Senior Dynamics Engineer

Turning Space into a Transportation Layer for EarthWho We Are: Inversion builds advanced reentry systems to deliver next-generation capabilities from space. Our mission is to make Earth radically more accessible by turning Low-Earth Orbit into an on-demand logistics domain. We see space not as a destination, but as a platform — one that unlocks unprecedented speed and global reach. Our spacecraft are designed to deliver payloads anywhere on Earth in under an hour, operating through extreme reentry conditions and landing with high precision. These systems open the door to new ways of testing, delivering, and operating at hypersonic speeds. Inherently dual-use, our technology is built to meet urgent national security needs while laying the groundwork for future commercial applications. Backed by leading investors including Y Combinator, Spark Capital, and Lockheed Martin Ventures, and working with partners such as the U.S. Space Force and NASA, Inversion is pushing the boundaries of what’s possible in space-based defense and logistics.   What You'll Do  As a Senior Dynamics Engineer at Inversion, you will own the development of loads, structural dynamics, and multibody dynamics analyses for one of the most capable reentry vehicles ever developed. You’ll work across vehicle architecture, structures, mechanisms, and test to define critical dynamic environments, mature structural and deployment system designs, and validate key aspects of vehicle performance through analysis and hardware correlation.  This is a unique opportunity to shape the dynamic behavior of a new aerospace vehicle from early concept through qualification and production. You will be a key member of the Mechanical team, reporting to the Director of Mechanical.  Key Responsibilities  Own development of vehicle loads, structural dynamics, and multibody dynamics analyses from early architecture through hardware realization  Define and mature load cases and dynamic environments, including launch, shock, vibration, separation, deployment, and other transient mechanical events  Develop and maintain multibody dynamics models to evaluate separation events and other critical mechanism-driven vehicle behaviors  Partner closely with structures and mechanisms engineers to translate dynamic analysis results into design requirements, sizing inputs, interface loads, and architecture decisions  Support development of structural dynamics models, including modal characterization, transient response, and dynamic load prediction for flight hardware  Drive dynamic trade studies to evaluate mechanism architecture, deployment performance, structural response, and system sensitivity under uncertain and evolving design conditions  Help define test objectives, instrumentation needs, and correlation plans for mechanism, stru...