Senior Modeling Engineer

Clarios, LLC; Plymouth, Northern (MI, KY); Hybrid; USD 110,000 - 160,000; Full time

Benefits offered by this job

Medical, dental and vision coverage

401(k) with company matching

Tuition reimbursement

Parental leave

Job summary

Clarios, LLC is seeking a Senior Modeling Engineer to lead physics-based and data-driven models for automotive energy storage systems. You will develop ECMs, aging, SOC/SOH/SOP/RUL, and system simulations across 12V, 48V, and xEV architectures.

You will validate models against lab and vehicle data and collaborate across engineering teams to accelerate virtual design and product development for lead-acid, lithium-ion, and sodium-ion technologies.

Qualifications

• Bachelor's degree in Mechanical, Electrical, Systems, Chemical or related engineering discipline.
• Minimum 8 years of engineering experience.
• Minimum 5 years of modeling and simulation experience.
• Proficiency with MATLAB/Simulink and Simscape.
• Experience with state-space modeling.

Responsibilities

• 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 representations.
• Develop aging, degradation, SOC, SOH, SOP, and RUL prediction models.
• Build system simulations for 12V/48V architectures, xEV support, and power management.
• Model interactions between battery systems, converters, loads, and vehicle networks.
• Support SOC/SOH/SOP estimation algorithms and vehicle application analysis.
• Correlate simulations with lab and vehicle data and validate models.

Skills

MATLAB/Simulink

Simscape

State-space modeling

System modeling

Education

Bachelor's degree in Mechanical Engineering, Electrical Engineering, Systems Engineering, Chemical Engineering or related field

Tools

ECM modeling techniques

Job description

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

Vehicle & Customer Application Analysis

• Simulate vehicle electrical loads and duty cycles using customer data.
• Analyze battery performance under:
  • Cranking events
  • Regenerative charging
  • Idle- reduction strategies
  • Start- stop operation
  • Thermal extremes
  • 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:
  • Lead- acid
  • AGM
  • Lithium- ion
  • Sodium- ion
  • 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 sustainability in our industry. At Clarios, we’re not just making batteries; we’re shaping the future of sustainable transportation. Join our mission to innovate, push boundaries, and make a real impact. Discover your potential at Clarios—where your power meets endless possibilities.

Veterans/Military Spouses:

We value the leadership, adaptability, and technical expertise developed through military service. At Clarios, those capabilities thrive in an environment built on grit, ingenuity, and passion—where you can grow your career while helping to power progress worldwide.

All qualified applicants will be considered without regard to protected characteristics.

Equal Employment Opportunity:

We recognize that people come with a wealth of experience and talent beyond just the technical requirements of a job. Diversity of experience and skills combined with passion is key to challenging the status quo. Therefore, we encourage people from all backgrounds to apply to our positions.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, status as a protected veteran or other protected characteristics protected by law.

As a federal contractor, we are committed to not discriminating against any applicant or employee based on these protected statuses.

We will also take affirmative action to ensure equal employment opportunities.

Please let us know if you require accommodations during the interview process by emailing [e-mail].

We are an Equal Opportunity Employer and value diversity in our teams in terms of work experience, area of expertise, and all characteristics protected by laws in the countries where we operate.

For more information on our commitment to sustainability, diversity, and equal opportunity, please read our latest report.

We want you to know your rights because EEO is the law.

Clarios is the creator behind the world’s most recognizable car battery brands.

We are the car battery found in most new vehicles including leading brands such as Ford, General Motors, Toyota, Honda, and Nissan. Our 16,000 employees develop, manufacture, and distribute batteries for virtually every type of vehicle. We recover, recycle, and reuse up to 99% of our battery materials, leading sustainability practices in our industry.