Senior Engineer - Battery Management Systems

Komatsu Mining Corp.; Peoria (IL); Hybrid; USD 110,000 - 135,000; Full time

Benefits offered by this job

Health benefits: Medical, dental, vision, HSA

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

Job summary

Komatsu America Corp. in Peoria, Illinois is seeking a Senior Engineer for Battery Management Systems. This position focuses on designing and validating electronic systems for battery packs in electric vehicles. Responsibilities include hardware design, algorithm development, and compliance with safety standards. Candidates should have a Bachelor's or Master's degree in Electrical Engineering, proficiency in C/C++, and 4-8 years of relevant experience. The salary range for this role is $110,000 - $135,000, alongside a comprehensive benefits package.

Qualifications

• 4–8 years of experience in BMS development or related automotive/power electronics fields.
• Strong understanding of Lithium-ion cell behavior, power electronics, and data analysis.
• Experience in the design, development, testing, and integration of battery management systems.

Responsibilities

• Design BMS hardware, including sensor interfaces and protection circuits.
• Develop algorithms for SOC and SOH estimation.
• Perform hardware-in-the-loop (HIL) testing and software validation.
• Ensure battery packs meet safety standards like ISO 26262.
• Collaborate with engineers to optimize battery pack performance.

Skills

C/C++ programming

Embedded systems design

CAN/LIN communication

Data analysis

Thermal system design

Power electronics

Education

Bachelor’s or Master’s degree in Electrical Engineering

Tools

MATLAB/Simulink

PCB design

Job description

Senior Engineer – Battery Management Systems – Peoria, Illinois, USA

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

EEO Statement

Komatsu is an Equal Opportunity Workplace and an Affimative 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.