Thermal Engineer - Battery Systems

Gotion Inc.; Manteno (IL); On-site; USD 90,000 - 128,000; Full time

Job summary

A leading battery technology company is seeking a Thermal Engineer – Battery Systems. This pivotal role involves optimizing thermal safety for EV batteries through state-of-the-art simulations and collaboration. Candidates must have a Master’s degree in mechanical engineering and at least 3 years of experience in battery design. The position is based in Manteno, IL, offering a competitive salary range of $90,000 – $128,000 plus bonuses.

Qualifications

• At least 3+ years of experience in high-voltage battery pack thermal design.
• Experience supporting product development life cycle.
• Ability and willingness to travel domestically and internationally.

Responsibilities

• Perform thermal/CFD simulations to optimize battery pack performance.
• Collaborate with U.S. OEM customers on new pack designs.
• Document CFD modeling approaches and simulation results.

Skills

Thermal design expertise

CFD simulation proficiency

Problem-solving

Proactive mindset

Education

Master’s degree in mechanical engineering or related field

Tools

COMSOL

ANSYS Fluent

STAR-CCM+

CATIA V6

Job description

Join to apply for the Thermal Engineer - Battery Systems role at Gotion Inc. Gotion Inc. is based in Silicon Valley, CA and is building a manufacturing facility in Manteno, IL, while operating R&D centers in Ohio, China, Japan and Europe. We innovate in next‑generation electric vehicle and energy storage technologies (lithium batteries and related systems) with the aim to accelerate electrified transportation and achieve sustainable development.

About The Team

The Product Development Team at Gotion Illinois New Energy Inc. focuses on the design and development of advanced battery products for next‑generation energy storage systems (ESS) and electric vehicle (EV) applications. We lead the full product development cycle, integrating mechanical, electrical, thermal, and control systems to create high‑performance battery solutions, along with comprehensive system integration, validation, and certification activities.

Role Summary

As a Thermal Engineer – Battery Systems at Gotion Inc, you will play a pivotal role in leading engineering decisions for battery cells, modules, packs, cooling plates, and thermal propagation mitigation strategies in collaboration with U.S. OEM customers and our internal design and simulation teams. This position requires a deep understanding of battery pack technology and a strong background in engineering project leadership. It requires full‑time onsite presence at the Manteno, IL location.

Essential Duties And Responsibilities

• Perform state‑of‑the‑art thermal/CFD simulations to analyze pressure drop, thermal efficiency, and thermal propagation of battery packs and module components to optimize the performance of next‑generation EV battery systems.
• Collaborate with U.S. OEM customers and the internal product development team to drive new pack designs from concept to mass production.
• Collaborate with offshore simulation team to manage end‑to‑end analysis processes, maintaining technical quality, efficiency, result analysis, and alignment with project objectives.
• Prepare and present technical findings, design trade‑offs, and recommended actions and report to the leadership team.
• Work closely with product design, manufacturing, test, supply chain, quality, and other teams to provide simulation‑driven design input and handle supplier discussions.
• Correlate simulation outcomes with physical test data and update models to improve accuracy.
• Support DFMEA, design reviews, test and validation team to lay out the plan for the DVP&R testing.
• Document CFD modeling approaches and simulation results, offering data‑driven insights to assist design teams in improving thermal performance.

Required Qualifications

• Master’s degree in mechanical engineering or a related technical field.
• At least 3+ years of experience in high‑voltage battery pack thermal design and simulations and supporting product development life cycle.
• Proficiency using COMSOL, ANSYS Fluent, STAR‑CCM+, or other CAE tools for thermal/CFD simulation, and design tools such as CATIA V6.
• Strong foundation in engineering principles and a history of applying this knowledge to solve complex problems.
• Self‑starter with a proactive mindset, willing to learn and adapt in a fast‑paced environment.
• Ability and willingness to travel domestically and internationally to support projects.

Salary

The U.S. base salary range for this full‑time position is $90,000.00 – $128,000.00, plus 15% bonus and benefits. Our salary ranges are determined by role, level, and location. Within the range, individual pay is determined by work location and additional factors, including job‑related skills, experience, and relevant education or training.

Equal Employment Opportunity

Gotion Inc. is proud to be an equal‑opportunity employer. We are dedicated to fostering a diverse workforce that reflects the communities we serve, cultivating a culture of inclusion and belonging, and ensuring equal employment opportunities for all.

We provide equal opportunity to all individuals regardless of race, creed, color, religion, gender, sexual orientation, gender identity or expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related conditions (including breastfeeding), parental status, criminal histories consistent with legal requirements, or any other characteristic protected by law. At Gotion Inc., we strive to create an environment where everyone feels valued, respected, and empowered to thrive.

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Engineering and Information Technology

Industries

Manufacturing