Sr. Power Electronics Mechanical Engineer Rivian - 2.7 Carson, CA Job Details Full-time 21 hours ago Qualifications Data integrity assurance Engineering reliability testing Bachelor's degree in mechanical engineering Mechanical blueprint interpretation Communication with suppliers On-site technical support New product introduction engineering projects Verification (System development task) Startup experience Defect analysis Supply chain Supplier quality engineering practices Electronics test plan development Mechanical Engineering PDM software Injection (injection molding) Reliability analysis Electrical schematic reading and interpretation Assembly fixtures

GD&T PCB

Master's degree 3D modeling for product design Manufacturing facility experience Data integrity and documentation Schedule management Mechanical drawings Bachelor's degree in engineering Data management Design failure mode and effects analysis (DFMEA) Full Job Description As a Sr. Power Electronics Mechanical Engineer, you will be working on our next-generation Inverter Modules from initial concept through to full-scale production. You will be responsible for designing critical components including Busbars, metal housings, sealing interfaces, and HV/LV harnesses, Plastic Injection molded parts from the ground up. This role requires close collaboration with cross-functional teams to resolve complex packaging challenges. This position is based at our Carson, CA facility and reports directly to the Sr. Staff Power Electronics Mechanical Engineer, Electric Power Conversion Group (EPC). Lead the mechanical development of Inverter Modules using

CATIA V6/3DEXPERIENCE

Design and engineer a wide array of components, including high-pressure die castings, injection-molded plastics, busbars, sheet metal, high/low voltage harnesses, sealing interfaces, and PCBA mechanical integration Manage the full release cycle of mechanical components using ENOVIA, ensuring data integrity and design maturity Generate and maintain complex Top-Level Assembly Bills of Materials (BOM), ensuring all component attributes are captured with 100% accuracy Drive weekly technical reviews with suppliers to close open design items, manage timelines, and ensure DFM (Design for Manufacturing) alignment Act as the primary technical liaison for Supply Chain and Supplier Quality teams to resolve action items and maintain production schedules Author critical engineering documents, including Component Technical Specifications (CTS), Statements of Work (SOW) for sourcing, and detailed assembly manuals Collaborate with Systems team on DFMEAs and develop robust Design Verification (DV) test plans to ensure long-term product reliability Provide on-site support for pre-production lines, including the design of specialized mechanical fixtures and assembly aids Collaborate closely with Manufacturing Engineering to design, validate, and commission the production line on schedule Lead troubleshooting efforts for issues arising during prototype builds and scale-up Spearhead the root cause investigation of field failures related to mechanical assemblies, implementing design improvements to prevent recurrence Bachelor's degree in mechanical engineering or related engineering field; Master's preferred Minimum 4 years of professional work experience as an engineer releasing Power Electronics assemblies Extensive experience interfacing and managing external suppliers Knowledge of CATIA V5 or V6 software including part design and assembly design workbenches Experience with fundamental design practices of die casting, sheet metal, and injection molding Knowledge of GD&T per

ASME Y14.5

Ability to understand electrical and mechanical drawings Understanding and knowledge of ENOVIA Product Lifecycle Management system Experience working in the automotive industry and startup environment preferred