Senior Propulsion Engineer

About Gravitics  At Gravitics, we're not just exploring space—we're building it. We're creating the infrastructure for a thriving space economy, enabling humanity to flourish beyond Earth. Our vision is bold, but we're not just dreamers; we're doers. We design and manufacture the large-scale structures and systems that will power human and robotic activity in Earth orbit and beyond. If you're ready to lay the foundations for a new era in space, embrace a culture of relentless learning and innovation, and contribute to a future where humanity's reach extends farther, Gravitics is the place for you. Let's build the future, together. About the Role To build our giant space systems, we need rockstars of all experience levels who can directly work the full product lifecycle of an in-space propulsion system, including thrusters, valves,andpropellant & pressurization systems. Responsibilities:  · Own the development of hardware for fluid system applications including valves, tubing, brackets, manifolds, and thrusters.  · Perform structural, thermal, and fluids analyses to define and verify component and system requirements and behavior.  · Generate system diagrams, system CAD, component drawings, and detailed requirements.  · Support procurement of components and external design reviews.  · Define test plans and interface with manufacturing to accept production hardware for flight.  · Manage project schedules, risk, and budget You’re a successful candidate if you are a giver, not a taker. You make things happen. You are exceptional at several things, yet willing to take on efforts in areas of weakness. Required Attributes · Direct experiencewith in-spacechemicalpropulsion systems and demonstratedpastownership of complex fluid or mechanical projects. · Ability tounderstand structural, fluid, and thermal designs from first principles. · Familiarity with CAD and FEA packages such as NX and NASTRAN or similar. · 5+ years of industry experience. · Bachelor’s degree in an applicable field.  · This role will support programs for U.S. Government customers, including national security and defense-related missions. Candidates must be willing to work on Civil, Commercial, and Defense-related projects. Bonus Points for  · Experience designing test or flight fluid systems for high pressure gases or liquids.  · Strong understanding and application of drafting standards and GD&T (ASME Y14.5). · Familiarity with safety critical systems,oxygen systems,pressure vessels, relief devices,igniters/exciters,and/or small thrusters. · Experience with prop/fluid system analysis tools such as ROCETS, GFSSP, CEA, TDK. · Proficiencyin Python.