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Turning Space into a Transportation Layer for Earth Who 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 Test Engineer (Arc Vehicle)  at Inversion, you will report directly to the  Manager of  Arc Vehicle Integration & Test . In this role, you will own the preparation, execution, and data analysis of vehicle-level qualification and acceptance test campaigns for the Arc hypersonic reentry vehicle.  This includes  environmental testing, including vibration, shock, acoustic, thermal, and thermal vacuum (TVAC) testing. You will design physical test setups, configure complex data acquisition systems, and lead test execution to ensure our vehicle survives extreme launch and reentry environments. You will work with high autonomy, mentoring junior engineers and collaborating with subsystem owners to verify critical requirements.   Key  Responsibilities   Develop, own, and execute end-to-end environmental qualification and acceptance test campaigns (vibration, shock, acoustic, thermal, and TVAC) for the Arc vehicle.   Author, review, and approve detailed vehicle-level test plans, test procedures, and formal test reports.   Design and procure test fixtures, structural interface plates, and test ground support equipment (GSE) using CAD software.   Configure, calibrate, and operate data acquisition (DAQ) hardware and sensor suites, including accelerometers, thermocouples, RTDs, and strain gauges.   Analyze post-test data, perform signal processing, and verify test results against design margins and structural requirements.   Lead the troubleshooting of test anomalies, instrumentation dropouts, and hardware failures, performing rigorous root-cause analysis.   Mentor junior and mid-level test engineers on instrumentation setup, test standards, and data processing.   Coordinate with external test facilities, vendors, and internal schedulers to ensure on-time test execution.   Required Qualifications   Bachelor’s degree in Aerospace Engineering , Mechanical Engineering, Electrical Engineering, or equivalent technical experience.   Typically  5+ years of hands-on experience in aerospace environmental testing (vibration, shock, thermal vacuum, or acoustic testing) at the subsystem or vehicle level.   Proven experience authoring comprehensive test plans, executing   qualification/acceptance testing, and post-processing test data.   Direct, hands-on experience with data acquisition systems (DAQ), sensor signal conditioning, and instrumentation setup.   Experience designing mechanical test fixtures, interface plates, or test GSE in CAD (Siemens NX or equivalent).