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Mechanical Engineering

Staff Motor Thermal Engineer

Rivian ✓

Lead electric-motor thermal architecture, direct-oil cooling design, CFD analysis and physical validation for next-generation Rivian drive units.

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Location

Carson, California, United States

Work mode

On-site

Employment

Full-time

Experience

Senior

Visa support

Not Specified

Salary

$1,37,800 – $1,72,200 per year

Official salary range for Southern California applicants. Annual performance bonus and equity awards may also apply.

Opportunity

Job Description

The Staff Motor Thermal Engineer will define the cooling and lubrication strategy for Rivian’s next-generation electric drive units. The position combines zero-dimensional and one-dimensional system modelling with detailed three-dimensional CFD. The engineer will optimise direct-oil cooling of shafts, rotors, stators and end windings and correlate analytical predictions with dynamometer and physical hardware testing.

Responsibilities

• Develop lubrication and thermal models for electric motors and drive units.
• Lead the design and optimisation of shaft, rotor, stator and end-winding oil cooling.
• Define thermal and lubrication requirements for motors, inverters and transmission interfaces.
• Perform system-level modelling and high-fidelity three-dimensional CFD.
• Develop motor-dynamometer and drive-unit validation plans.
• Collect test data and correlate physical results with analytical models.
• Balance power density, efficiency, reliability and thermal-management requirements.
• Collaborate with motor-design, controls, testing and manufacturing teams.

Eligibility

• Bachelor’s, master’s or doctoral degree in Mechanical Engineering, Thermal Sciences or a related discipline.
• At least seven years of experience in electric-vehicle powertrain lubrication and thermal management.
• Advanced understanding of rotating machinery, convective heat transfer and dielectric-oil fluid dynamics.
• Experience using thermal simulations and physical testing to validate engineering designs.

Required Skills

Electric-motor thermal managementHeat-transfer engineeringFluid dynamicsDirect-oil coolingOne-dimensional system modellingThree-dimensional CFDTest-to-model correlation

Preferred Skills

GT-SUITESimerics-MP+STAR-CCM+Python or MATLABHEEDS or modeFRONTIER

Application Instructions

Apply directly through Rivian’s official careers website and submit the required résumé and application information.

Apply through UCO Aero

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