The Battery Cell Modeling Engineer at Rivian is a senior-level position within the Battery Cell Engineering team, focusing on developing validated P2D models for characterizing the DCFC capability of battery cells. This role emphasizes a first-principles approach to modeling heat generation and integrating cell models into broader battery thermal management systems. The engineer will act as a primary technical contact for active programs, ensuring accurate representation of cell models in vehicle performance targets. The position requires a strong background in modeling complex physical systems and a passion for innovation in battery technology.

• M.S. or PhD in Applied Mathematics, Physics, Mechanical Engineering, or Chemical Engineering.
• 5+ years of academic or industry experience in modeling complex physical systems.
• Mastery of lithium-ion battery operating principles.
• Expertise in P2D modeling, charge transport, and reaction kinetics.
• Strong instincts for automation and building scalable modeling frameworks.

• Lead the development and validation of P2D and electrochemical-thermal models for fast-charge boundaries.
• Use a first-principles approach to analyze heat generation mechanisms in battery cells.
• Act as the primary technical point of contact for active programs, ensuring accurate cell model representation.
• Champion an automation-first mindset to enhance simulation efficiency and standardization.
• Collaborate with thermal and system engineers to integrate cell models into battery thermal management systems.

• Employees at Rivian are often offered comprehensive health, dental, and vision insurance, a 401(k) with company match, ESPP and potential RSU grants, performance bonuses, and generous time off including paid parental and sick leave. Perks can include 24/7 mental-health coaching and therapy, Hinge Health for Anthem enrollees, tuition assistance and professional development, plus on-site food and a wide range of employee discounts on items like computers, mobile phones, home loans, and pet care.