Senior Engineer - Battery Management Systems

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

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.

• 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.

• 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.

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.

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

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.