Senior Engineer - Battery Management Systems

Role details

Senior Engineer - Battery Management Systems 3/19/26 Peoria, Illinois, USA, 61639 35053 Onsite Position

Join Komatsu and Be Part of Something Big!

Job Overview

A Battery Management System (BMS) Engineer designs, develops, and validates electronic systems that monitor, control, and protect battery packs in electric vehicles (EVs) or energy storage systems. They are responsible for implementing algorithms for state-of-charge (SOC) and state-of-health (SOH) estimation, ensuring thermal safety, and ensuring compliance with standards like ISO 26262. Key skills include embedded C/C++ programming, CAN/LIN communication, and hardware design.

Key Job Responsibilities

• System Design & Development: Design BMS hardware, including sensor interfaces, protection circuits, and communication protocols (CAN/LIN).
• Algorithm Development: Develop algorithms to estimate state-of-charge (SOC), state-of-health (SOH), and manage cell balancing.
• Testing & Validation: Perform hardware-in-the-loop (HIL) testing, software validation, and system integration testing.
• Safety & Compliance: Ensure battery packs meet safety standards (e.g., ISO 26262), including overcharge/over-temperature protection.
• Collaboration: Work with mechanical, electrical, and thermal engineers to optimize pack performance.

Qualifications/Requirements

• Education: Bachelor’s or Master’s degree in Electrical Engineering, Electronics, or similar fields.
• Technical Skills: Proficiency in C/C++ for embedded systems, MATLAB/Simulink for simulation, and PCB design, and object-oriented programming (OOP)
• Experience: 4–8 years of experience in BMS development or related automotive/power electronics fields.
• Knowledge: Strong understanding of Lithium-ion cell behavior, power electronics, and data analysis.

• Experience with thermal system design,
• Experience in design, development, testing, and integration of battery and battery management systems into mobile applications.
• Experience with rectifiers, inverters, power control systems, and chargers.

Additional Information

Hiring Range

At Komatsu, your base pay is one part of your total compensation package. This role pays $110,000 - $135,000. The actual offer will consider a wide range of factors, including experience and location.

Company Benefits

Komatsu provides an extensive and robust employee benefits package that is designed to enhance the well-being of our employees and family members. We embrace a positive and empowering employee experience with a culture that prides itself on a diverse and inclusive environment.

• Health benefits: Medical, dental, vision, HSA, wellness programs, etc.
• 401k and/or employee savings programs
• Employee time off (vacation and designated holidays)
• Employee and family assistance programs
• Disability benefits
• Life insurance
• Employee learning and development programs

Diversity & Inclusion Commitment

At Komatsu, we come from diverse backgrounds, with unique perspectives, experiences and contributions. We believe that our people are part of our shared purpose. Connected by our core values of ambition, perseverance, collaboration and authenticity, we are committed to continually advancing in our support of diversity and inclusion. United, we are on a journey towards a sustainable future that creates value together.

Company Information

Komatsu develops and supplies technologies, equipment and services for the construction, mining, forklift, industrial and forestry markets. Headquartered in Tokyo, Japan, Komatsu employs more than 64,000 people worldwide, operating in more than 140 countries. For more than a century, the company has been creating value for its customers through manufacturing and technology innovation, partnering with others to empower a sustainable future where people, business and the planet thrive together. Since the company’s founding in 1921, Komatsu has been committed to supporting individuals and communities through job training, skills development and giving back.

As a Komatsu employee, you will be encouraged to grow alongside our global company, contributing to a more sustainable future for all. If you are looking for a company that values your talent and potential, join Komatsu to be a part of something big and help advance modern society. Learn more at www.komatsu.com.

EEO Statement

Komatsu is an Equal Opportunity Workplace and an Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.