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Senior Mechanisms Systems Engineer

Relativity Space - Long Beach, CA, United States - In-office - posted 2026-09-04

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Relativity Space is building the Terran R launch vehicle to deliver payloads to orbit using advanced 3D printing manufacturing. The Mechanisms Team designs and delivers complex, high-performance mechanical systems critical to launch-vehicle flight, landing, and reusability—including actuators, latches, and thrust vector control (TVC) systems. As Senior Mechanisms Systems Engineer, you will be the technical and programmatic owner for large, cross-discipline mechanism systems such as thrust vector control. You will report directly to the Mechanisms team leadership and lead system-level design and integration, guiding requirements, architecture, and verification across hardware and software interfaces. Key responsibilities include: - Define system concepts of operations (CONOPS), requirements, and verification plans - Lead integrated product activities across mechanical design, actuators, GNC (Guidance, Navigation & Control), avionics, and software teams to ensure seamless system performance - Drive development tests, functional verification, and flight readiness by authoring test plans, executing tests, and establishing success criteria - Anticipate technical and logistical risks, develop mitigation strategies, and align priorities across engineering disciplines and schedules - Coordinate the design, manufacturing, integration, and test schedules for complex mechanism systems - Take hands-on ownership of emergent challenges—whether designing test fixtures, specifying sensors, writing test automation, or leading root-cause investigations This role occasionally requires travel to test and launch sites and may involve shifted or weekend schedules to support critical milestones. You will work in a high-autonomy environment where technical rigor and creativity drive innovation on a product with tangible momentum.

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