical fluid systems with formal verification and validation practices
  • Demonstrated ability to drive complex propulsion hardware from early design through acceptance testing
  • Prior experience at launch vehicle, spacecraft, or propulsion-focused organizations
  • Proficient understanding of drafting standards and GD&T (ASME Y14.5)

Employment Requirements

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.

Senior Propulsion Engineer at Gravitics | Flight Proven Space