As a Mechanical Engineer within the propulsion team you will own the end-to-end lifecycle of propulsion hardware from first-principles concept through high-volume production and on-orbit operation. You will combine analytical rigor with build-and-test ownership to produce hardware that is lightweight, cost-effective, and performs consistently at scale. This is a hands-on role which requires collaboration across functional boundaries to develop thrusters, cathodes, and the mechanical hardware that interfaces directly with the plasma discharge environment. Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Key job responsibilities Own the complete lifecycle of one or more propulsion subsystems - thrusters, cathodes, fluidic feed systems, or power processing units - from conceptual design through qualification, high-volume production, and on-orbit performance monitoring - Solve complex mechanical, thermal, magnetic, and fluid system problems on space-grade hardware, using first-principles analysis to drive design decisions and resolve ambiguity quickly - Develop design criteria, collaborate on requirements, and lead system-level trade studies. Rapidly iterate on designs and analysis to inform high level trades and steer product development - Produce complete design documentation - drawings, tolerance analyses, structural & thermal analyses, and test plans - at a level of detail that drives production without ambiguity - Apply DFMA practices to minimize part counts, reduce fastener counts, optimize assembly sequences, and error-proof fabrication and integration steps for a high-rate production environment - Plan and execute vacuum chamber tests, performance characterization, and environmental qualification to validate analytical models and demonstrate compliance - Lead root cause investigations for hardware failures and non-conformances; owning corrective action through closure - Work cross-functionally with experts in plasma physics, avionics, thermal, structures, and materials as an accountable technical partner across the full product lifecycle BASIC QUALIFICATIONS - Experience in developing functional specifications, design verification plans and functional test procedures - Bachelor's degree or above in Mechanical Engineering - Experience in the design of complex mechanical products and equipment at volume - 7+ years of technical engineering experience PREFERRED QUALIFICATIONS - Advanced degree (Master's or PhD) in aerospace or mechanical engineering, or related discipline - Experience designing, building, and testing electric propulsion subsystems such as Hall effect thrusters, cathode assemblies, or ion engines - Experience with pressurized fluid component design, analysis, and testing - CAD software expertise (SolidWorks, NX, Creo, etc) - Strong GD&T background, including tolerance stack analysis on complex multi-component assemblies - Experience with structural analysis methods for spacecraft: static margin, modal analysis, random vibration, shock response spectrum, and fatigue - Experience with thermal analysis: conduction and radiation modeling, thermal isolator and strap selection, heat dissipation paths, and temperature prediction across operational and survival environments - Proficiency with scripting (Python, MATLAB, or equivalent) for analysis and data visualization The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits. USA, WA, REDMOND - 159,200.00 - 215,300.00 USD annually