Sr. Motor Mechanical Engineer

About Rivian

Rivian is on a mission to keep the world adventurous forever. This goes for the emissions-free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract.

As a company, we constantly challenge what's possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations.

Role Summary

In this role, you will collaborate with the Electric Machine Mechanical Design Team to develop current and next-generation electric motors for Rivian's Electric Adventure Vehicles. Your responsibilities will include generating motor concepts, designing components, creating drawings, developing tooling, supporting prototyping, conducting tests, and assisting with production.

Responsibilities

• Design sub-systems and components for various electric drive units, including wound field motor, permanent magnet motor, and motor mechanical structural components.
• Generate & revise detailed 3D CAD models and 2D drawings of electro-mechanical designs at a component and motor sub-system level using CATIA V6.
• Review designs & drawings for completeness and accuracy.
• Develop detailed work instructions, assembly guidance, and related documentation.
• Analyze and verify preliminary and detailed designs with analytical calculations and numerical (FEA) as required.
• Collaborate and manage suppliers with DFM, DFA, and open issues lists to ensure on-time delivery of parts and quality conformance according to the acceptance criteria.
• Support developing component technical specifications, DVP&Rs, test & validation plans, and Statements of Work (SOW) as required.
• Design of related assembly tooling and fixtures for early prototype development and testing.
• Ensure timely completion of project deliverables, including designs, drawings, analyses, and other documentation as required.
• Lead and support developmental activities of various laboratory work from assembly builds to test and validation with a hands-on approach.
• Ability to travel to suppliers and Rivian manufacturing plants to support with experimental studies, root cause identification, and resolution.
• Cross-functional collaboration with multi-disciplinary teams across Rivian.
• Support root cause analysis studies to identify issue origin, determine appropriate containment plan, and permanent resolution for the issue.

Qualifications

• 5+ years of experience in mechanical design of complex systems and components, in a fast-paced environment.
• Formal education in Mechanical Engineering or a similar discipline; B.S. minimum, MS Preferred.
• Proficiency with 3D CAD modeling; CATIA V6 experience preferred.
• Professional experience with application of GD&T (ASME Y14.5), conducting stack-up analyses (linear & radial), and determining realistic tolerancing limits based on material and manufacturing methods
• Ability to perform structural hand calculations and initial FEA studies to support sizing, loading cases, and design feasibility.
• Proven ability to collaborate cross-functionally with technicians, manufacturing, process, design, and integration teams to solve problems.
• Knowledge of rapid prototyping, high-volume manufacturing processes, materials selection, and supply chain.
• Hands-on experience with lab tools, equipment, and measurement tools.
• Strong engineering fundamentals in the areas of materials, mechanics, dynamics, design for manufacturability, tolerancing, and high precision metrology.
• Experience with leading root cause analysis efforts, determining effective containment actions.
• Knowledge in DFMEA, DVP&R, and PFMEA.
• High-energy, open-minded attitude, willingness to quickly iterate on designs, and expanding skillsets as needed.

Pay Disclosure

The salary range for this role is USD ,800 for Southern California based applicants. This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee's position within the salary range will be based on several factors, including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, geographic location, shift, and organizational needs.

The successful candidate may be eligible for annual performance bonus and equity awards.

We offer a comprehensive package of benefits for full-time and part-time employees, their spouse or domestic partner, and children up to age 26, including but not limited to paid vacation, paid sick leave, and a competitive portfolio of insurance benefits including life, medical, dental, vision, short-term disability insurance, and long-term disability insurance to eligible employees. You may also have the opportunity to participate in Rivian's 401(k) Plan and Employee Stock Purchase Program if you meet certain eligibility requirements.

Full-time employee coverage is effective on their first day of employment.…