Senior Propulsion Engineer

Gravitics

<p><strong>About Gravitics</strong></p> <p>At Gravitics, we're not 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 large-scale orbital structures that enable commercial operations while meeting the requirements of defense and government missions. </p> <p>Our systems are built to scale and built to last—bridging commercial innovation with mission-critical performance. 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.  </p> <p><strong>About the Role</strong></p> <p>We are looking for rockstars who can work the full product lifecycle of an in-space propulsion system from design through build and integration. You will own major fluid subsystems to develop a propulsion system that operates flawlessly regardless of the mission.</p> <p><strong>Responsibilities</strong></p> <ul> <li>Design, build, and test propulsion fluid systems, including feed systems, tank pressurization, propellant management, and associated fluid components</li> <li>Take ownership of propulsion subsystem architecture elements, from concept definition through hardware integration and test</li> <li>Lead system-level trade studies to evaluate performance, weight, power, and cost</li> <li>Plan and execute propulsion integration and test campaigns, including component, subsystem, and full vehicle testing</li> <li>Generate and maintain engineering documentation such as requirements, interface control documents (ICDs), test plans, and fluid system schematics</li> <li>Work cross-functionally with structures, thermal, avionics, and GNC teams to ensure propulsion system compatibility with vehicle-level performance</li> <li>Support environmental qualification and acceptance testing, including thermal-vacuum, vibration, and leak/proof pressure testing</li> </ul> <p><strong>About You </strong></p> <p>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. </p> <p><strong>Required Attributes</strong></p> <ul> <li>5+ years of experience in mechanical or aerospace engineering</li> <li>Bachelor’s degree in aerospace engineering, Mechanical Engineering, or another applicable field</li> <li>Working knowledge of propulsion or fluid system components (feed systems, pressurization, valves, regulators, or similar)</li> <li>Exposure to one or more of the following:</li> <ul> <li>Liquid or gas propulsion system design</li> <li>Propellant management and fluid handling</li> <li>Hardware assembly, integration, and functional testing</li> <li>Thermodynamic or fluid dynamics analysis</li> </ul> <li>Ability to understand structural, fluid, and thermal designs from first principles</li> </ul> <ul> <li>Familiarity with CAD and FEA packages such as NX and NASTRAN or similar</li> <li>Ability to thrive in a fast-moving environment with evolving requirements and a high degree of ownership</li> </ul> <p><strong><em>Bonus Points for</em></strong></p> &l

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