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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   Staff Flight Software Engineer  at Inversion, you will report directly to the  Engineering Manager  of  Arc Vehicle Software . In this role, you will be  a  principal software architect and technical authority for the flight software running on our next-generation Arc hypersonic reentry vehicle. You will own the flight software architecture end-to-end, solving unprecedented technical challenges at the intersection of embedded hardware, safety-critical control loops, and autonomous flight state machines .   Key Responsibilities   Architect, write, and maintain high-reliability, fault-tolerant flight software in for the Arc vehicle.   Own the software architecture for critical vehicle state transitions, fault-management, power conservation, and autonomous mission execution.   Lead the integration and optimization of complex multi-rate Guidance, Navigation, and Control (GNC) algorithms from the Reentry and Accurate Landing teams into the core C++ flight software loop.   Establish company-wide embedded C++ development standards, coding guidelines, and software architectural patterns.   Drive hardware-software boundary definition, board bring-up, and low-level debugging on target flight computer processors.   Design and lead the development of highly automated Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) test suites to achieve robust code coverage.   Mentor senior and mid-level software engineers, fostering a culture of rigorous software engineering and technical excellence.   Collaborate with cross-functional system architects to define telemetry formats, communication protocols, and hardware interface controls.   Required Qualifications   Bachelor’s degree in Computer Science , Computer Engineering, Aerospace Engineering, or equivalent technical experience.   Typically 9 + years of professional experience developing embedded, real-time, or safety-critical software.   Expertise in  systems programming languages (C /  C++  / Rust)  in a Linux-based development environment.   Deep understanding of  embedded Linux , deterministic software execution, multi-threading, and memory management in resource-constrained environments.   Proven track record of architecting and deploying flight software or high-reliability autonomous software on hardware that has successfully operated in flight or harsh environments.   Strong background in low-level drivers, networking, and hardware interface protocols (such as CAN, Ethernet, SPI, UART, or RS-422).   Excellent verbal and written communication skills with a proven ability to