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Relativity Space is building next-generation rockets and space systems to serve commercial and scientific missions. As a Staff Avionics Mechanical Engineer, you will own the complete design, development, and delivery of mechanical hardware for advanced space science avionics platforms. This encompasses enclosures, mounting structures, thermal management systems, and interfaces to spacecraft systems.
You will be responsible for ensuring avionics survive launch and space environments while solving complex thermal and structural challenges within tight, mass-efficient packaging constraints. This is a hands-on role for a self-driven engineer who thrives in fast-paced, prototype-heavy environments. You will work from first principles to rapidly iterate on designs, perform analysis and testing, and lead the delivery of flight-ready avionics mechanical systems.
The role sits within the Interplanetary Sciences Program, which aims to expand access to scientific exploration across the solar system by making planetary research faster, more affordable, and more capable. The program rethinks how science missions are designed, built, and operated, enabling scientists to send instruments to distant worlds without decades of development or prohibitive costs.
You will collaborate across teams, shape decisions, and see your work come to life in record time. Relativity emphasizes autonomy, ownership, and impact at every level. This is an opportunity to join at a moment where the company is early enough to leave your mark on the product and culture, but far enough along that the Terran R vehicle is tangible and gaining momentum.
