Senior Modeling Engineer

What you will do:

Clarios is seeking an experienced Senior Modeling Engineer to lead the development of physics-based, data-driven, and system-level models supporting next-generation automotive energy storage systems. This role is responsible for creating, validating, and applying models for batteries, supercapacitors, battery management systems (BMS), charging systems, vehicle electrical architectures, and energy management strategies. The Senior Modeling Engineer will work across product development, advanced technology, systems engineering, controls, and customer engineering teams to enable virtual design validation, performance prediction, optimization, and accelerated product development.

The role supports both traditional lead-acid technologies and emerging lithium-ion and sodium-ion energy storage systems for global automotive OEM customers.

How you will do it:

Modeling & Simulation Development

• Develop and maintain electrical, thermal, electrochemical, and system-level
models of energy storage products.

• Create battery equivalent circuit models (ECM), reduced-order models, and
physics-based battery representations.

• Develop battery aging, degradation, SOC, SOH, SOP, and RUL prediction
models.

• Build system simulations for: 12V vehicle networks, 48V vehicle architectures, Dual-voltage systems, Start-stop applications, xEV support functions, Intelligent power management systems

• Model interactions between battery systems, DC/DC converters, alternators,
loads, and vehicle electrical networks.

Controls & Algorithm Development

• Support development of:
o State of Charge (SOC) estimation algorithms
o State of Health (SOH) estimation algorithms
o State of Power (SOP) prediction algorithms

Vehicle & Customer Application Analysis

• Simulate vehicle electrical loads and duty cycles using customer data.

• Analyze battery performance under:
o Cranking events
o Regenerative charging
o Idle-reduction strategies
o Start-stop operation
o Thermal extremes
o Aging conditions

• Support OEM customer studies regarding battery sizing, architecture selection,
and performance optimization.

• Develop predictive models supporting proposal and pursuit activities.

Model Correlation & Validation

• Correlate simulation results against laboratory and vehicle test data.

• Develop validation methodologies to ensure model accuracy and robustness.

• Conduct sensitivity studies and uncertainty analyses.

• Establish modeling standards, assumptions, and best practices across the
organization

What we look for:

Required:

• Bachelor's degree in:
Mechanical Engineering, Electrical Engineering, Systems Engineering, Chemical Engineering or Related Engineering Discipline

• Minimum 8 years of engineering experience.

• Minimum 5 years of modeling and simulation experience.

• MATLAB/Simulink

• Simscape

• State-space modeling

Preferred:

• Master's Degree or PhD in Engineering, Applied Mathematics, Physics, or related field.

• Experience developing battery models for:
o Lead-acid
o AGM

o Lithium-ion
o Sodium-ion
o Ultracapacitor systems

#LI-TD1

#LI-Hybrid

What you get:

• Medical, dental and vision care coverage and a 401(k) savings plan with company matching – all starting on date of hire

• Tuition reimbursement, perks, and discounts

• Parental and caregiver leave programs

• All the usual benefits such as paid time off, flexible spending, short-and long-term disability, basic life insurance, business travel insurance, and Employee Assistance Program

• Global market strength and worldwide market share leadership

• HQ location earns LEED certification for sustainability plus a full-service cafeteria and workout facility

• Clarios has been recognized as one of 2026's Most Ethical Companies by Ethisphere. This prestigious recognition marks the fourth consecutive year Clarios has received this distinction.

Who we are:
Clarios is the force behind the world’s most recognizable car battery brands, powering vehicles from leading automakers like Ford, General Motors, Toyota, Honda, and Nissan. With 18,000 employees worldwide, we develop, manufacture, and distribute energy storage solutions while recovering, recycling, and reusing up to 99% of battery materials—setting the standard for…