Staff Thermal Design Engineer
Rivian • Irvine, California • Posted June 19, 2026
Position Overview
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 Thermal design and validation of low-voltage electrical hardware is a mission-critical function at Rivian, ensuring the long-term reliability and performance of our core electronic control units (ECUs) in the most demanding vehicle environments. In this role, you will lead the development of high-fidelity thermal strategies for our in-house ECU portfolio—bridging the gap between silicon-level performance and vehicle-level environmental integration. You will be...