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Senior Manufacturing Test Engineer, Pneumatic Mechanisms & Fluid Assemblies

Relativity Space - Long Beach, CA, United States - In-office - posted 2026-10-07

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Salary: USD 109,000 - 149,500 / annual

Relativity Space is building rockets to serve today's needs and tomorrow's breakthroughs. The Terran R vehicle will deliver customer payloads to orbit, meeting growing demand for launch capacity. The Stage Manufacturing team turns design into reality, owning the build of Terran R's primary structures through a collaborative approach where engineers and technicians work side by side with real-time feedback to shape how the company builds better and faster. In this role, you will own the development, validation, and refinement of test assets and processes across mechanical, electrical, and pneumatic systems. You will collaborate with design and manufacturing partners to ensure production testing campaigns are executed efficiently, reliably, and scalably over time. Key responsibilities include: - Drive technical execution of mechanisms and integrated assembly testing through design integration, test equipment/tooling design or sourcing, test sequencing, mBOM development, work order creation, test training, and specification authoring. - Provide technical leadership in workcenter development, offering guidance on assembly and test operations, safety compliance, tooling, and capital equipment in alignment with organizational objectives. - Provide hands-on support to the shop floor and production personnel, promptly addressing test issues and offering upstream feedback to drive design for manufacturability, testability, or reparability. - Analyze test data to evaluate assembly performance, identify recurring discrepancies, and lead cross-functional teams in root cause analysis and implementation of corrective actions. - Drive cross-functional collaboration with design, production, supply chain, and quality teams to ensure seamless execution of manufacturing test processes. This is an opportunity to work on a tangible, high-momentum product where you'll have autonomy, ownership, and impact at every level. You'll solve problems that haven't been solved before and see your work come to life in record time. REQUIREMENTS: - BS degree in aerospace, mechanical, electrical, manufacturing engineering, or related discipline with 3+ years of experience building and testing hardware in a manufacturing environment. - Proven experience authoring test procedures to build and validate mechanical, electrical, and pneumatic assemblies. - Demonstrated experience partnering with design engineering, manufacturing, and production teams to execute test procedures and lead investigations of test failures and anomalies. - Proven experience designing, implementing, and managing large-scope test systems and process improvements with minimal oversight. - Expert knowledge of safety standards, common test hazards, and appropriate mitigations. - Hands-on experience in at least two of the following: electromechanical or pneumatic assembly, electrical or pneumatic functional checkouts, integrated testing, leak checking, sensor checkouts, high-voltage systems (320V+), high-pressure pneumatic systems, or instrumentation and sensor setup. NICE TO HAVES: - Proactive self-starter with proven track record of defining and implementing testing processes, driving execution across diverse teams, and successfully managing and delivering testing projects in fast-paced, production-driven environments. - Working knowledge of rocket subsystems, including structures, mechanisms, high-pressure gas systems, and avionics, with experience in planning and conducting hazardous operations for aerospace hardware systems. - Knowledge of industry test standards (e.g., SMC-S-016, MIL-STD-1540D, MIL-STD-810G). - Experience with test automation, data acquisitions and control systems, electrical test equipment (oscilloscopes, multimeters), or pressure test equipment (pressure regulators, flow meters).

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